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1

Effect of extractions on dynamic mechanical properties of1 white mulberry (Morus alba L.)2  

E-print Network

1 Effect of extractions on dynamic mechanical properties of1 white mulberry (Morus alba L.)2: anisotropy, damping coefficient, DMA, extractives, vibrational properties, white14 mulberry wood (Morus alba. In this study white23 mulberry (Morus alba L.), the main material for long-necked lutes in Iran, was extracted

Paris-Sud XI, Université de

2

Pyrrole alkaloids from the fruits of Morus alba.  

PubMed

Phytochemical investigation of the fruits of Morus alba afforded seventeen pyrrole alkaloids including five new compounds. The structures of five new pyrrole alkaloids, named morroles B-F (4, 5, 7, 16 and 17), were determined on the basis of spectroscopic interpretations. 4-[Formyl-5-(hydroxymethyl)-1H-pyrrol-1-yl]butanoate (2) was synthesized by chemical reaction but first isolated from nature. Among isolated compounds, compounds 6 and 14 significantly inhibited pancreatic lipase activity. PMID:25467154

Kim, Seon Beom; Chang, Bo Yoon; Hwang, Bang Yeon; Kim, Sung Yeon; Lee, Mi Kyeong

2014-12-15

3

Dormancy and spring burst of lateral buds on stems of low-pruned mulberry (Morus alba L.)  

E-print Network

Dormancy and spring burst of lateral buds on stems of low-pruned mulberry (Morus alba L.) T. Suzuki decapitation, lateral shoot growth of mulberry coppice (Morus alba L.) from low-pruned stumps has an extremely. Materials and Methods Rooted hardwood cuttings of Morus alba L. cv. Shin-ichinose were grown in a light clay

Paris-Sud XI, Université de

4

Seasonal changes in antioxidant activity, total phenolic and anthocyanin constituent of the stems of two Morus species ( Morus alba L. and Morus nigra L.)  

Microsoft Academic Search

Seasonal changes of antioxidant activity, total phenolic and anthocyanin constituent of Morus nigra L. and Morus alba L. stems were investigated. Stems tissues of these species exhibited different antioxidant activity. Antioxidant action as\\u000a well as anthocyanin constituents of these species reached the highest value in October whereas the lowest in February. Also,\\u000a total phenolic constituents showed the similar pattern.

Aysel Syvacy ; Mnevver Skmen

2004-01-01

5

SUSTITUCIN DE ALIMENTO CONCENTRADO, CON MORERA FRESCA (Morus alba), EN LA DIETA DE VACAS LECHERAS1  

Microsoft Academic Search

Substitution of concentrate feed with fresh mulberry (Morus alba), in the diet of dairy cattle. This experiment compared four balanced diets in which different percentages of 84-day-old fresh mulberry dry matter (0%, 20%, 40% and 60%) substituted its equivalent of dry matter in the concen- trate. The total intake of dry matter varied between 3.12% and 3.24% in relation to

Carlos Boschini

6

Regulation of obesity and lipid disorders by herbal extracts from Morus alba, Melissa officinalis, and Artemisia capillaris in high-fat diet-induced obese mice  

Microsoft Academic Search

Melissa officinalis L. (Labiatae), Morus alba L. (Moraceae), and Artemisia capillaris Thunb. (Compositae) are suggested to be involved in the regulation of hyperlipidemia. We hypothesized that Ob-X, a mixture of three herbs, Morus alba, Melissa officinalis and Artemisia iwayomogi, improves lipid metabolism, body weight gain and adiposity and that peroxisome proliferator-activated receptor ? (PPAR?) is associated with these events. Mice

Jinmi Lee; Kyungsil Chae; Juran Ha; Byung-Young Park; Hee Suk Lee; Sunhyo Jeong; Min-Young Kim; Michung Yoon

2008-01-01

7

Sorption isotherms and drying characteristics of mulberry ( Morus alba)  

Microsoft Academic Search

Drying characteristics of Mulberry (M. alba) including sorption isotherms and drying kinetics were investigated. Adsorption and desorption isotherms at 10, 20 and 30 C and isosteric heats of sorption were determined. At higher water activities, as the temperature was increased, a crossing of the isotherm curves was detected. Some hysteresis effect decreasing with higher temperature was observed. Mulberry was dried

Medeni Maskan; Fahrettin G??

1998-01-01

8

Protective effects of the Morus alba L. leaf extracts on cisplatin-induced nephrotoxicity in rat  

PubMed Central

Cisplatin (CP) as an important anti-tumor drug causes nephrotoxicity mainly by oxidative stress and renin-angiotensin system (RAS). Since flavonoids have high antioxidant activity and probable role in the inhibition of RAS, this study was designed to investigate the protective effect of hydroalcoholic extract and flavonoid fraction of Morus alba leaves on cisplatin-induced nephrotoxicity in rat. Extracts of Morus alba leaves were prepared and analyzed Phytochemically. Male rats (160-200 g) were used in this study (n=7-9). Normal group received 0.2 ml normal saline intraperitoneally (i.p.) once daily for ten days. Control animals received CP on the third day and saline in the remaining days. Other groups received either hydroalcoholic extract (200, 400 and 600 mg/kg, i.p.) or flavonoid fraction (50, 100 and 200 mg/kg, i.p.) for two days before CP administration and thereafter until tenth day. Serum concentrations of blood urea nitrogen (BUN), creatinine (Cr) and nitric oxide were measured using standard methods. Also left kidneys were prepared for pathological study. The serum levels of BUN and Cr increased in animals received CP. Hydroalcoholic extract was ineffective in reversing these alterations but flavonoid fraction (50 and 100 mg/kg) significantly inhibited CP-induced increases of BUN and Cr. None of the treatments could affect serum concentration of nitric oxide. Flavonoid fraction could also prevent CP-induced pathological damage of the kidney. It seems that concurrent use of flavonoid fraction of Morus alba with CP can protect kidneys from CP-induced nephrotoxicity. PMID:24019816

Nematbakhsh, M; Hajhashemi, V; Ghannadi, A; Talebi, A; Nikahd, M

2013-01-01

9

Preventive effects of Morus alba L. anthocyanins on diabetes in Zucker diabetic fatty rats  

PubMed Central

The mulberry plant (Morus alba L.) contains abundant anthocyanins (ANCs), which are natural antioxidants. The aim of this study was to determine the ANC composition of Thai Morus alba L. fruits and to assess the effect of an ANC extract on blood glucose and insulin levels in male leptin receptor-deficient Zucker diabetic fatty (ZDF) rats. The major components of the ANC extract were identified by high-performance liquid chromatography-electrospray ionization-mass spectrometry. ZDF and lean rats were treated with 125 or 250 mg ANCs/kg body weight, or 1% carboxymethylcellulose (CMC) twice daily for 5 weeks. Neither ANC dose had an effect on body weight. Following 5 weeks of treatment, glucose levels were observed to increase from 105.58.7 to 396.2521 mg/dl (P<0.0001) in the CMC-treated ZDF rats; however, the glucose levels were significantly lower in the rats treated with 125 or 250 mg/kg ANCs (228.2545 and 131.7510 mg/dl, respectively; P<0.001 versus CMC). The administration of 250 mg/kg ANCs normalized glucose levels in the ZDF rats towards those of the lean littermates. Insulin levels were decreased significantly in the ZDF rats treated with CMC or 125 mg/kg ANCs (P<0.0001), but not in the rats treated with 250 mg/kg ANCs. Histologically, 250 mg/kg ANCs was observed to prevent islet degeneration compared with the islets in CMC-treated rats. This study, demonstrated that ANCs extracted from Morus alba L. were well tolerated and exhibited effective anti-diabetic properties in ZDF rats. ANCs represent a promising class of therapeutic compounds that may be useful in the prevention of type 2 diabetes. PMID:24137248

SARIKAPHUTI, ARIYA; NARARATWANCHAI, THAMTHIWAT; HASHIGUCHI, TERUTO; ITO, TAKASHI; THAWORANUNTA, SITA; KIKUCHI, KIYOSHI; OYAMA, YOKO; MARUYAMA, IKURO; TANCHAROEN, SALUNYA

2013-01-01

10

[Effects of Morus alba and Setaria italica intercropping on their plant growth and diurnal variation of photosynthesis].  

PubMed

A field investigation was conducted to study the effects of intercropping Morus aIba and Setaria italica on their dry matter production, land use efficiency, and diurnal variation of leaf photosynthesis. Under intercropping, the plant height, basal diameter, root length, and branch number of M. alba increased by 6.0%, 13.7%, 6.8%, and 14.8%, respectively, and the leaf yield of M. alba was increased by 31.3%, as compared with monoculture M. alba. In contrast, the plant height and root length of intercropped S. italica had no significant difference with those of monoculture S. italica. Intercropping enhanced the equivalent ratio and use efficiency of arable land. For both M. alba and S. italica in monoculture or intercropping, their leaf photosynthetic depression all occurred at midday (12 :00), but the leaf photosynthetic depression of monoculture M. alba was heavier than that of intercropped M. alba. Intercropping promoted the leaf stomatal conductance (g(s)) and water use efficiency (WUE) of M. alba at midday, increased the photosynthetic carbon assimilation of M. alba, and inhibited the decline of M. alba leaf actual photochemical efficiency of PS II (phi(PS II)), photosynthetic electron transport rate (ETR), and the maximal photochemical of PS II (F(v)/F(m)) , which might contribute to alleviate the leaf photosynthetic depression of M. alba at midday. It was concluded that M. alba and S. italica intercropping could obviously improve the leaf photosynthetic capacity of M. alba. PMID:23173454

Zhu, Wen-Xu; Zhang, Hui-Hui; Xu, Nan; Wang, Peng; Wang, Shi-Dan; Mu, Shi-Nan; Liang, Ming; Sun, Guang-Yu

2012-07-01

11

Industrial dust sulphate and its effects on biochemical and morphological characteristics of Morus (Morus alba) plant in NCR Delhi.  

PubMed

Abundance of CaCO3 rich soil dust is a typical feature of atmospheric environment in the Indian region. During prevailing dry weather conditions, dustfall is deposited onto the foliar surfaces of plant affecting their morphology, stomata and the levels of biochemical constituents. This study reports the chemical characteristics of dustfall, its effect on foliar morphology and biochemical constituents of a medicinal plant (Morus alba) at two sites which are differentiated on the basis of landuse pattern, viz., (i) residential, Jawaharlal Nehru University (JNU), and (ii) industrial, Sahibabad (SB), located in the National Capital Region (NCR) of Delhi. Dustfall was characterized for major anions (F(-), Cl(-), NO3 (-) and SO4 (--)) and cations (Na(+), NH4 (+), K(+), Mg(++) and Ca(++)). Biochemical parameters such as chlorophyll a, chlorophyll b, total chlorophyll, carotenoid, proline and ascorbic acid were determined in foliar samples. The results showed that the dustfall fluxes of all the major ions were found to be higher at the industrial site (SB) as compared to the residential site (JNU). Foliar analysis revealed that the levels of biochemical parameters were more affected at SB site due to higher levels of dust SO4 (--) contributed by various anthropogenic sources resulting in more stressful conditions affecting the biochemistry of the plant. The possible entry pathways for dust SO4 (--) into foliar cells are also discussed in the paper. It was noticed that the deposition of urban dust was responsible for the damage of trichome, epidermis, cuticle and stomatal guard cells significantly affecting foliar morphology. SB exhibited more damage to these morphological parts suggesting that industrial dust is harmful to the plants. PMID:25647798

Gupta, Gyan Prakash; Singh, Sudha; Kumar, Bablu; Kulshrestha, U C

2015-03-01

12

Antidiabetic and Antioxidant Effects and Phytochemicals of Mulberry Fruit (Morus alba L.) Polyphenol Enhanced Extract  

PubMed Central

The antidiabetic and antioxidant activities of the ethyl acetate-soluble extract (MFE) of mulberry fruit (Morus alba L.) were investigated. In vitro, MFE showed potent ?-glucosidase inhibitory activity and radical-scavenging activities against DPPH and superoxide anion radicals. In vivo, MFE could significantly decrease fasting blood glucose (FBG) and glycosylated serum protein (GSP), and increase antioxidant enzymatic activities (SOD, CAT, GSH-Px) in streptozotocin (STZ)-induced diabetic mice. Bioactivity-guided fractionation of the MFE led to the isolation of 25 phenolic compounds, and their structures were identified on the basis of MS and NMR data. All the 25 compounds were isolated from mulberry fruit for the first time. Also, the ?-glucosidase inhibitory activity and antioxidant activity of the phenolics were evaluated. Potent ?-glucosidase inhibitory and radical-scavenging activities of these phenolics suggested that they may be partially responsible for the antidiabetic and antioxidant activities of mulberry fruit. PMID:23936259

Wang, Yihai; Xiang, Limin; Wang, Chunhua; Tang, Chao; He, Xiangjiu

2013-01-01

13

Comparison of genetic transformation in Morus alba L. via different regeneration systems.  

PubMed

Three different regeneration systems, viz. direct regeneration of adventitious shoot buds from explant, regeneration through callus cultures and somatic embryos were compared to see their effect on transfer of neomycin phosphotransferase (nptII) and beta-glucuronidase (GUS) reporter gene (gus) to Morus alba clone M5, through Agrobacterium tumefaciens mediated transformation. Pre-conditioning and co-cultivation durations had a marked effect on transformation frequency. The highest transformation frequency of 18.6% was obtained using direct induction of adventitious shoot buds. Expression and presence of transgene were assayed histochemically and through polymerase chain reaction. Southern analysis of GUS and PCR positive transformants confirmed stable integration of transgenes with two to four copy numbers. The selected transformants showed normal phenotype under in vitro and field conditions. PMID:16951950

Agarwal, Sandhya; Kanwar, Kamlesh

2007-02-01

14

Antihyperlipidemic effects of stilbenoids isolated from Morus alba in rats fed a high-cholesterol diet.  

PubMed

Mulberroside A (MUL) was purified from an ethanol extract of Morus alba root, and oxyresveratrol (OXY) was produced by enzymatic conversion of MUL. Normal rats, Triton WR-1339-induced hyperlipidemic rats, and high-cholesterol diet (HCD)-induced hyperlipidemic rats were orally treated with MUL or OXY (1-5mg/kg/day). MUL and OXY were administered 1h prior to concomitant treatment with Triton WR-1339 for a further 24h, whereas the drugs were administered concurrently with HCD for 4weeks. Oral MUL and OXY pre-treatment vs. water pre-treatment of Triton WR-1339-induced hyperlipidemic rats significantly (p<0.05) reduced the levels of serum lipids in a dose-dependent manner, while high-density lipoprotein cholesterol (HDL-C, or "good" cholesterol) levels were increased. Oral MUL and OXY treatment of HCD-fed rats also showed a significant (p<0.05) dose-dependent decrease in serum lipids, coronary artery risk index (CRI), and atherogenic index (AI), but not HDL-C. Furthermore, MUL and OXY treatment of HCD-induced hyperlipidemic rats demonstrated a significant dose-dependent improvement in the histological features of hepatic fatty degeneration. Aspartate aminotransferase and alanine aminotransferase values in OXY-treated normal rats were not significantly different from those in water-treated control rats. These results indicate that MUL and OXY might be developed as novel antihyperlipidemic agents. PMID:24407019

Jo, Sung-Pil; Kim, Jeong-Keun; Lim, Young-Hee

2014-03-01

15

Biosorption properties of Morus alba L. for Cd (II) ions removal from aqueous solutions.  

PubMed

The abundantly available industrial waste product Morus alba L. pomace (MAP) is one of the cost-effective biosorbent for removal of metal ions from aqueous solutions. Hence, in the present study, we aimed to test the ability of MAP to remove Cd(II) ions through batch biosorption process. Firstly, MAP was characterized using several techniques, and then the influence of various experimental parameters such as initial pH of the aqueous solution, initial Cd(II) concentration, contact time, MAP concentration, and temperature were evaluated upon the biosorption process. It was found that the maximum uptake of Cd(II) ions occurred at initial pH6.0 and optimum contact time was observed as 60min. Cd(II) ions adsorption on MAP analyzed by the Langmuir and Freundlich isotherm models and the maximum monolayer biosorption capacity of MAP was found to be 21.69mg?g(-1) by using the Langmuir isotherm model. The pseudo-first-order, pseudo-second-order, Elovich, and intraparticle diffusion models were employed to describe the biosorption kinetics. In order to investigate the thermodynamic properties of the biosorption process, the changes in the Gibbs free energy (?G), enthalpy (?H), and entropy (?S) were also evaluated and it has been concluded that the process was feasible, spontaneous, and endothermic in the temperature range of 5-40C. PMID:23184397

Serencam, Huseyin; Ozdes, Duygu; Duran, Celal; Tufekci, Mehmet

2013-07-01

16

Analysis and characterisation of phytochemicals in mulberry (Morus alba L.) fruits grown in Vojvodina, North Serbia.  

PubMed

In this study, the polyphenolic profile of 11 Morus alba fruits grown in the Vojvodina region was investigated. Ultra high performance liquid chromatography (UHPLC) coupled with Linear Trap Quadrupole and OrbiTrap mass analyzer, and UHPLC coupled with a diode array detector and a triple-quadrupole mass spectrometer were used for the identification and quantification of the polyphenols, respectively. A total of 14 hydroxycinnamic acid esters, 13 flavonol glycosides, and 14 anthocyanins were identified in the extracts with different distributions and contents according to the sampling. The total phenolic content ranged from 43.84 to 326.29 mg GAE/100g frozen fruit. The radical scavenging capacity (50.18-86.79%), metal chelating ability (0.21-8.15%), ferric ion reducing power (0.03-38.45 ?M ascorbic acid) and superoxide anion radical scavenging activity (16.53-62.83%) were assessed. The findings indicated that mulberry polyphenolics may act as potent superoxide anion radical scavengers and reducing agents. PMID:25308652

Nati?, Maja M; Dabi?, Dragana ?; Papetti, Adele; Fotiri? Aki?, Milica M; Ognjanov, Vladislav; Ljubojevi?, Mirjana; Tei?, ivoslav Lj

2015-03-15

17

Hypolipidemic and antioxidant effects of mulberry (Morus alba L.) fruit in hyperlipidaemia rats.  

PubMed

The phytochemical constituents of a freeze-dried powder of mulberry (Morus alba L.) fruit (MFP) were determined. The hypolipidemic and antioxidant effects of the MFP as a dietary supplement were evaluated in rats who were fed 4 weeks of either a high-fat or a normal diet supplemented with 5% or 10% MFP. Administration of MFP to rats on a high-fat diet resulted in a significant decline in levels of serum and liver triglyceride, total cholesterol, serum low-density lipoprotein cholesterol, and a decrease in the atherogenic index, while the serum high-density lipoprotein cholesterol was significantly increased. In addition, the serum and liver content of thiobarbituric acid related substances, a lipid peroxidation product, significantly decreased, while the superoxide dismutase (SOD) of red blood cell and liver, as well blood glutathione peroxidase (GSH-Px) activities significantly increased. No significant changes in lipid profile in the serum and liver were observed in rats on a normal diet supplemented with MFP, but blood and liver antioxidant status improved, as measured by SOD and GSH-Px activity, and lipid peroxidation was reduced. These beneficial effects of MFP on hyperlipidaemia rats might be attributed to its dietary fiber, fatty acids, phenolics, flavonoids, anthocyanins, vitamins and trace elements content. PMID:20561945

Yang, Xiaolan; Yang, Lei; Zheng, Haiying

2010-01-01

18

Antiosteoporotic Effect of Combined Extract of Morus alba and Polygonum odoratum  

PubMed Central

Due to the limitation of osteoporosis therapy, the alternative therapies from natural sources have been considered. In this study, we aimed to determine the antiosteoporotic effect of the combined extract of Morus alba and Polygonum odoratum leaves. Ovariectomized rats, weighing 200220?g, were orally given the combined extract at doses of 5, 150, and 300?mgkg?1 BW for 3 months. At the end of study, blood was collected to determine serum osteocalcin, calcium, and alkaline phosphatase level. In addition, tibia bone was isolated to determine bone oxidative stress markers, cortical bone thickness, and density of osteoblast. The combined extract decreased oxidative stress and osteoclast density but increased osteoblast density and cortical thickness. The elevation of serum calcium, alkaline phosphatase, and osteocalcin was also observed. These results suggested the antiosteoporotic effect of the combined extract via the increased growth formation together with the suppression of bone resorption. However, further studies concerning chronic toxicity and the underlying mechanism are required. PMID:25478061

Sungkamanee, Sudarat; Thukham-mee, Wipawee

2014-01-01

19

Protective Effects of Morus alba Leaves Extract on Ocular Functions of Pups from Diabetic and Hypercholesterolemic Mother Rats  

PubMed Central

Phytotherapy is frequently considered to be less toxic and free from side effects than synthetic drugs. Hence, the present study was designed to investigate the protective use of crude water extract of Morus alba leaves on ocular functions including cataractogenesis, biochemical diabetic and hypercholesterolemic markers, retinal neurotransmitters and retinopathy of rat pups maternally subjected to either diabetes and/or hypercholesterolemia. Application of crude water extract of Morus alba resulted in amelioration of the alterations of maternal serum glucose, LDL, HDL, total cholesterol and creatine phosphokinase activity as well as retinal neurotransmitters including acetylcholine (ACE), adrenaline (AD), nor-adrenaline (NAD), serotonin (5-HT), histamine (HS), dopamine (DA) and gamma amino butyric acid (GABA). The retina of pups of either diabetic and/or hypercholesterolemia mothers exhibited massive alterations of retinal neurotransmitters. The alterations of retinal neurotransmitters were correlated with the observed pathological alterations of retinal pigmented epithelium, photoreceptor inner segment and ganglion cells and increased incidence of DNA fragmentation and apoptosis cell death. However, protection with Morus alba extract led to amelioration of the pathological alterations of retinal neurons and estimated neurotransmitters. Furthermore, a striking incidence of cataract was detected in pups of either diabetic and/or hypercholesterolemic mothers. Highest cataractogenesis was observed in pups of combined -treated groups. Our data indicate that experimental maternal diabetes alone or in combination with hypercholesterolemia led to alteration in the ocular structures of their pups, with an increasing incidence of cataract and retinopathy, and the effects of the extract might be attributed to the hypoglycaemic, antihypercholesterolemic and anti-oxidative potential of flavonoids, the major components of the plant extract. PMID:21697998

El-Sayyad, H.I.H.; El-Sherbiny, M.A.; Sobh, M.A.; Abou-El-Naga, A.M.; Ibrahim, M.A.N.; Mousa, S.A.

2011-01-01

20

Protective effects of Morus alba leaves extract on ocular functions of pups from diabetic and hypercholesterolemic mother rats.  

PubMed

Phytotherapy is frequently considered to be less toxic and free from side effects than synthetic drugs. Hence, the present study was designed to investigate the protective use of crude water extract of Morus alba leaves on ocular functions including cataractogenesis, biochemical diabetic and hypercholesterolemic markers, retinal neurotransmitters and retinopathy of rat pups maternally subjected to either diabetes and/or hypercholesterolemia. Application of crude water extract of Morus alba resulted in amelioration of the alterations of maternal serum glucose, LDL, HDL, total cholesterol and creatine phosphokinase activity as well as retinal neurotransmitters including acetylcholine (ACE), adrenaline (AD), nor-adrenaline (NAD), serotonin (5-HT), histamine (HS), dopamine (DA) and gamma amino butyric acid (GABA). The retina of pups of either diabetic and/or hypercholesterolemia mothers exhibited massive alterations of retinal neurotransmitters. The alterations of retinal neurotransmitters were correlated with the observed pathological alterations of retinal pigmented epithelium, photoreceptor inner segment and ganglion cells and increased incidence of DNA fragmentation and apoptosis cell death. However, protection with Morus alba extract led to amelioration of the pathological alterations of retinal neurons and estimated neurotransmitters. Furthermore, a striking incidence of cataract was detected in pups of either diabetic and/or hypercholesterolemic mothers. Highest cataractogenesis was observed in pups of combined -treated groups. Our data indicate that experimental maternal diabetes alone or in combination with hypercholesterolemia led to alteration in the ocular structures of their pups, with an increasing incidence of cataract and retinopathy, and the effects of the extract might be attributed to the hypoglycaemic, antihypercholesterolemic and anti-oxidative potential of flavonoids, the major components of the plant extract. PMID:21697998

El-Sayyad, H I H; El-Sherbiny, M A; Sobh, M A; Abou-El-Naga, A M; Ibrahim, M A N; Mousa, S A

2011-01-01

21

Morus alba and active compound oxyresveratrol exert anti-inflammatory activity via inhibition of leukocyte migration involving MEK/ERK signaling  

PubMed Central

Background Morus alba has long been used in traditional Chinese medicine to treat inflammatory diseases; however, the scientific basis for such usage and the mechanism of action are not well understood. This study investigated the action of M. alba on leukocyte migration, one key step in inflammation. Methods Gas chromatography-mass spectrometry (GC-MS) and cluster analyses of supercritical CO2 extracts of three Morus species were performed for chemotaxonomy-aided plant authentication. Phytochemistry and CXCR4-mediated chemotaxis assays were used to characterize the chemical and biological properties of M. alba and its active compound, oxyresveratrol. fluorescence-activated cell sorting (FACS) and Western blot analyses were conducted to determine the mode of action of oxyresveratrol. Results Chemotaxonomy was used to help authenticate M. alba. Chemotaxis-based isolation identified oxyresveratrol as an active component in M. alba. Phytochemical and chemotaxis assays showed that the crude extract, ethyl acetate fraction and oxyresveratrol from M. alba suppressed cell migration of Jurkat T cells in response to SDF-1. Mechanistic study indicated that oxyresveratrol diminished CXCR4-mediated T-cell migration via inhibition of the MEK/ERK signaling cascade. Conclusions A combination of GC-MS and cluster analysis techniques are applicable for authentication of the Morus species. Anti-inflammatory benefits of M. alba and its active compound, oxyresveratrol, may involve the inhibition of CXCR-4-mediated chemotaxis and MEK/ERK pathway in T and other immune cells. PMID:23433072

2013-01-01

22

Anti-inflammatory and anti-cancer activity of mulberry (Morus alba L.) root bark  

PubMed Central

Background Root bark of mulberry (Morus alba L.) has been used in herbal medicine as anti-phlogistic, liver protective, kidney protective, hypotensive, diuretic, anti-cough and analgesic agent. However, the anti-cancer activity and the potential anti-cancer mechanisms of mulberry root bark have not been elucidated. We performed in vitro study to investigate whether mulberry root bark extract (MRBE) shows anti-inflammatory and anti-cancer activity. Methods In anti-inflammatory activity, NO was measured using the griess method. iNOS and proteins regulating NF-?B and ERK1/2 signaling were analyzed by Western blot. In anti-cancer activity, cell growth was measured by MTT assay. Cleaved PARP, ATF3 and cyclin D1 were analyzed by Western blot. Results In anti-inflammatory effect, MRBE blocked NO production via suppressing iNOS over-expression in LPS-stimulated RAW264.7 cells. In addition, MRBE inhibited NF-?B activation through p65 nuclear translocation via blocking I?B-? degradation and ERK1/2 activation via its hyper-phosphorylation. In anti-cancer activity, MRBE deos-dependently induced cell growth arrest and apoptosis in human colorectal cancer cells, SW480. MRBE treatment to SW480 cells activated ATF3 expression and down-regulated cyclin D1 level. We also observed that MRBE-induced ATF3 expression was dependent on ROS and GSK3?. Moreover, MRBE-induced cyclin D1 down-regulation was mediated from cyclin D1 proteasomal degradation, which was dependent on ROS. Conclusions These findings suggest that mulberry root bark exerts anti-inflammatory and anti-cancer activity. PMID:24962785

2014-01-01

23

Involvement of histaminergic system in the anxiolytic-like activities of Morus alba leaves in mice.  

PubMed

The aim of this study was to identify the effects of 85% methanolic extract of Morus alba leaves (EMA), which is a traditional herb, in mice. The effects of EMA on the anxiolytic-like behaviour were studied using the elevated plus maze (EPM) and hole-board test. To elucidate the mode of action of the anxiolytic-like effects of EMA, the mice were subjected to the co-administration of EMA (200?mg/kg, per os (p.o.)) and either antagonist. EMA (at 200 or 400?mg/kg) significantly increased the percentages of time-spent in the open arms and entries into the open arms of the EPM versus vehicle-treated control group (p<0.05). Moreover, in the hole-board test, EMA (200 and 400?mg/kg) significantly increased the number of head-dips versus vehicle-treated control group (p<0.05). However, there were no changes in the locomotor activity and myorelaxant effects in any group compared with the vehicle-treated control group. In addition, the anxiolytic-like effects of EMA were abolished by thioperamide (10?mg/kg, intraperitoneally (i.p.)), which is a histamine H3 receptor antagonist. Moreover, results from reverse transcription polymerase chain reaction (RT-PCR) also revealed that the amygdalal histidine decarboxylase mRNA expression levels in EMA (200?mg/kg)-treated group were significantly higher than those in the vehicle-treated controls (p<0.05). These results suggest that EMA might prove to be an effective anxiolytic agent and that EMA acts via the histaminergic system in central nerve system. PMID:23965748

Lee, Seungheon; Kim, Dong Hyun; Lee, Ji Hye; Ko, Eun Seong; Oh, Won Bo; Seo, Yong Taek; Jang, Young Pyo; Ryu, Jong Hoon; Jung, Ji Wook

2013-01-01

24

Antioxidant activities and polyphenol content of Morus alba leaf extracts collected from varying regions  

PubMed Central

Morus alba leaf (MAL), also known as Mori folium when used as a herbal medicine, has traditionally been used in Chinese medicine to treat diabetes, protect the liver and lower blood pressure. In the present study, MAL was collected from various regions in Korea and the antioxidant activity, total polyphenol contents and main flavonoid contents was investigated. MAL were collected from various areas in Korea and extracted with methanol. The total polyphenol contents were evaluated based on the Folin-Ciocalteu method using a spectrophotometer. The antioxidant activities were determined by a 2,2-diphenyl-1-picrylhydrazyl radical scavenging assay method. The identification and quantification of three main polyphenol constituents was performed using high-performance liquid chromatography/diode array detection analysis. The total polyphenol contents of the MAL extracts varied between 23.2 and 55.4 mg gallic acid equivalent/g. The radical scavenging activity (SC50) of the MAL extracts ranged between 584 and 139 ?g/ml. Three flavonol compounds (rutin, isoquercitrin and astragalin) were identified as main polyphenol constituents. These contents varied from 0.6812.7, 0.699.86 and 0.053.55 mg/g, respectively. The average of the total was 9.52 mg/g, which was similar to that of commercial MAL extracts (10.58 mg/g). Among the three flavonol compounds, isoquercitrin showed the highest content (5.68 mg/g) followed by rutin (3.1 mg/g) and astragalin (2.4 mg/g). In the present study, the radical scavenging activity, polyphenol content and flavonol content of MAL were significantly different according to growing area. These three flavonol compounds were identified as main constituents of MAL in this study, and are known to have various biological activities, as well as strong antioxidant activities. Therefore, the sum of these three flavonol compounds was indicated as a good marker for the quality control of Mori folium. PMID:25054010

KIM, DONG-SEON; KANG, YOUNG MIN; JIN, WEN YI; SUNG, YOON-YOUNG; CHOI, GOYA; KIM, HO KYOUNG

2014-01-01

25

EFFECT OF EXTRACTS OF MURRAYA KOENIGII SPRENG. AND MORUS ALBA LINN. ON THE AGE OF ATTAINMENT OF PUBERTY AND OVARIAN FOLLICULOGENESIS IN RATS  

PubMed Central

An experiment was conducted to evaluate the effects of methanolic extracts of Murraya koenigii Spreng. (Curry leaf) and Morus alba Linn. (Mulberry leaf) on the age of attainment of puberty, relative ovary and uterus weight and the number of ovarian surface follicles in female Wistar albino rats. The rats were reared from 20 to 70 days of age in six groups consisting of eight rats in each group. Group I and II were orally administered with 0.5 ml distilled water and 0.5 ml 10% DMSO, respectively. Group III, IV, V and VI were orally administered with methanolic extracts of Murraya koenigii at 500 mg/kg b.w. and 1000 mg/kg b.w. and methanolic extracts of Morus alba at 250 mg/kg b.w. and 500 mg/kg b.w, respectively. The significant advancement in the mean age of attainment of puberty was observed along with increase in number of surface follicles on both the ovaries in Group III, IV and VI. Whereas, the relative ovary weight was non significant (P>0.05) in all the treated groups, the relative uterus weight was significant (P<0.05) in Group IV and Group VI. These observations were attributed to the effects of phytoestrogens present in the methanolic extracts of Murraya koenigii Spreng. and Morus alba Linn PMID:24825989

Nandini, M. S.; Veena, T.; Swamy, M. Narayana

2010-01-01

26

Molecular Characterization and Phylogenetic Analysis of Two Novel Regio-specific Flavonoid Prenyltransferases from Morus alba and Cudrania tricuspidata.  

PubMed

Prenylated flavonoids are attractive specialized metabolites with a wide range of biological activities and are distributed in several plant families. The prenylation catalyzed by prenyltransferases represents a Friedel-Crafts alkylation of the flavonoid skeleton in the biosynthesis of natural prenylated flavonoids and contributes to the structural diversity and biological activities of these compounds. To date, all identified plant flavonoid prenyltransferases (FPTs) have been identified in Leguminosae. In the present study two new FPTs, Morus alba isoliquiritigenin 3'-dimethylallyltransferase (MaIDT) and Cudrania tricuspidata isoliquiritigenin 3'-dimethylallyltransferase (CtIDT), were identified from moraceous plants M. alba and C. tricuspidata, respectively. MaIDT and CtIDT shared low levels of homology with the leguminous FPTs. MaIDT and CtIDT are predicted to be membrane-bound proteins with predicted transit peptides, seven transmembrane regions, and conserved functional domains that are similar to other homogentisate prenyltransferases. Recombinant MaIDT and CtIDT were able to regioselectively introduce dimethylallyl diphosphate into the A ring of three flavonoids with different skeleton types (chalcones, isoflavones, and flavones). Phylogenetic analysis revealed that MaIDT and CtIDT are distantly related to their homologs in Leguminosae, which suggests that FPTs in Moraceae and Leguminosae might have evolved independently. MaIDT and CtIDT represent the first two non-Leguminosae FPTs to be identified in plants and could thus lead to the identification of additional evolutionarily varied FPTs in other non-Leguminosae plants and could elucidate the biosyntheses of prenylated flavonoids in various plants. Furthermore, MaIDT and CtIDT might be used for regiospecific prenylation of flavonoids to produce bioactive compounds for potential therapeutic applications due to their high efficiency and catalytic promiscuity. PMID:25361766

Wang, Ruishan; Chen, Ridao; Li, Jianhua; Liu, Xiao; Xie, Kebo; Chen, Dawei; Yin, Yunze; Tao, Xiaoyu; Xie, Dan; Zou, Jianhua; Yang, Lin; Dai, Jungui

2014-12-26

27

Identification and Effect of Two Flavonoids from Root Bark of Morus alba against Ichthyophthirius multifiliis in Grass Carp.  

PubMed

Ichthyophthirius multifiliis (Ich) is an important ciliate that parasitizes gills and skin of freshwater fish and causes massive fish mortality. In this study, two flavonoids (kuwanons G and O) with anti-Ich activity were isolated by bioassay-guided fractionation from the root bark of Morus alba, an important plant for sericulture. The chemical structures of kuwanons G and O were elucidated by spectroscopic analyses. Kuwanons G and O caused 100% mortality of I. multifiliis theronts at the concentration of 2 mg/L and possessed a median effective concentration (EC50) of 0.8 0.04 mg/L against the theronts. In addition, kuwanons G and O significantly reduced the infectivity of I. multifiliis theronts at concentrations of 0.125, 0.25, 0.5, and 1 mg/L. The median lethal concentrations (LC50) of kuwanons G and O to grass carp were 38.0 0.82 and 26.9 0.51 mg/L, which were approximately 50 and 35 times the EC50 for killing theronts. The results indicate that kuwanons G and O have the potential to become safe and effective drugs to control ichthyophthiriasis. PMID:25603693

Liang, Jing-Han; Fu, Yao-Wu; Zhang, Qi-Zhong; Xu, De-Hai; Wang, Bin; Lin, De-Jie

2015-02-11

28

Electrophysiological and Behavioral Responses of Male Fall Webworm Moths (Hyphantria cunea) to Herbivory-Induced Mulberry (Morus alba) Leaf Volatiles  

PubMed Central

Volatile organic compounds (VOCs) were collected from damaged and intact mulberry leaves (Morus alba L., Moraceae) and from Hyphantria cunea larvae by headspace absorption with Super Q columns. We identified their constituents using gas chromatography-mass spectrometry, and evaluated the responses of male H. cunea antennae to the compounds using gas chromatography-flame ionization detection coupled with electroantennographic detection. Eleven VOC constituents were found to stimulate antennae of male H. cunea moths: ?-ocimene, hexanal, cis-3-hexenal, limonene, trans-2-hexenal, cyclohexanone, cis-2-penten-1-ol, 6-methyl-5-hepten-2-one, 4-hydroxy-4-methyl-2-pentanone, trans-3-hexen-1-ol, and 2,4-dimethyl-3-pentanol. Nine of these chemicals were released by intact, mechanically-damaged, and herbivore-damaged leaves, while cis-2-penten-1-ol was released only by intact and mechanically-damaged leaves and ?-ocimene was released only by herbivore-damaged leaves. Results from wind tunnel experiments conducted with volatile components indicated that male moths were significantly more attracted to herbivory-induced volatiles than the solvent control. Furthermore, male moths' attraction to a sex pheromone lure was increased by herbivory-induced compounds and ?-ocimene, but reduced by cis-2-penten-1-ol. A proof long-range field trapping experiment showed that the efficiency of sex pheromone lures in trapping male moths was increased by ?-ocimene and reduced by cis-2-penten-1-ol. PMID:23166622

Tang, Rui; Zhang, Jin Ping; Zhang, Zhong Ning

2012-01-01

29

Electrophysiological and behavioral responses of male fall webworm moths (Hyphantria cunea) to Herbivory-induced mulberry (Morus alba) leaf volatiles.  

PubMed

Volatile organic compounds (VOCs) were collected from damaged and intact mulberry leaves (Morus alba L., Moraceae) and from Hyphantria cunea larvae by headspace absorption with Super Q columns. We identified their constituents using gas chromatography-mass spectrometry, and evaluated the responses of male H. cunea antennae to the compounds using gas chromatography-flame ionization detection coupled with electroantennographic detection. Eleven VOC constituents were found to stimulate antennae of male H. cunea moths: ?-ocimene, hexanal, cis-3-hexenal, limonene, trans-2-hexenal, cyclohexanone, cis-2-penten-1-ol, 6-methyl-5-hepten-2-one, 4-hydroxy-4-methyl-2-pentanone, trans-3-hexen-1-ol, and 2,4-dimethyl-3-pentanol. Nine of these chemicals were released by intact, mechanically-damaged, and herbivore-damaged leaves, while cis-2-penten-1-ol was released only by intact and mechanically-damaged leaves and ?-ocimene was released only by herbivore-damaged leaves. Results from wind tunnel experiments conducted with volatile components indicated that male moths were significantly more attracted to herbivory-induced volatiles than the solvent control. Furthermore, male moths' attraction to a sex pheromone lure was increased by herbivory-induced compounds and ?-ocimene, but reduced by cis-2-penten-1-ol. A proof long-range field trapping experiment showed that the efficiency of sex pheromone lures in trapping male moths was increased by ?-ocimene and reduced by cis-2-penten-1-ol. PMID:23166622

Tang, Rui; Zhang, Jin Ping; Zhang, Zhong Ning

2012-01-01

30

Structure and genetic diversity of natural populations of Morus alba in the trans-Himalayan Ladakh region.  

PubMed

Sequence-related amplified polymorphism markers were used to assess the genetic structure in three natural populations of Morus alba from trans-Himalaya. Multilocation sampling was conducted across 14 collection sites. The overall genetic diversity estimates were high: percentage polymorphic loci 89.66%, Nei's gene diversity 0.2286, and Shannon's information index 0.2175. At a regional level, partitioning of variability assessed using analysis of molecular variance (AMOVA), revealed 80% variation within and 20% among collection sites. Pattern appeared in STRUCTURE, BARRIER, and AMOVA, clearly demonstrating gene flow between the Indus and Suru populations and a geographic barrier between the Indus-Suru and Nubra populations, which effectively hinders gene flow. The results showed significant genetic differentiation, population structure, high to restricted gene flow, and high genetic diversity. The assumption that samples collected from the three valleys represent three different populations does not hold true. The fragmentation present in trans-Himalaya was more natural and less anthropogenic. PMID:24243146

Bajpai, Prabodh K; Warghat, Ashish R; Sharma, Ram Kumar; Yadav, Ashish; Thakur, Anil K; Srivastava, Ravi B; Stobdan, Tsering

2014-04-01

31

White Mulberry (Morus alba) Foliage Methanolic Extract Can Alleviate Aeromonas hydrophila Infection in African Catfish (Clarias gariepinus)  

PubMed Central

Two experiments were simultaneously conducted with Morus alba (white mulberry) foliage extract (MFE) as a growth promoter and treatment of Aeromonas hydrophila infection in separate 60 and 30 days trail (Experiments 1 and 2, resp.) in African catfish (Clarias gariepinus). In Experiment 1, four diets, control and control supplemented with 2, 5, or 7?g MFE/kg dry matter (DM) of diet, were used. In Experiment 2, fish were intraperitoneally infected with Aeromonas hydrophila and fed the same diets as experiment 1 plus additional two diets with or without antibiotic. Results of experiment 1 showed that growth was unaffected by dietary levels of MFE. Treatments with the inclusion of MFE at the levels of 5 and 7?g/Kg?DM had no mortality. Red blood cells (RBC), albumin, and total protein were all higher for the treatments fed MFE (5 and 7?g/Kg?DM). Results of experiment 2 showed RBC, hemoglobin, hematocrit, globulin, albumin, and total protein improved with the increase in MFE in the infected fish. The dietary MFE at the level of 7?g/kg?DM reduced mortality rate. In conclusion, MFE at the level of 7?g/kg?DM could be a valuable dietary supplement to cure the infected fish. PMID:25574488

Sheikhlar, Atefeh; Alimon, Abd Razk; Daud, Hassan; Saad, Chee R.; Webster, Carl D.; Meng, Goh Yong

2014-01-01

32

White Mulberry (Morus alba) Foliage Methanolic Extract Can Alleviate Aeromonas hydrophila Infection in African Catfish (Clarias gariepinus).  

PubMed

Two experiments were simultaneously conducted with Morus alba (white mulberry) foliage extract (MFE) as a growth promoter and treatment of Aeromonas hydrophila infection in separate 60 and 30 days trail (Experiments 1 and 2, resp.) in African catfish (Clarias gariepinus). In Experiment 1, four diets, control and control supplemented with 2, 5, or 7?g MFE/kg dry matter (DM) of diet, were used. In Experiment 2, fish were intraperitoneally infected with Aeromonas hydrophila and fed the same diets as experiment 1 plus additional two diets with or without antibiotic. Results of experiment 1 showed that growth was unaffected by dietary levels of MFE. Treatments with the inclusion of MFE at the levels of 5 and 7?g/Kg?DM had no mortality. Red blood cells (RBC), albumin, and total protein were all higher for the treatments fed MFE (5 and 7?g/Kg?DM). Results of experiment 2 showed RBC, hemoglobin, hematocrit, globulin, albumin, and total protein improved with the increase in MFE in the infected fish. The dietary MFE at the level of 7?g/kg?DM reduced mortality rate. In conclusion, MFE at the level of 7?g/kg?DM could be a valuable dietary supplement to cure the infected fish. PMID:25574488

Sheikhlar, Atefeh; Alimon, Abd Razk; Daud, Hassan; Saad, Chee R; Webster, Carl D; Meng, Goh Yong; Ebrahimi, Mahdi

2014-01-01

33

Antidepressant-like effects of the ethyl acetate soluble fraction of the root bark of Morus alba on the immobility behavior of rats in the forced swim test.  

PubMed

In this study, the antidepressant-like effects of Morus alba fractions in rats were investigated in the forced swim test (FST). Male Wistar rats (9-week-old) were administered orally the M. alba ethyl acetate (EtOAc 30 and 100 mg/kg) and M. alba n-butanol fractions (n-BuOH 30 and 100 mg/kg) every day for 7 consecutive days. On day 7, 1 h after the final administration of the fractions, the rats were exposed to the FST. M. alba EtOAc fraction at the dose of 100 mg/kg induced a decrease in immobility behavior (p < 0.01) with a concomitant increase in both climbing (p < 0.05) and swimming (p < 0.05) behaviors when compared with the control group, and M. alba EtOAc fraction at the dose of 100 mg/kg decreased the hypothalamic-pituitary-adrenal (HPA) axis response to the stress, as indicated by an attenuated corticosterone response and decreased c-fos immunoreactivity in the hippocampal and hypothalamic paraventricular nucleus (PVN) region. These findings demonstrated that M. alba EtOAc fraction have beneficial effects on depressive behaviors and restore both altered c-fos expression and HPA activity. PMID:24927367

Lim, Dong Wook; Kim, Yun Tai; Park, Ji-Hae; Baek, Nam-In; Han, Daeseok

2014-01-01

34

Purification, characterization and immunomodulating activity of a pectic polysaccharide isolated from Korean mulberry fruit Oddi (Morus alba L.).  

PubMed

A water-soluble polysaccharide (JS-MP-1) was isolated and purified from the Korean mulberry fruits Oddi (Morus alba L.) by crushing the fresh fruits then performing ethanol precipitation and DEAE-cellulose ion exchange chromatography. The neutral monosaccharide composition of the purified JS-MP-1 was determined to be composed mainly of galactose (37.6%, in mole percent), arabinose (36.3%), and rhamnose (18.4%), while other major sugars such as glucose, xylose, mannose, and fucose were present as minor components. HPLC analysis revealed that JS-MP-1 contains both galacturonic acid (GalA) and glucuronic acid (GlcA) at approximately 4:1 in mole percent. Monosaccharide composition, Fourier-transform infrared (FTIR) analysis, biochemical analysis, and elemental analysis suggested that JS-MP-1 is an acidic heteropolysaccharide, most likely a rhamnoarabinogalacturonan type plant pectic polysaccharide, with an apparent molecular mass of 1600 kDa containing no, or if any, negligible level of sulfate esters and proteins. Enzyme-Linked Immunosorbent Assay and RT-PCR analysis demonstrated that JS-MP-1 significantly stimulates murine RAW264.7 macrophage cells to release chemokines (RANTES and MIP-1?) and proinflammatory cytokines (TNF-? and IL-6) and to induce the expression of iNOS and COX-2, which are responsible for the production of NO and prostaglandin PGE2, respectively. These results suggest that the mulberry fruit-derived polysaccharide JS-MP-1 can act as a potent immunomodulator, and these observations may support the applicability of this polysaccharide as an immunotherapeutic adjuvant or the water extracts of the mulberry fruit as a beneficial health food. PMID:24120956

Lee, Ji Sun; Synytsya, Andriy; Kim, Hyun Bok; Choi, Doo Jin; Lee, Seul; Lee, Jisun; Kim, Woo Jung; Jang, Seongjae; Park, Yong Il

2013-11-01

35

A comparative study on the antioxidant activity of methanolic extracts from different parts of Morus alba L. (Moraceae)  

PubMed Central

Background Antioxidants play an important role to protect damage caused by oxidative stress (OS). Plants having phenolic contents are reported to possess antioxidant properties. The present study was designed to investigate the antioxidant properties and phenolic contents (total phenols, flavonoids, flavonols and proanthrocyanidins) of methanolic extracts from Morus alba (locally named as Tut and commonly known as white mulberry) stem barks (TSB), root bark (TRB), leaves (TL) and fruits (TF) to make a statistical correlation between phenolic contents and antioxidant potential. Methods The antioxidant activities and phenolic contents of methanolic extractives were evaluated by in vitro standard method using spectrophotometer. The antioxidant activities were determined by total antioxidant capacity, DPPH (1,1-diphenyl-2-picrylhydrazine) radical scavenging assay, hydroxyl radical scavenging assay, ferrous reducing antioxidant capacity and lipid peroxidation inhibition assay methods. Results Among the extracts, TSB showed the highest antioxidant activity followed by TRB, TF and TL. Based on DPPH and hydroxyl radical scavenging activity, the TSB extract was the most effective one with IC50 37.75 and 58.90 ?g/mL, followed by TRB, TF and TL with IC50 40.20 and 102.03; 175.01 and 114.63 and 220.23 and 234.63 ?g/mL, respectively. The TSB extract had the most potent inhibitory activity against lipid peroxidation with IC50 145.31 ?g/mL. In addition, the reducing capacity on ferrous ion was in the following order: TSB > TRB > TL > TF. The content of phenolics, flavonoids, flavonols and proanthocyanidins of TSB was found to be higher than other extractives. Conclusion The results indicate high correlation and regression (p-value <0 .001) between phenolic contents and antioxidant potentials of the extracts, hence the Tut plant could serve as effective free radical inhibitor or scavenger which may be a good candidate for pharmaceutical plant-based products. However, further exploration is necessary for effective use in both modern and traditional system of medicines. PMID:23331970

2013-01-01

36

[Effects of NaCl and Na2CO3 stresses on the growth and photosynthesis characteristics of Morus alba seedlings].  

PubMed

Taking 1-year old Morus alba variety 'Qinglong' seedlings as test materials, this paper studied their growth and photosynthetic characteristics under the stresses of different concentration neutral salt NaCl and alkali salt Na2CO3. Salt stresses decreased the plant height and the leaf number, biomass, and photosynthetic capacity of the seedlings markedly. With increasing concentration Na+, the leaf stomatal conductance, transpiration rate, net photosynthetic rate, actual photochemical efficiency, electron transport rate, and photochemical quenching (qP) decreased obviously, the energy dissipation rate increased, and the light use efficiency and photosynthetic capacity dropped down. At low concentrations Na+ (< 150 mmol x L(-1)), the seedlings growth and leaf photosynthetic capacity were slightly inhibited, and the adaptability of the seedlings to the salt stresses increased via the increase of root/shoot ratio. However, this protection mechanism was impaired by increasing salt concentration. Na2CO3 stress (Na+ concentration > 50 mmol x L(-)) had stronger inhibitory effects on the seedlings growth and leaf photosynthetic capacity, and the effect increased with increasing Na+ concentration. It was concluded that at Na+ concentration < 150 mmol x L(-1), the photosynthetic adaptability of M. alba to neutral salt stress was mainly dependent on the plant morphology and photosynthetic metabolism, but at Na+ concentration > 150 mmol x L(-1), the photosynthetic adaptability of M. alba to alkali salt stress was mainly dependent on the photosynthetic metabolism. PMID:22720603

Zhang, Hui-Hui; Zhang, Xiu-Li; Li, Xin; Ding, Jun-Nan; Zhu, Wen-Xu; Qi, Fei; Zhang, Ting; Tian, Ye; Sun, Guang-Yu

2012-03-01

37

Effect of Kuwanon G isolated from the root bark of Morus alba on ovalbumin-induced allergic response in a mouse model of asthma.  

PubMed

The root bark of Morus alba L. (Mori Cortex Radicis; MCR) is traditionally used in Korean medicine for upper respiratory diseases. In this study, we investigated the antiasthmatic effect of kuwanon G isolated from MCR on ovalbumin (OVA)-induced allergic asthma in mice. Kuwanon G (1 and 10?mg/kg) was administered orally in mice once a day for 7?days during OVA airway challenge. We measured the levels of OVA-specific IgE and Th2 cytokines (IL-4, IL-5, and IL-13) in the sera or bronchoalveolar lavage (BAL) fluids and also counted the immune cells in BAL fluids. Histopathological changes in the lung tissues were analyzed. Kuwanon G significantly decreased the levels of OVA-specific IgE and IL-4, IL-5, and IL-13 in the sera and BAL fluids of asthma mice. Kuwanon G reduced the numbers of inflammatory cells in the BAL fluids of asthma mice. Furthermore, the pathological feature of lungs including infiltration of inflammatory cells, thickened epithelium of bronchioles, mucus, and collagen accumulation was inhibited by kuwanon G. These results indicate that kuwanon G prevents the pathological progression of allergic asthma through the inhibition of lung destruction by inflammation and immune stimulation. PMID:25116225

Jung, Hyo Won; Kang, Seok Yong; Kang, Jong Seong; Kim, A Ryun; Woo, Eun-Rhan; Park, Yong-Ki

2014-11-01

38

Antiplatelet Activity of Morus alba Leaves Extract, Mediated via Inhibiting Granule Secretion and Blocking the Phosphorylation of Extracellular-Signal-Regulated Kinase and Akt  

PubMed Central

Ethnopharmacological Relevance. Morus alba L. leaves (MAE) have been used in fork medicine for the treatment of beriberi, edema, diabetes, hypertension, and atherosclerosis. However, underlying mechanism of MAE on cardiovascular protection remains to be elucidated. Therefore, we investigated whether MAE affect platelet aggregation and thrombosis. Materials and Methods. The anti-platelet activity of MAE was studied using rat platelets. The extent of anti-platelet activity of MAE was assayed in collagen-induced platelet aggregation. ATP and serotonin release was carried out. The activation of integrin ?IIb?3 and phosphorylation of signaling molecules, including MAPK and Akt, were investigated with cytofluorometer and immunoblotting, respectively. The thrombus formation in vivo was also evaluated in arteriovenous shunt model of rats. Results. HPLC chromatographic analysis revealed that MAE contained rutin and isoquercetin. MAE dose-dependently inhibited collagen-induced platelet aggregation. MAE also attenuated serotonin secretion and thromboxane A2 formation. In addition, the extract in vivo activity showed that MAE at 100, 200, and 400?mg/kg significantly and dose-dependently attenuated thrombus formation in rat arterio-venous shunt model by 52.3% (P < 0.001), 28.3% (P < 0.01), and 19.1% (P < 0.05), respectively. Conclusions. MAE inhibit platelet activation, TXB2 formation, serotonin secretion, aggregation, and thrombus formation. The plant extract could be considered as a candidate to anti-platelet and antithrombotic agent. PMID:24701244

Rhee, Man Hee; Sung, Yoon-Young; Yang, Won-Kyung; Kim, Seung Hyung; Kim, Ho-Kyoung

2014-01-01

39

Characterization and expression profiles of MaACS and MaACO genes from mulberry (Morus alba L.)*  

PubMed Central

1-Aminocyclopropane-1-carboxylic acid synthase (ACS) and 1-aminocyclopropane-1-carboxylic acid oxidase (ACO) are encoded by multigene families and are involved in fruit ripening by catalyzing the production of ethylene throughout the development of fruit. However, there are no reports on ACS or ACO genes in mulberry, partly because of the limited molecular research background. In this study, we have obtained five ACS gene sequences and two ACO gene sequences from Morus Genome Database. Sequence alignment and phylogenetic analysis of MaACO1 and MaACO2 showed that their amino acids are conserved compared with ACO proteins from other species. MaACS1 and MaACS2 are type I, MaACS3 and MaACS4 are type II, and MaACS5 is type III, with different C-terminal sequences. Quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) expression analysis showed that the transcripts of MaACS genes were strongly expressed in fruit, and more weakly in other tissues. The expression of MaACO1 and MaACO2 showed different patterns in various mulberry tissues. MaACS and MaACO genes demonstrated two patterns throughout the development of mulberry fruit, and both of them were strongly up-regulated by abscisic acid (ABA) and ethephon. PMID:25001221

Liu, Chang-ying; L, Rui-hua; Li, Jun; Zhao, Ai-chun; Wang, Xi-ling; Diane, Umuhoza; Wang, Xiao-hong; Wang, Chuan-hong; Yu, Ya-sheng; Han, Shu-mei; Lu, Cheng; Yu, Mao-de

2014-01-01

40

Suppressive response of confections containing the extractive from leaves of Morus Alba on postprandial blood glucose and insulin in healthy human subjects  

PubMed Central

Background The first aim of this study was to clarify the effective ratio of extractive from leaves of Morus Alba (ELM) to sucrose so as to apply this knowledge to the preparation of confections that could effectively suppress the elevation of postprandial blood glucose and insulin. The second aim was to identify the efficacy of confections prepared with the optimally effective ratio determined from the first study, using healthy human subjects. Methods Ten healthy females (22.3 years, BMI 21.4 kg/m2) participated in this within-subject, repeated measures study. For the first aim of this study, the test solutions containing 30 g of sucrose and 1.2 or 3.0 g of ELM were repeatedly and randomly given to each subject. To identify the practically suppressive effects on postprandial blood glucose and insulin, some confections with added ELM were prepared as follows: Mizu-yokan, 30 g of sucrose with the addition of 1.5 or 3.0 g ELM; Daifuku-mochi, 9.0 g of starch in addition to 30 g of sucrose and 1.5 or 3.0 g ELM; Chiffon-cake, 24 g of sucrose, starch, and 3.0 or 6.0 g of ELM, and were ingested by each subject. Blood and end-expiration were collected at selected periods after test food ingestion. Results When 30 g of sucrose with 1.2 or 3.0 g of ELM were ingested by subjects, the elevations of postprandial blood glucose and insulin were effectively suppressed (p < 0.01), and the most effective ratio of ELM to sucrose was evaluated to be 1:10. AUC (area under the curve) of breath hydrogen excretion for 6 h after the ingestion of an added 3 g of ELM significantly increased (p < 0.01). When AUCs-3h of incremental blood glucose of confections without ELM was 100, that of Mizu-yokan and Daifuku-mochi with the ratio (1:10) of ELM to sucrose was decreased to 53.4 and 58.2, respectively. Chiffon-cake added one-fourth ELM was 29.0. Conclusion ELM-containing confections for which the ratio of ELM and sucrose is one-tenth effectively suppress the postprandial blood glucose and insulin by inhibiting the intestinal sucrase, thus creating a prebiotic effect. The development of confections with ELM can therefore contribute to the prevention and the quality of life for prediabetic and diabetic patients. PMID:19602243

Nakamura, Mariko; Nakamura, Sadako; Oku, Tsuneyuki

2009-01-01

41

Quantitative analysis of oxyresveratrol in different plant parts of Morus species and related Genera by HPTLC  

Technology Transfer Automated Retrieval System (TEKTRAN)

Four aromatic compounds; oxyresveratrol (1), mulberroside A (2), cudraflavone C (3) and kuwanone J (4) were isolated from the stems of Morus rubra L. The quantitative determination of oxyresveratrol from M. rubra L., M. alba L. and related genera by high performance thin layer chromatography (HPTLC)...

42

Chemical composition and antioxidant activity of certain Morus species  

PubMed Central

In the present work, the fruits of four Morus species, namely Morus alba (white mulberry), Morus nigra (black mulberry), Morus laevigata (large white fruit), and Morus laevigata (large black fruit), were analyzed for proximate composition, essential minerals, and antioxidant potentials. For this purpose, the ripe fruits were collected from the northern regions of Pakistan. The major nutritional components (moisture, ash, lipids, proteins, fibres, carbohydrates, and total sugar) were found to be in the suitable range along with good computed energy. Total dry weight, pH, and titratable acidity (percent citric acid) were (17.601.94)(21.972.34) mg/100 g, (3.200.07)(4.780.15), and (0.840.40)%(2.000.08)%, respectively. Low riboflavin (vitamin B2) and niacin (vitamin B3) contents were recorded in all the fruits, while ascorbic acid (vitamin C) was in the range from (15.201.25) to (17.031.71) mg/100 g fresh weight (FW). The mulberry fruits were rich with regard to the total phenol and alkaloid contents, having values of (8807.20)(165012.25) mg/100 g FW and (390.22)(6605.25) mg/100 g FW, respectively. Sufficient quantities of essential macro-(K, Ca, Mg, and Na) and micro-(Fe, Zn, and Ni) elements were found in all the fruits. K was the predominant element with concentration ranging from (12709.36) to (173111.50) mg/100 g, while Ca, Na, and Mg contents were (4403.21)(5767.37), (2603.86)(2803.50), and (243.51)(3604.20) mg/100 g, respectivly. The decreasing order of micro-minerals was Fe>Zn>Ni. The radical scavenging activity of methanolic extract of fruits was concentration-dependent and showed a correlation with total phenolic constituents of the respective fruits. Based on the results obtained, mulberry fruits were found to serve as a potential source of food diet and natural antioxidants. PMID:21121077

Imran, Mohammad; Khan, Hamayun; Shah, Mohibullah; Khan, Rasool; Khan, Faridullah

2010-01-01

43

Chemical composition and antioxidant activity of certain Morus species.  

PubMed

In the present work, the fruits of four Morus species, namely Morus alba (white mulberry), Morus nigra (black mulberry), Morus laevigata (large white fruit), and Morus laevigata (large black fruit), were analyzed for proximate composition, essential minerals, and antioxidant potentials. For this purpose, the ripe fruits were collected from the northern regions of Pakistan. The major nutritional components (moisture, ash, lipids, proteins, fibres, carbohydrates, and total sugar) were found to be in the suitable range along with good computed energy. Total dry weight, pH, and titratable acidity (percent citric acid) were (17.601.94)-(21.972.34) mg/100 g, (3.200.07)-(4.780.15), and (0.840.40)%-(2.000.08)%, respectively. Low riboflavin (vitamin B(2)) and niacin (vitamin B(3)) contents were recorded in all the fruits, while ascorbic acid (vitamin C) was in the range from (15.201.25) to (17.031.71) mg/100 g fresh weight (FW). The mulberry fruits were rich with regard to the total phenol and alkaloid contents, having values of (8807.20)-(165012.25) mg/100 g FW and (3903.22)-(6605.25) mg/100 g FW, respectively. Sufficient quantities of essential macro-(K, Ca, Mg, and Na) and micro-(Fe, Zn, and Ni) elements were found in all the fruits. K was the predominant element with concentration ranging from (12709.36) to (173111.50) mg/100 g, while Ca, Na, and Mg contents were (4403.21)-(5767.37), (2603.86)-(2803.50), and (2403.51)-(3604.20) mg/100 g, respectivly. The decreasing order of micro-minerals was Fe>Zn>Ni. The radical scavenging activity of methanolic extract of fruits was concentration-dependent and showed a correlation with total phenolic constituents of the respective fruits. Based on the results obtained, mulberry fruits were found to serve as a potential source of food diet and natural antioxidants. PMID:21121077

Imran, Mohammad; Khan, Hamayun; Shah, Mohibullah; Khan, Rasool; Khan, Faridullah

2010-12-01

44

Alba Patera  

NASA Technical Reports Server (NTRS)

A color image of the Alba Patera region of Mars; north toward top. The scene shows a central circular depression surrounded by splays of fractures, named Alba Fossae (west of Alba Patera) and Tantalus Fossae (east of Alba Patera). A patera (Latin for shallow dish or saucer) is a volcano of broad areal extent with little vertical relief; a fossa is a linear depression.

This image is a composite of Viking medium-resolution images in black and white and low-resolution images in color. The image extends from latitude 30 degrees N. to 50 degrees N. and from longitude 95 degrees to 125 degrees; Lambert projection.

Alba Patera has a 100-km-diameter caldera at its center surrounded by a fracture ring. In total, the approximately 1,200- km-diameter Alba Patera far exceeds any other known volcano in areal extent; it covers eight times the area of Olympus Mons (the highest volcano in the Solar System) but reaches only about 6 km in height. The patera lies directly north of the Tharsis bulge, which encompasses the most intensely and most recently active volcanic region of the planet. The fossae of the Alba area are fault-bound graben that can be traced south through the Tharsis bulge and therefore likely formed by upwarping of the Tharsis bulge as well as the coeval upwelling of Alba Pateria magma.

1997-01-01

45

Alba Patera  

NASA Technical Reports Server (NTRS)

28 December 2003 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) red wide angle image shows much of Alba Patera, a low, broad shield volcano in northern Tharsis. The caldera complex--the pits formed by collapse at the volcano summit -- is located toward the bottom center of this image. Alba Patera is located at 41oN, 111oW. The area shown here is approximately 430 km (270 mi) across and illuminated from the lower left.

2004-01-01

46

Proximate Composition and Antioxidant Potential of Leaves from Three Varieties of Mulberry (Morus sp.): A Comparative Study  

PubMed Central

In this study, leaves of three indigenous varieties of Mulberry namely, Morus alba L., Morus nigra L. and Morus rubra L. were investigated for their antioxidant potential and their proximate composition was determined. The yields of 80% methanolic extracts ranged between 8.2813.89%. The contents of total phenolics (TPC), total flavonoids (TFC) and ascorbic acid (AA) ranged between 16.2124.37 mg gallic acid equivalent (GAE)/g, 26.4131.28 mg rutin equivalent (RE)/g and 0.971.49 mg/g, respectively. The antioxidant activity of leaf extracts was evaluated by measuring 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging actity, 2,2?-azino-bis-(3-ethylbenzthiazoline-6-sulphonic acid (ABTS+) radical cation scavenging capacity and ferric ion reducing power and values ranged between 1.892.12, 6.129.89 and 0.560.97 mM Trolox equivalent/g of dried leaves, respectively. The investigated features reveal good nutritive and antioxidant attributes of all the varieties with mutually significant differences. PMID:22837655

Iqbal, Shahid; Younas, Umer; Sirajuddin; Chan, Kim Wei; Sarfraz, Raja Adil; Uddin, Kamal

2012-01-01

47

Phenolic acids profiling and antioxidant potential of mulberry (Morus laevigata W., Morus nigra L., Morus alba L.) leaves and fruits grown in Pakistan  

Technology Transfer Automated Retrieval System (TEKTRAN)

Mulberry trees are distributed throughout Pakistan. Besides the use of mulberry in forage and food for animals, it is also used as herbal medicine. The ojbective of this study was to determine phenolic acids profile, sugar content, and the antioxidant activity of the leaves and fruits of three mulb...

48

Development and characterization of microsatellite markers for Morus spp. and assessment of their transferability to other closely related species  

PubMed Central

Background Adoption of genomics based breeding has emerged as a promising approach for achieving comprehensive crop improvement. Such an approach is more relevant in the case of perennial species like mulberry. However, unavailability of genomic resources of co-dominant marker systems has been the major constraint for adopting molecular breeding to achieve genetic enhancement of Mulberry. The goal of this study was to develop and characterize a large number of locus specific genic and genomic SSR markers which can be effectively used for molecular characterization of mulberry species/genotypes. Result We analyzed a total of 3485 DNA sequences including genomic and expressed sequences (ESTs) of mulberry (Morus alba L.) genome. We identified 358 sequences to develop appropriate microsatellite primer pairs representing 222 genomic and 136 EST regions. Primers amplifying locus specific regions of Dudia white (a genotype of Morus alba L), were identified and 137 genomic and 51 genic SSR markers were standardized. A two pronged strategy was adopted to assess the applicability of these SSR markers using mulberry species and genotypes along with a few closely related species belonging to the family Moraceae viz., Ficus, Fig and Jackfruit. While 100% of these markers amplified specific loci on the mulberry genome, 79% were transferable to other related species indicating the robustness of these markers and the potential they hold in analyzing the molecular and genetic diversity among mulberry germplasm as well as other related species. The inherent ability of these markers in detecting heterozygosity combined with a high average polymorphic information content (PIC) of 0.559 ranging between 0.076 and 0.943 clearly demonstrates their potential as genomic resources in diversity analysis. The dissimilarity coefficient determined based on Neighbor joining method, revealed that the markers were successful in segregating the mulberry species, genotypes and other related species into distinct clusters. Conclusion We report a total of 188 genomic and genic SSR markers in Morus alba L. A large proportion of these markers (164) were polymorphic both among mulberry species and genotypes. A substantial number of these markers (149) were also transferable to other related species like Ficus, Fig and Jackfruit. The extent of polymorphism revealed and the ability to detect heterozygosity among the cross pollinated mulberry species and genotypes render these markers an invaluable genomic resource that can be utilized in assessing molecular diversity as well as in QTL mapping and subsequently mulberry crop improvement through MAS. PMID:24289047

2013-01-01

49

Statistical modeling of process parameters for the recovery of polysaccharide from Morus alba leaf.  

PubMed

A central composite rotatable design (CCRD) was used to evaluate the effects of extraction time, extraction temperature, particle size of mulberry leaf, number of extraction and water to the mulberry leaf ratio on extraction yield of mulberry leaf crude polysaccharides (MLCP). The response surface methodology (RSM) showed that the significant quadratic regression equation with high R(2) (=0.9782) was successfully fitted for extraction yield of MLCP as function of independent variables. The overall optimum region was found to be at the combined level of extraction time 5h, extraction temperature 85 C, particle size of mulberry leaf (mesh) 40, number of extraction 4 and water to mulberry leaf ratio 18. At this optimum point, extraction yield of MLCP was 12.00170.42%. No significant (p>0.05) difference was found between the actual and predicted (11.62860.19) values. The results demonstrated that MLCP had strong scavenging activities on DPPH and hydroxyl radicals. Overall, MLCP may have potential applications in the medical and food industries. PMID:23987414

Samavati, Vahid; Yarmand, Mohammad Saeed

2013-10-15

50

Prenylated arylbenzofuran derivatives from Morus mesozygia with antioxidant activity.  

PubMed

Five prenylated arylbenzofurans, moracins Q-U, were isolated from Morus mesozygia (Moraceae). Their structures were elucidated on the basis of spectroscopic evidence. Along with these compounds, 3beta-acetoxyurs-12-en-11-one, marsformoxide, moracin C, moracin M, moracin K, artocarpesin, cycloartocarpesin, morachalcone A were also isolated. Four of the five compounds, (moracins R-U) displayed potent antioxidant activity. PMID:19147162

Kapche, Gilbert D W F; Fozing, Christian D; Donfack, Jean H; Fotso, Ghislain W; Amadou, Dawe; Tchana, Angle N; Bezabih, Merhatibeb; Moundipa, Paul F; Ngadjui, Bonaventure T; Abegaz, Berhanu M

2009-01-01

51

Morphological and molecular variation of Morus laevigata in India.  

PubMed

Morus spp., commonly known as mulberry, is significantly associated with human civilization and spread of silk-culture from Asia to Europe, Africa and Latin America. One of its species, Morus laevigata, traditionally well known for its timber value, forage use and silkworm's feed, is widely distributed in India extending from Himalayan foothill to Andaman islands. The variability occurring for 12 morpho-biochemical parameters and RAPD profiles, generated with 13 selected RAPD primers, for M. laevigata accessions from six different zones were investigated. Analyses revealed high degree of genotypic similarity of collection from Himalayan foothill (West Bengal) with those from Andaman Islands. Specific accessions from central India and south India also revealed genotypic similarities with specific accessions from north-east India. These observations are discussed in the context of clonal propagation of mulberry and evolutionary perspective of dispersal of this species, through human activities PMID:15330113

Chatterjee, S N; Nagaraja, G M; Srivastava, P P; Naik, G

2004-06-01

52

Micropropagation of Morus laevigata Wall. from mature trees  

Microsoft Academic Search

Multiple shoots were obtained from nodal explants of 10-year-old tree of Morus laevigata on Murashige and Skoog's medium supplemented with different concentrations (0.55.0 mg.l-1) of benzyladenine (BA). Nodal segments taken from in vitro proliferated shoots gave further multiple shoots when cultured on the same basal medium containing 2.5 mg.l-1 BA. Repeated subculture resulted in rapid shoot multiplication at the average

M. Hossain; S. M. Rahman; A. Zaman; O. I. Joarder; R. Islam

1992-01-01

53

Alba Patera Valleys  

NASA Technical Reports Server (NTRS)

24 October 2004 The northwest flanks of the broad, northern Tharsis volcano, Alba Patera, have been known since the 1970s to exhibit a plethora of what appeared to be branching valley networks running down the volcano slopes. Some investigators suggested that these valleys were evidence for precipitation and runoff of liquid water on the volcano flanks. It was hoped that high resolution images from the Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) would provide new details that would confirm or refute the hypothesis. The problem is, MGS MOC images instead showed a surface largely covered by an eroded, rough-textured mantle that obscured the valley floors. The images, such as the one shown here, also showed that the valleys are discontinuous and indistinct when viewed at high resolution (although, when shrunk to fit within the reduced-scale view on this web page, they may seem continuous -- click on the image to view the full-scale picture). The valleys in the lower quarter of this image have been cut by a fault. This image is located on Alba Patera near 45.8oN, 111.8oW. The image covers an area about 3 km (1.9 mi) wide. Sunlight illuminates the scene from the lower left.

2004-01-01

54

Aithisg Bhliadhnail Coilltearachd na h-Alba  

E-print Network

Aithisg Bhliadhnail ?ghdarras Coilltearachd na h-Alba Lèirmheas Bliadhnail 2007-2008 #12;?ghdarras Coilltearachd na h-Alba Lèirmheas Bliadhnail 2007-08 1 | ?ghdarras Coilltearachd na h-Alba Lèirmheas Bliadhnail Chuairt Alba 22 Pàipearan-taice 26 #12;2 | ?ghdarras Coilltearachd na h-Alba Lèirmheas Bliadhnail 2007

55

Alba Patera Windstreaks  

NASA Technical Reports Server (NTRS)

[figure removed for brevity, see original site]

Windstreaks are features caused by the interaction of wind and topographic landforms. The raised rims and bowls of impact craters causes a complex interaction such that the wind vortex in the lee of the crater can both scour away the surface dust and deposit it back in the center of the lee. If you look closely, you will see evidence of this in a darker 'rim' enclosing a brighter interior.

These windstreaks are located northeast of Olympus Mons and southwest of Alba Patera. The lava flows the windstreaks occur on most likely originated from Alba Patera.

Image information: VIS instrument. Latitude 31.3, Longitude 235.1 East (124.9 West). 36 meter/pixel resolution.

Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.

NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.

2005-01-01

56

Alba Patera Collapse Pits  

NASA Technical Reports Server (NTRS)

[figure removed for brevity, see original site]

We will be looking at collapse pits for the next two weeks. Collapse pits on Mars are formed in several ways. In volcanic areas, channelized lava flows can form roofs which insulate the flowing lava. These features are termed lava tubes on Earth and are common features in basaltic flows. After the lava has drained, parts of the roof of the tube will collapse under its own weight. These collapse pits will only be as deep as the bottom of the original lava tube. Another type of collapse feature associated with volcanic areas arises when very large eruptions completely evacuate the magma chamber beneath the volcano. The weight of the volcano will cause the entire edifice to subside into the void space below it. Structural features including fractures and graben will form during the subsidence. Many times collapse pits will form within the graben. In addition to volcanic collapse pits, Mars has many collapse pits formed when volatiles (such as subsurface ice) are released from the surface layers. As the volatiles leave, the weight of the surrounding rock causes collapse pits to form.

These collapse pits are found within graben surrounding Alba Patera. Alba Patera is an old volcano that has subsided after it's magma chamber was evacuated.

Image information: VIS instrument. Latitude 43.1, Longitude 259.4 East (100.6 West). 19 meter/pixel resolution.

Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.

NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.

2004-01-01

57

Alba Patera Graben  

NASA Technical Reports Server (NTRS)

[figure removed for brevity, see original site]

This VIS image is on the southern flank of Alba Patera -- a large, old volcano. These graben likely formed as the volcano collaped into the empty magma chamber beneath the surface.

Image information: VIS instrument. Latitude 31.9, Longitude 251.4 East (108.6 West). 19 meter/pixel resolution.

Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.

NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.

2005-01-01

58

Abraham Lincoln Brigade Archive (ALBA)  

NSDL National Science Digital Library

Composed of North American volunteers, the Abraham Lincoln Brigade was one of several international brigades that fought on the side of the Republicans against Franco's fascist Nationalists in the Spanish Civil War (1936-9). The ALBA was founded in 1975 by the Veterans of the Abraham Lincoln Brigade (VALB) to preserve the history of the Brigade's actions in Spain and the post-war activities of its veterans in America. Part of ALBA's mission includes supervising the comprehensive archive of materials related to the North American involvement in the Spanish Civil War at Brandeis University. At the ALBA site, users will find exhibits of posters and photos brought back by volunteers; contact information for researchers interested in using the archive; a high school curriculum entitled "Between the World Wars," downloadable in .pdf format; a brief history of the VALB and recent issues of its journal, The Volunteer (in .pdf format); a discussion list; and related links.

59

Alba Patera Channels  

NASA Technical Reports Server (NTRS)

[figure removed for brevity, see original site]

Released 1 April 2004

The Odyssey spacecraft has completed a full Mars year of observations of the red planet. For the next several weeks the Image of the Day will look back over this first mars year. It will focus on four themes: 1) the poles - with the seasonal changes seen in the retreat and expansion of the caps; 2) craters - with a variety of morphologies relating to impact materials and later alteration, both infilling and exhumation; 3) channels - the clues to liquid surface flow; and 4) volcanic flow features. While some images have helped answer questions about the history of Mars, many have raised new questions that are still being investigated as Odyssey continues collecting data as it orbits Mars.

The channel shown on the image is near the feature called Alba Patera. It was collected August 22, 2002 during northern spring season. The local time is 4:30pm. The image shows multiple possibly liquid formed channels.

Image information: VIS instrument. Latitude 43.7, Longitude 241.5 East (118.5 West). 19 meter/pixel resolution.

Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.

NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.

2004-01-01

60

Alba Patera Collapse Pits  

NASA Technical Reports Server (NTRS)

[figure removed for brevity, see original site]

We will be looking at collapse pits for the next two weeks. Collapse pits on Mars are formed in several ways. In volcanic areas, channelized lava flows can form roofs which insulate the flowing lava. These features are termed lava tubes on Earth and are common features in basaltic flows. After the lava has drained, parts of the roof of the tube will collapse under its own weight. These collapse pits will only be as deep as the bottom of the original lava tube. Another type of collapse feature associated with volcanic areas arises when very large eruptions completely evacuate the magma chamber beneath the volcano. The weight of the volcano will cause the entire edifice to subside into the void space below it. Structural features including fractures and graben will form during the subsidence. Many times collapse pits will form within the graben. In addition to volcanic collapse pits, Mars has many collapse pits formed when volatiles (such as subsurface ice) are released from the surface layers. As the volatiles leave, the weight of the surrounding rock causes collapse pits to form.

This image of the Alba Patera region has both lava tube collapse pits (running generally east/west) and subsidence related collapse within structural grabens.

Image information: IR instrument. Latitude 26.9, Longitude 256.5 East (103.5 West). 100 meter/pixel resolution.

Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.

NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.

2004-01-01

61

Identification and Chacterization of new strains of Enterobacter spp. causing Mulberry (Morus alba) wilt disease in China  

Technology Transfer Automated Retrieval System (TEKTRAN)

A new mulberry wilt disease (MWD) was recently identified in Hangzhou, Zhejiang province, China. Typical symptoms of the disease are dark brown discolorations in vascular tissues, leaf wilt, defoliation, and tree decline. Unlike the bacterial wilt disease caused by Ralstonia solanacearum, the leaf w...

62

Quantitative Changes of Polyphenolic Compounds in Mulberry (Morus alba L.) Leaves in Relation to Varieties, Harvest Period, and Heat Processing.  

PubMed

Six polyphenolic compounds, such as chlorogenic acid (CA), rutin (RT), isoquercitrin (IQT), quercetin-3-O-(6-O-malonyl)-?-D-glucoside (QMG), astragalin (AG), kaempferol-3-O-(6-O-malonyl)-?-D-glucoside (KMG), were isolated from mulberry leaves by a series of isolation procedures, such as Diaion HP-20, silica-gel, Sephadex LH-20, and ODS-A column chromatographies. The chemical structures of the phenolic compounds were identified by UV and NMR spectral analyses. Levels of polyphenols in mulberry leaves from six different mulberry cultivars ranged from 1,042.16 to 1,871.97 mg% per dry weight; Guksang cultivar showed the highest levels of polyphenols, whereas Gaeryangdaehwa contained the least polyphenol contents. Generally, levels of polyphenols in mulberry leaves decreased with increasing harvest time, except for Yoolmok, but increased with heat processing time, except QMG and KMG. These results suggest that the heat processed mulberry leaves of Guksang cultivar harvested in early May can be potentially useful sources for production of high quality mulberry leaf teas. PMID:24471097

Lee, Won Jeong; Choi, Sang Won

2012-12-01

63

Quantitative Changes of Polyphenolic Compounds in Mulberry (Morus alba L.) Leaves in Relation to Varieties, Harvest Period, and Heat Processing  

PubMed Central

Six polyphenolic compounds, such as chlorogenic acid (CA), rutin (RT), isoquercitrin (IQT), quercetin-3-O-(6-O-malonyl)-?-D-glucoside (QMG), astragalin (AG), kaempferol-3-O-(6-O-malonyl)-?-D-glucoside (KMG), were isolated from mulberry leaves by a series of isolation procedures, such as Diaion HP-20, silica-gel, Sephadex LH-20, and ODS-A column chromatographies. The chemical structures of the phenolic compounds were identified by UV and NMR spectral analyses. Levels of polyphenols in mulberry leaves from six different mulberry cultivars ranged from 1,042.16 to 1,871.97 mg% per dry weight; Guksang cultivar showed the highest levels of polyphenols, whereas Gaeryangdaehwa contained the least polyphenol contents. Generally, levels of polyphenols in mulberry leaves decreased with increasing harvest time, except for Yoolmok, but increased with heat processing time, except QMG and KMG. These results suggest that the heat processed mulberry leaves of Guksang cultivar harvested in early May can be potentially useful sources for production of high quality mulberry leaf teas. PMID:24471097

Lee, Won Jeong; Choi, Sang Won

2012-01-01

64

VECKANSVXT Rd nckros (Nymphaea alba f. rosea)  

E-print Network

VECKANSV?XT Röd näckros (Nymphaea alba f. rosea) Fagertärns röda ros 1856 hittade uppsalastudenten B A Kjellmark i Tivedens djupa skogar en röd mutant av den vanliga vita näckrosen Nymphaea alba subsp. alba. Sen dess har den blommat i näckrosdammen i Botaniska trädgården. Tivedenfyndet har spridits

65

Major Martian Volcanoes from MOLA - Alba Patera  

NASA Technical Reports Server (NTRS)

Two views of Alba Patera with topography draped over a Viking image mosaic. MOLA data have clarified the relationship between fault location and topography on and surrounding the Alba construct, providing insight into the volcanological and geophysical processes that shaped the edifice. The vertical exaggeration is 10:1.

2000-01-01

66

INTERNATIONAL CONFERENCE OF TERRITORIAL INTELLIGENCE ALBA IULIA 2006  

E-print Network

INTERNATIONAL CONFERENCE OF TERRITORIAL INTELLIGENCE ALBA IULIA 2006 46 EVALUATION OF PROJECTS-based society. International Conference of Territorial Intelligence of Alba Iulia 2006 (CAENTI) | http of Territorial Intelligence, Alba Iulia, 2006, Alba Iulia : Romania (2006)" #12;PROCEEDINGS OF CAENTI 47

Paris-Sud XI, Université de

67

???????????????????????????????? ??? ??????????????? Study on Peel Morphology and Stomata of Mulberry (Morus spp.) Fruit  

Microsoft Academic Search

Mulberry (Morus spp.) can be grown well in temperate and tropical regions. The mulberry fruit contains 0.21% calcium, vitamin B 6 930 mg.\\/kg, and folic acid 6.87 mg\\/kg. The fruit is in high demand for the world market for fresh consumption and for producing wine. However, after harvest, mulberry fruit loses water quickly and disease occurs. It has a short

David W. Turner; Kasawan Phaphom; Naul-anong Narkkong; Sucharit Suanphairoch; Sathaporn Wongareonwanakit

2006-01-01

68

Diels-Alder adducts with PTP1B inhibition from Morus notabilis.  

PubMed

Eight Diels-Alder adducts, morbilisins A-H (1-8), a known analogue, chalcomoracin (9), together with eleven known flavonoids and 2-arylbenzofurans, were isolated from the leaves of Morus notabilis. Their structures were elucidated by extensive spectroscopic analysis, including 1D, 2D NMR, MS, and ECD data. Compounds 1, 5, and 7-9 showed inhibition against PTP1B phosphatase activity in vitro. PMID:25457492

Wang, Meng; Gao, Li-Xin; Wang, Jue; Li, Jing-Ya; Yu, Mei-Hua; Li, Jia; Hou, Ai-Jun

2015-01-01

69

Article original Les principaux types de sapinires (Abies alba Mill)  

E-print Network

Article original Les principaux types de sapinières (Abies alba Mill) dans le massif du Jura (Abies alba Mill) dans le Jura ont traversé une période de crise entre 1973 et 1982, due en grande partie croissance radiale des sapins. typologie des stations / phytoécologie / sapinière / Abies alba = sapin / Jura

Paris-Sud XI, Université de

70

Composite graben tectonics of Alba Patera on Mars  

Microsoft Academic Search

The Alba Patera main graben zone is radial to the Tharsis bulge, indicating the importance of the Tharsis bulge-related peripheral rift tectonics. The concentric grabens around the Alba Patera area are also partly caused by crustal bending due to the central load of the Alba Patera volcano. These two graben sets partly coincide forming composite structures. Both tectonic systems were

Jouko Raitala

1988-01-01

71

Polygenic eruptions on Alba Patera, Mars  

NASA Technical Reports Server (NTRS)

A new model for the evolution of the martian volcano Alba Patera is constructed. Numerous digitate channel networks on the flanks of the volcano are interpreted to be carved by sapping due to the release of nonjuvenile water from unconsolidated flank deposits. The particle size of these deposits is estimated to be 3-10 microns, which, together with theoretical modelling of the disperison of explosively derived volcanic materials, leads to the conclusion that the flank deposits on Alba Patera are low-relief pyroclastic flows. The recognition of numerous late-stage summit and subterminal lava flows thus makes Alba Patera a unique martian volcano that is transitional between the older pyroclastic-dominated highland paterae and the more recent effusive central-vent volcanoes such as the Tharsis Montes.

Mouginis-Mark, P. J.; Wilson, L.; Zimbelman, J. R.

1988-01-01

72

Alba is first heavy North Sea crude  

SciTech Connect

The development of the Alba oil field will constitute two North Sea firsts: the first Eocene reservoir developed, and the first development to handle heavy crude. The field was discovered in Block 16/26 of the North Sea's U.K. sector in 1984. The Alba field is in the heart of the North Sea, about midway between the northern fields of the East Shetlands basin and the southern Fulmar and Argyll fields. About 250 million bbl of the estimated 1 billion bbl reservoir of 20{degrees} gravity crude is believed recoverable.

Not Available

1991-05-27

73

SENSITIVITY OF NESTING GREAT EGRETS (ARDEA ALBA) AND WHITE IBISES (EUDOCIMUS ALBUS)  

E-print Network

de A. alba se mantuvo constante. La selección de modelos identificó a la lluvia, la profundidad del agua, la fecha juliana, el año y la biomasa de presas como los parámetros que más influenciaron las región, la fecha juliana, la profundidad del agua y la forma cuadrática de la tasa de recesión del agua

Gawlik, Dale E.

74

Terpenes from Artemisia herba-alba.  

PubMed

Chromatographic investigation of the methylene chloride/methanol extract of the aerial parts of Artemisia herba-alba afforded a new monoterpene dimer, in addition to a known monoterpene and three known sesquiterpene lactones. The structures of the compounds were determined by comprehensive NMR analyses, including DEPT, COSY, HMQC, HMBC, and HRMS. PMID:24459767

Mohamed, Abou El-Hamd H; Esmail, Abeer M; El-Saade, Adila M

2013-01-01

75

Heterotrophic Carbon Metabolism by Beggiatoa alba  

PubMed Central

The assimilation and metabolism of CO2 and acetate by Beggiatoa alba strain B18LD was investigated. Although B. alba was shown to require CO2 for growth, the addition of excess CO2 (as NaHCO3) to the medium in a closed system did not stimulate growth. Approximately 24 to 31% of the methyl-labeled acetate and 38 to 46% of the carboxyl-labeled acetate were oxidized to 14CO2 by B. alba. The apparent Vmax values for combined assimilation and oxidation of [2-14C]acetate by B. alba were 126 to 202 nmol min?1 mg of protein?1 under differing growth conditions. The Vmax values for CO2 assimilation by heterotrophic and mixotrophic cells were 106 and 131 pmol min?1 mg of protein?1, respectively. The low Vmax values for CO2 assimilation, coupled with the high Vmax values for acetate oxidation, suggested that the required CO2 was endogenously produced from acetate. Moreover, exogenously supplied acetate was required by B. alba for the fixation of CO2. From 61 to 73% of the [14C]acetate assimilated by washed trichomes was incorporated into lipid. Fifty-five percent of the assimilated [2-14C]acetate was incorporated into poly-?-hydroxybutyric acid. This was consistent with chemical data showing that 56% of the heterotrophic cell dry weight was poly-?-hydroxybutyric acid. Succinate and CO2 were incorporated into cell wall material, proteins, lipids, nucleic acids, and amino and organic acids, but not into poly-?-hydroxybutyric acid. Glutamate and succinate were the major stable products after short-term [1-14C]acetate assimilation. Glutamate and aspartate were the first stable 14CO2 fixation products, whereas glutamate, a phosphorylated compound, succinate, and aspartate were the major stable 14CO2 fixation products over a 30-min period. The CO2 fixation enzymes isocitrate dehydrogenase (nicotinamide adenine dinucleotide phosphate; reversed) and malate dehydrogenase (nicotinamide adenine dinucleotide phosphate; decarboxylating) were found in cell-free extracts of both mixotrophically grown and heterotrophically grown cells. The data indicate that the typical autotrophic CO2 fixation mechanisms are absent from B. alba B18LD and that the CO2 and acetate metabolism pathways are probably linked. PMID:6117547

Strohl, William R.; Cannon, Gordon C.; Shively, Jessup M.; Gde, Hans; Hook, Leonard A.; Lane, Candace M.; Larkin, John M.

1981-01-01

76

Volcanic flow development at Alba Patera, Mars  

SciTech Connect

On the Alba Patera volcanic shield of Mars, a Hesperian flood-lava phase was followed by the extrusion of sheet lavas and tube-fed lavas emerging in many cases from the flanking fissures of rising domes. These events were followed by the eruption of additional sheet and tube-fed lavas from linear vents which formed complex flow fields. Later, Amazonian volcanism at Alba involved long, narrow flows from two complex summit calderas; the thermal energy outflow for some individual flows would have been substantially greater than the annual heat loss of the earth through volcanism, implying that the process of patera-building represented substantial Martian geological heat-loss during the planet's early volcanic-centralization stages. 40 refs.

Cattermole, P. (Sheffield Univ. (England))

1990-02-01

77

Geomorphology and stratigraphy of Alba Patera, Mars  

NASA Technical Reports Server (NTRS)

Geomorphic and stratigraphic analysis of Alba Patera suggests a volcanic construct built by lavas with rheologic properties similar to basalts. A series of evolving eruptive styles is suggested by changes in morphology and inferred progressive reductions in flow volume with higher stratigraphic position. Alba Patera's volcanic history has been summarized into four main phases. The first is characterized by extensive flood like flows presumably erupted from fissures associated with the initial intrusion of magma into the region. The second phase is associated with the emplacement of pyroclastic rock, a more speculative interpretation. The third phase produced the voluminous tabular, crested, and undifferentiated flows, probably from a more centralized vent source. The fourth and last phase is marked the effusion of levee like flows and the collapse of the summit calderas and final graben formation.

Schneeberger, Dale M.; Pieri, David C.

1991-01-01

78

Meadowfoam: Pretty flowers, pretty possibilities. [Limnanthes alba  

SciTech Connect

This article describes the cultivation of oilseed plants that can be used to produce products such as industrial lubricants and polymers. Although native to the Pacific Northwest, the meadowfoam plant (Limnanthes alba) can be grown in mild climates where soil temperatures range from 40-60 degrees F. The greatest deterrent to commercialization is cost due to low yields (nutlets contain 20-30% oil). Plant scientists are working to increase the amount of seed oil yield per acre.

Bosisio, M.

1989-02-01

79

Highly oxygenated sesquiterpenes in Artemisia alba Turra.  

PubMed

Ten new sesquiterpene alcohols of which seven germacranes, a eudesmane, a guaiane and an oplopane were isolated from the aerial parts of Artemisia alba Turra. Their structures and relative stereochemistry were elucidated by spectral methods ((1)H and (13)C NMR, COSY, HSQC, HMBC, NOESY, and MS). In addition, the known 7-hydroxycadin-4-en-3-one, centaureidin and axillarin were found for the first time in the studied species. PMID:25541045

Todorova, Milka; Trendafilova, Antoaneta; Danova, Kalina; Simmons, Luke; Wolfram, Evelyn; Meier, Beat; Riedl, Rainer; Evstatieva, Luba

2015-02-01

80

Changes in the antioxidant enzyme efficacy in two high yielding genotypes of mulberry ( Morus alba L.) under NaCl salinity  

Microsoft Academic Search

Changes in the activity of antioxidant enzymes such as superoxide dismutase (SOD: EC 1.15.1.1), peroxidase (POD: EC 1.11.1.7), catalase (CAT: EC 1.11.1.6), glutathione reductase (GR: EC 1.6.4.2), glutathione S-transferase (GST: EC 2.5.1.18), cell membrane stability (CMS) and the rate of lipid peroxidation in terms of malondialdehyde (MDA) content in two high yielding genotypes (S1 and ATP, salt tolerant and salt

Chinta Sudhakar; A Lakshmi; S Giridarakumar

2001-01-01

81

Biochemical responses to drought stress in mulberry ( Morus alba L.): evaluation of proline, glycine betaine and abscisic acid accumulation in five cultivars  

Microsoft Academic Search

Five popularly grown mulberry cultivars (K-2, MR-2, TR-10, BC2-59 and S-13) were subjected to drought stress by withholding\\u000a irrigation, to obtain leaf water potentials (?w) ranging from ?0.75, ?1.50 and ?2.25MPa. Accumulation of proline, glycine betaine and abscisic acid (ABA) were quantified\\u000a in control and water stressed mulberry leaves. The activities of enzymes involved in proline accumulation including glutamate\\u000a dehydrogenase

Kolluru Viswanatha Chaitanya; Girish Kumar Rasineni; Attipalli Ramachandra Reddy

2009-01-01

82

Influence of arbuscular mycorrhizae on growth, leaf yield and phosphorus uptake in mulberry (Morus alba L.) under rainfed, lateritic soil conditions  

Microsoft Academic Search

A field experiment was conducted to study the effect of arbuscular mycorrhizal association in mulberry saplings var. S1, together with two levels of phosphate, on growth characters, leaf yield and phosphorus uptake. The experiment was conducted\\u000a in the period 1995 to 1997 at the Technical Service Centre, Kashipur, Purulia (West Bengal) under rainfed, lateritic soil\\u000a conditions. Pooled data analysis revealed

G. C. Setua; R. Kar; J. K. Ghosh; K. K. Das; S. K. Sen

1999-01-01

83

Screening of tree leaves as annual renewable green biomass for phenol oxidase production and biochemical characterization of mulberry ( Morus alba ) leaf phenol oxidases  

Microsoft Academic Search

Fruit tree leaf tissues were screened in a search for determination of an alternative source(s) for commercial phenol oxidase\\u000a (PO) production considering the importance of utilization of green biomass for production of value-added products. Mulberry,\\u000a pear, sour cherry and apricot leaves were identified as promising PO production sources, due to their comparable enzyme activities\\u000a with respect to mushroom (Agaricus bisporus),

Didem Sutay Kocabas; Zumrut Begum Ogel; Ufuk Bakir

2011-01-01

84

Anti-diabetic effect of ramulus mori polysaccharides, isolated from Morus alba L., on STZ-diabetic mice through blocking inflammatory response and attenuating oxidative stress.  

PubMed

Diabetes mellitus is a clinically complex disease characterized by the dysfunctions of pancreas. In this study, we investigated the therapeutic effects of ramulus mori polysaccharides (RMP) on diabetic mice induced by streptozotocin. Our results showed that body weight and insulin level were notably increased after metformin and RMP treatments, while the blood glucose was lowered. HE-staining assay showed that the treatments mitigated the pathological lesions in pancreas tissue. In addition, the expression levels of tumor necrosis factor-? (TNF-?), interleukin-8 (IL-8), interleukin-6 (IL-6) and cyclo-oxygenase-2 (COX-2) were effectively reduced in pancreas tissue by the treatments, respectively. We also found that upon these treatments, the activities of manganese superoxide dismutase (MnSOD) and glutathione reductase (GSH-Rd) were increased; the content of malonaldehyde (MDA) was decreased in pancreas tissue; and the mRNA expression of heme oxygenase-1 (HO-1) was markedly increased in pancreas tissue. Taken together, these results suggest that RMP plays the blood glucose-lowering and metabolism-normalizing roles, and it may improve the function of pancreas through inhibiting the inflammatory response and attenuating the oxidative stress in pancreas tissue. PMID:23566811

Guo, Chao; Li, Rong; Zheng, Ni; Xu, Lingyuan; Liang, Tao; He, Qiaoling

2013-05-01

85

The Alba ray tracing code: ART  

NASA Astrophysics Data System (ADS)

The Alba ray tracing code (ART) is a suite of Matlab functions and tools for the ray tracing simulation of x-ray beamlines. The code is structured in different layers, which allow its usage as part of optimization routines as well as an easy control from a graphical user interface. Additional tools for slope error handling and for grating efficiency calculations are also included. Generic characteristics of ART include the accumulation of rays to improve statistics without memory limitations, and still providing normalized values of flux and resolution in physically meaningful units.

Nicolas, Josep; Barla, Alessandro; Juanhuix, Jordi

2013-09-01

86

Predicting ultimate methane yields of Jatropha curcus and Morus indica from their chemical composition.  

PubMed

In this study, all the components of Jatropha curcus and Morus indica were chemically characterized and their biochemical methane potentials (BMP) were determined. From the variables that showed strong influence on the ultimate methane yield (B(o)) of J. curcus, a multiple regression Jatropha model was developed. This model comprised of total carbohydrates, protein, lipid, acid-detergent fiber (ADF), cellulose and ash in ADF as independent variables, with r(2) value of 0.943. The Jatropha model was validated on 7 samples of M. indica parts and wastes from silkworm rearing trays of this study and 13 samples of heterogeneous organic wastes of earlier studies, to judge the prediction quality. It was found that most of the predicted values differed by less than 15% of their experimental B(o). PMID:19286374

Gunaseelan, V Nallathambi

2009-07-01

87

Chaenomeles japonica, Cornus mas, Morus nigra fruits characteristics and their processing potential.  

PubMed

The aim of this study was to determine the suitability of Japanese quince (Chaenomeles japonica), cornelian cherry (Cornus mas) and black mulberry (Morus nigra) fruits as raw materials for processing. All analyzed fruits were characterized by high antioxidant activity and total phenolic content. Fruits of Japanese quince and cornelian cherry had also high acidity. Products such as fruit wines and liquors were prepared from the tested fruits. In respect of soluble solid content and reducing sugars content the obtained wine should be classified as dry wines. All analyzed liquors were characterized by similar alcohol content and the soluble solid content. Moreover, liquors made from Japanese quince and cornelian cherry were characterized by high total acidity and antioxidant capacity. The results of sensory analysis showed high commercial potential of the examined fruits. PMID:25477663

Tarko, Tomasz; Duda-Chodak, Aleksandra; Satora, Pawe?; Sroka, Pawe?; Pogo?, Piotr; Machalica, Justyna

2014-12-01

88

Baltojo gluosnio (Salix alba L.) vidur?ini? takson? ir hibrido (Salix fragilis x Salix alba ssp. alba) klon? morfobiologin?s savyb?s ir produktyvumo ?vertinimas.  

E-print Network

??Magistro darbe apibendrinti kai kuri? Alytaus UAB Vilda gamybin?se plantacijose auginam? baltojo gluosnio (Salix alba L.) takson? klon? 2004-2008 metais atlikt? morfobiologini? ir produktyvumo tyrim? (more)

Chodorovi?,; Graina

2009-01-01

89

REGION, IDENTITY AND SUSTAINABLE DEVELOPMENT ALBA COUNTY: TOWARDS A BALANCED DEVELOPMENT OF THE  

E-print Network

PAPERS ON REGION, IDENTITY AND SUSTAINABLE DEVELOPMENT 103 ALBA COUNTY: TOWARDS A BALANCED@cjalba.ro, Tél: 0743098487 Professional address Alba County Council, 1, I.I.C. Bratianu Square ­ R-ALBA IULIA of the Alba County, as a major opportunity for future development. As the formulation of the development

Paris-Sud XI, Université de

90

Structure of Alba: an archaeal chromatin protein modulated by acetylation  

PubMed Central

Eukaryotic DNA is packaged into nucleosomes that regulate the accessibility of the genome to replication, transcription and repair factors. Chromatin accessibility is controlled by histone modifications including acetylation and methylation. Archaea possess eukary otic-like machineries for DNA replication, transcription and information processing. The conserved archaeal DNA binding protein Alba (formerly Sso10b) interacts with the silencing protein Sir2, which regulates Albas DNA binding affinity by deacetylation of a lysine residue. We present the crystal structure of Alba from Sulfolobus solfataricus at 2.6? resolution (PDB code 1h0x). The fold is reminiscent of the N-terminal DNA binding domain of DNaseI and the C-terminal domain of initiation factor IF3. The Alba dimer has two extended ?-hairpins flanking a central body containing the acetylated lysine, Lys16, suggesting three main points of contact with the DNA. Fluorescence, calorimetry and electrophoresis data suggest a final binding stoichiometry of ?5bp DNA per Alba dimer. We present a model for the AlbaDNA interaction consistent with the available structural, biophysical and electron microscopy data. PMID:12198167

Wardleworth, B.N.; Russell, R.J.M.; Bell, S.D.; Taylor, G.L.; White, M.F.

2002-01-01

91

Prediction of the Physicochemical Properties of Spray-Dried Black Mulberry ( Morus nigra ) Juice using Artificial Neural Networks  

Microsoft Academic Search

An artificial neural network (ANN) was developed to predict quality changes of spray-dried black mulberry (Morus nigra) powder. In this study, the effects of inlet-air temperature (110, 130, and 150C), compressed air flow rate (400, 600,\\u000a and 800L\\/h), and concentration of different carrier types such as 6, 9, and 20 dextrose equivalent maltodextrins, and Arabic\\u000a gum (8, 12, and 16%),

Mahboubeh Fazaeli; Zahra Emam-Djomeh; Mahmoud Omid; Ahmad Kalbasi-Ashtari

92

In vitro regeneration of Basella alba L  

NASA Technical Reports Server (NTRS)

Basella alba L. is a tropical vine used as a vegetable in some Asian and African countries. It has potential as a nontraditional crop for small family farms. A short day plant, it blooms during the fall, provided the temperatures are mild. In the southeastern U.S., the short days of fall are associated with subfreezing temperatures, and plants are killed before blooming. Attempts were made to regenerate the plant using tissue culture techniques. Several trials were conducted with different media, hormones, and explants. It was found that nodal segments on Gamborg medium regenerated shoots. Interaction studies of auxins and cytokinins indicated that its endogeneous auxin content might be high because callus proliferated in almost all treatments and roots initiated even when the medium was not supplemented with an auxin.

Edney, Norris Allen; Rizvi, Muhammad A.; Rizvi, Narjis F.

1989-01-01

93

[Experience of using phytopreparation Alba (root extract of the Potentilla alba) in complex treatment of thyroid pathology in children and adolescents].  

PubMed

This article presents the background for including phytopreparation Alba (root extract of the Potentilla alba) into complex treatment of thyroid pathology. The findings confirm visible reduction of size of the thyroid gland and normalizing its functions in children and adults with the thyroid gland with normal or enhanced function treated by Alba per oral. PMID:25286612

Turchaninova, L I

2014-01-01

94

Voltammetric determination of antioxidant character in Berberis lycium Royel, Zanthoxylum armatum and Morus nigra Linn plants.  

PubMed

The antioxidant activity potential of three different plant extracts was investigated against superoxide anion radical while employing cyclic voltammetry technique. The plants Berberis lyceum Royle, Morus nigra Linn and Zanthoxylum armatum were selected because of their potential use in the traditional medicine. The voltammetric response of the electrochemically generated superoxide anion radial in DMSO was monitored in the absence and presence of the plat extracts. The decrease in the current was interpreted in terms of antiradical activity of the added extract. The thermodynamic feasibility of the radical scavenging by extracts was accounted in terms of antioxidant activity coefficient (K(ao)) and standard Gibbs free energy (?G(o)). The values of K(ao) and ?G(o) ranged from 1.0 x 102 to 57 x 102 L(-1) and -18 to -27 kJmol(-1), respectively. The possible mechanism of the antioxidant reaction was regarded as E(r)C(i) mechanism i.e. reversible electron transfer followed by hydrogen atom transfer- an irreversible chemical reaction. PMID:22713934

Ahmed, Safeer; Shakeel, Faria

2012-07-01

95

Micropropagation of a fruit tree, Morus australis Poir. syn. M. acidosa Griff.  

PubMed

High frequency bud break and multiple shoots were induced in nodal explants collected between November to February from a 5 year old tree of Morus australis Poir syn. M. acidosa Griff. on Murashige and Skoog's medium supplemented with 6-benzylaminopurine (1.0 mg/1). Incorporation of gibberellic acid (0.3 mg/l) along with BAP (1.0 mg/l) not only induced faster bud break from nodal explants as well as from apical shoot buds, but it also enhanced the frequency of bud break. Nodal explants were more responsive than apical shoot buds. The shoots formed in vitro were multiplied further as nodal segments, and an average multiplication rate of 6-fold per subculture was established within 4-5 months. The shoots were successfully rooted on half-strength MS containing a combination of indole-3-acetic acid, indole-3-butyric acid and indole-3-propionic acid, each at 1.0 mg/1. The plantlets were successfully hardened off and established in natural soil. PMID:24178221

Pattnaik, S K; Sahoo, Y; Chand, P K

1996-08-01

96

Special issue: Bio-inspired algorithms with structured populations Bernabe Dorronsoro Enrique Alba  

E-print Network

· Enrique Alba ? Springer-Verlag Berlin Heidelberg 2013 The advantages of using structured populations of the B. Dorronsoro University of Lille, Lille, France e-mail: bernabe.dorronsoro_diaz@inria.fr E. Alba

Paris-Sud XI, Université de

97

Bayesian Forecasting Methods for Short Time Series by Enrique de Alba and Manuel Mendoza  

E-print Network

1 Bayesian Forecasting Methods for Short Time Series by Enrique de Alba and Manuel Mendoza Preview This article by Enrique de Alba and Manuel Mendoza extends Foresight's coverage of approaches to forecasting

Mendoza Ramírez, Manuel

98

Zbornik gozdarstva in lesarstva 78, s. 57 -68 GDK: 182:174.4 Abies alba (046)  

E-print Network

Zbornik gozdarstva in lesarstva 78, s. 57 - 68 GDK: 182:174.4 Abies alba (046) Prispelo / Recived SEZONSKA DINAMIKA KSILOGENEZE IN FLOEMOGENEZE PRI NAVADNI JELKI (Abies alba Mill.) Jozica GRI AR1 , Primoz prirastnega plas a oz. branike pri navadni jelki (Abies alba) v rastni sezoni 2003. Vzorce floema, kambija

Cufar, Katarina

99

J. nigra Q. alba Q. rubra P. serotina Figure 3. Tree density (stems ha-1) by  

E-print Network

519 388 219 175 J. nigra Q. alba Q. rubra P. serotina Figure 3. Tree density (stems ha-1 walnut (Juglans nigra L.), white oak (Quercus alba L.), and northern red oak (Q. rubra L.) have 100 Survival(%) J. nigra Q. alba Q. rubra P. serotina Figure 4. Survival (% ± SE) by species

100

PC / WP4T / Alba Iulia / 19-20 Septembre 2006 TERRITORY AND TERRITORIALIZATION  

E-print Network

PC / WP4T / Alba Iulia / 19-20 Septembre 2006 CAENTI WP4T TERRITORY AND TERRITORIALIZATION: PRESENT STATE OF THE CAENTI THOUGHT Alba Iulia ROMANIA September, the 19th and 20th 2006 Pierre CHAMPOLLION IA'Ecole Normale F-26000 Valence halshs-00999026,version1- #12;PC / WP4T / Alba Iulia / 19-20 Septembre 2006

Boyer, Edmond

101

WHOLE-STEM WATER RELTIONS IN WHITE OAK (QUERCUS ALBA L.) CAROL ELAINE GORANSON  

E-print Network

WHOLE-STEM WATER RELTIONS IN WHITE OAK (QUERCUS ALBA L.) by CAROL ELAINE GORANSON (Under alba (L.)) using automated TDR probes, and related the results to tree water use, measured using sap, and heartwood water content was monitored from June 2004 to May 2005. Q. alba heartwood had daily and seasonal

Teskey, Robert O.

102

European conference, 22-24 sept 2006 Alba Julia, Romania, EU  

E-print Network

European conference, 22-24 sept 2006 Alba Julia, Romania, EU Coordinated Action of European Network-Var (Bertacchini@univ-tln.fr) #12;European conference, 22-24 sept 2006 Alba Julia, Romania, EU Coordinated Action. #12;European conference, 22-24 sept 2006 Alba Julia, Romania, EU Coordinated Action of European

Paris-Sud XI, Université de

103

Uniaxial and biaxial mechanical properties of porcine linea alba.  

PubMed

Incisional hernia is a severe complication post-laparoscopic/laparotomy surgery that is commonly associated with the linea alba. However, the few studies on the mechanical properties of the linea alba in the literature appear contradictory, possible due to challenges with the physical dimensions of samples and variations in protocol. This study focuses on the tensile mechanical characterisation of the porcine linea alba, as determined by uniaxial and equi-load biaxial testing using image-based strain measurement methods. Results show that the linea alba demonstrated a non-linear elastic, anisotropic behaviour which is often observed in biological soft tissues. The transverse direction (parallel to fibres) was found to be approximately eight times stiffer than the longitudinal (cross-fibre) direction under both uniaxial and equi-load biaxial loading. The equi-load biaxial tensile tests revealed that contraction could occur in the transverse direction despite increasing load, probably due to the anisotropy of the tissue. Optical surface marker tracking and digital image correlation methods were found to greatly improve the accuracy of stretch measurement, resulting in a 75% change in the apparent stiffness compared to using strain derived from machine cross-head displacement. Additionally, a finite element model of the experiments using a combination of an Ogden and fibre exponential power law model for the linea alba was implemented to quantify the effect of clamping and tissue dimensions (which are suboptimal for tensile testing) on the results. The preliminary model results were used to apply a correction factor to the uniaxial experimental data prior to inverse optimisation to derive best fit material parameters for the fibre reinforced Ogden model. Application of the model to the equi-load biaxial case showed some differences compared to the experimental data, suggesting a more complex anisotropic model may be necessary to capture biaxial behaviour. These results provide an improved assessment of the mechanical properties of the porcine linea alba for wound closure and other studies. PMID:25460404

Cooney, Gerard M; Moerman, Kevin M; Takaza, Michael; Winter, Des C; Simms, Ciaran K

2015-01-01

104

Seasonal ultrastructural alterations in the plasma membrane produced by slow freezing in cortical tissues of mulberry ( Morus bombyciz Koidz. cv. Goroji)  

Microsoft Academic Search

Seasonal alterations in the ultrastructure of the plasma membrane produced by slow freezing were examined in cortical parenchyma cells of mulberry twigs (Morus bombyciz Koidz. cv. Goroji) grown in northern Japan. In freezing-sensitive summer, freezing produced distinct aparticulate domains with accompanying inverted hexagonalII (HII) phase transitions in the plasma membrane. In autumn and spring, during cold acclimation and deacclimation, freezing

Scizo Fujikawa

1994-01-01

105

Artemisia herba alba: a popular plant with potential medicinal properties.  

PubMed

Artemisia herba alba (Asteraceae), commonly known as desert or white wormwood, is used in folk medicine for treatment of various diseases. Phytochemical studies of this plant revealed the existence of many beneficial compounds such as herbalbin, cis-chryanthenyl acetate, flavonoids (hispidulin and cirsilineol), monoterpenes, sesquiterpene. The aerial parts are characterized by a very low degree of toxicity. This study reviews the main reports of the pharmacological and toxicological properties of Artemisia herba alba in addition to the main constituents. It would appear that this plant exhibits many beneficial properties. Further studies are warranted to more integrate this popular plant in human health care system. PMID:23755405

Moufid, Abderrahmane; Eddouks, Mohamed

2012-12-15

106

Possible origin of some channels on Alba Patera, Mars  

NASA Technical Reports Server (NTRS)

Several alternative models were proposed for the origin and mode of formation of channels and valley networks on Martian volcanoes, notably Hecates Tholus, Ceraunius Tholus, and Alba Patera. Early interpretations of Mariner 9 and Viking images suggested that these features on Alba were lava channels, while those on Ceraunius Tholus were interpreted as fluvial or volcanic debris channels. Subsequent mapping of Tyrrehna Patera and Hecate Tholus has suggested that pyroclastic activity may have characterized eruptions on these volcanoes, and that at least for Hecates the channels were probably formed by fluvial erosion of unconsolidated ash deposits on the flanks of the volcano. As part of a continuing program to better understand the eruptive history of the young volcanic centers on Mars, numerous channels were identified on the flanks of Alba Patera that resemble the channels on Hecates. As a result, the possibility is being explored that some of the small channels on the flanks of Alba Patera may be fluvial in origin and potentail water sources and modes of formation are being explored.

Postawko, S. E.; Mouginis-Mark, P.

1987-01-01

107

Volcanic input to the atmosphere from Alba Patera on Mars  

NASA Technical Reports Server (NTRS)

Estimates are presented of the amount of water vapor and/or CO2 released from specific volcanic deposits on a relatively young Martian volcanic construct, Alba Patera. Estimates for the corresponding release rates are also given. Values for the constraints on water-supply-driving eruptions are presented and discussed.

Wilson, Lionel; Mouginis-Mark, Peter J.

1987-01-01

108

an interview with Richard Alba Extraordinary Lives: Patti Smith  

E-print Network

When racial boundaries fade an interview with Richard Alba Extraordinary Lives: Patti Smith What on the workforce, the family, and American society. EXTRAORDINARY LIVES: PATTI SMITH 12 This was the first featured the maximally talented Patti Smith--singer, songwriter, artist and poet--who spoke thoughtfully

Dennehy, John

109

Onion and weed response to mustard (Sinapis alba) seed meal  

Technology Transfer Automated Retrieval System (TEKTRAN)

Weed control in organic onion production is often difficult and expensive, requiring numerous cultivations and extensive hand-weeding. Onion safety and weed control with mustard seed meal (MSM) derived from Sinapis alba was evaluated in greenhouse and field trials. MSM applied at 110, 220, and 440 g...

110

Royal Institute of Technology AlbaNova University Center  

E-print Network

Royal Institute of Technology AlbaNova University Center SE-106 91 Stockholm Sweden www.biotech-?ke Nygren (perake@biotech.kth.se) Specific targeting. Based on selected affibody proteins, reagents implications on the design of future libraries (6). Prof. Per-?ke Nygren (perake@biotech.kth.se) Rational

Lagergren, Jens

111

Royal Institute of Technology AlbaNova University Center  

E-print Network

Royal Institute of Technology AlbaNova University Center SE-106 91 Stockholm Sweden www.biotech differentially expressed genes. Head of Department: Prof. Joakim Lundeberg (joakim.lundeberg@biotech developed based on in-house magnetic bead technology. Prof. Joakim Lundeberg (joakim.lundeberg@biotech

Lagergren, Jens

112

Royal Institute of Technology AlbaNova University Center  

E-print Network

Royal Institute of Technology AlbaNova University Center SE-106 91 Stockholm Sweden www.biotech of micro and nanotechnologies for biotech applications. Nanobiotechnology is an emerging discipline as other internal and external research groups. Associate Prof. Helene Andersson Svahn (helenea@biotech

Lagergren, Jens

113

Royal Institute of Technology AlbaNova University Center  

E-print Network

Royal Institute of Technology AlbaNova University Center SE-106 91 Stockholm Sweden www.biotech for Antibody Proteomics. Mol Cell Proteomics. 6(1):125-132. Prof Mathias Uhlen (mathias@biotech.kth.se) Antibody-based proteomics 12 persons, including 4 graduate students Assoc prof Sophia Hober (sophia@biotech

Lagergren, Jens

114

Circumferential graben and the structural evolution of Alba Mons, Mars  

NASA Astrophysics Data System (ADS)

Alba Mons is a unique, very extensive but shallow volcanotectonic construct in northern Tharsis, Mars. Numerous models have been presented to explain the formation of Alba Mons and its most characteristic feature, a wristwatch-like pattern of radial and circumferential graben. We used a wide selection of topographic datasets to characterize the fault throw variation on nine topographic transects across the circumferential graben in order to provide observational constraints for the different formation models, and to gain further insight into the evolution of Alba Mons. In most of the transects, summed throws from outwards-facing (away from the center of the volcano) faults are larger than from the inwards-facing (towards the center) ones. Only the very gently sloping western transects show the opposite, emphasizing the east-west-asymmetry of Alba Mons. 10-40% of the observed topographic relief of Alba Mons along the nine transects can be accounted for by this throw difference between the inwards- and outwards-facing faults. These results are consistent with predictions of models suggesting an uplift mechanism to explain the formation of the circumferential graben, but not with models invoking central subsidence. Horizontal extensional strain along the transects varies between 0.5% and 2%, consistent with strain predictions of the late-stage sill complex inflation model of McGovern et al. (McGovern, P.J., Solomon, S.C., Head J.W. III, Smith, D.E., Zuber M.T., Neumann, G.A. [2001]. J. Geophys. Res. 106(E10), 23769-23809).

hman, Teemu; McGovern, Patrick J.

2014-05-01

115

State Arboretum of Virginia at Blandy Experimental Farm Alien Invasive Landscape Plants in Virginia  

E-print Network

calleryana Callery, Ornamental or Bradford Pear Quercus acutissima Sawtooth Oak Salix alba White Willow Ulmus Chinaberry Morus alba White Mulberry Phellodendron amurense Amur Corktree Populus alba White Poplar Pyrus

Acton, Scott

116

International Conference of Territorial Intelligence of Alba Iulia 2006 (CAENTI) | http://www.territorial-intelligence.eu halshs-00531457,version1-26Jun2014  

E-print Network

International Conference of Territorial Intelligence of Alba Iulia 2006 (CAENTI) | http International Conference of Territorial Intelligence ALBA IULIA 2006 Volume 1 Papers on REGION, IDENTITY AND SUSTAINABLE DEVELOPMENT AETERNITAS PUBLISHING HOUSE ALBA IULIA International Conference of Territorial

Boyer, Edmond

117

Article original Vitalit actuelle et passe du sapin (Abies alba Mill)  

E-print Network

Article original Vitalité actuelle et passée du sapin (Abies alba Mill) dans le Jura. ?tude) Résumé ? la suite des travaux sur le dépérissement du sapin (Abies alba Mill) dans les Vosges'expression des phénomènes de dépérisement. dépérissement / dendrochronologie / climat / Abies alba / Jura Summary

Paris-Sud XI, Université de

118

Genetic variation and putative hybridization in Salix alba and S. fragilis ( Salicaceae ): Evidence from allozyme data  

Microsoft Academic Search

Genetic variability was estimated by enzyme electrophoresis in 239 Belgian clones from theSalix alba-S. fragilis complex. This morphological complex suggested a high frequency of hybrids. To test this hypothesis, the clones were pooled as a single co-adapted species complex and secondly as belonging to either species, i.e. beingS. alba-like orS. fragilis-like. The standard genetic variability measures showed higher values for

L. Triest; B. Greef; S. Vermeersch; J. Slycken; E. Coart

1999-01-01

119

Chevron moves toward first oil from Alba in 1994  

SciTech Connect

This paper reports on a number of interesting technical challenges which have been tackled in the continuing development of Chevron UK Ltd.'s Alba field, located in Block 16/26 on the UKCS, 130 miles NE of Aberdeen. The reservoir, discovered by Chevron in 1984, contains some 370 MMbbl of recoverable oil reserves in shallow Eocene sands at about 6,000-ft depth. Alba crude has an API gravity of 19-20[degrees], making it highly viscous and heavier and thicker than any oil yet produced in the UKCS. This, together with unusual reservoir properties, means that leading-edge technology must be employed to develop and produce the reservoir. Special techniques that the operator will use to drill shallow, highly deviated template wells, install long gravel pack screens in the deviated holes and cope with some expected sand production in surface fluid handling equipment are described here.

Not Available

1992-12-01

120

Mining area environmental mercury assessment using Abias alba  

SciTech Connect

Several Hg biomonitors are used for environmental mercury assessment in mining areas. Among these, lichens are those most studied but other vegetal organisms are also employed, such as brooms, pine needles, and many other species. This paper reports the results of a mercury assessment at Mt. Amiata (Italy) based on the metal concentration in needles of Abies alba. Mt. Amiata is an area of Tuscany characterized by the presence of cinnabar deposits. The mercury extraction activity was ended in 1975, but the environment is still contaminated by the metal. Albies alba is a widespread conifer tree in Italy whose needles live about fourteen years. It is present not only in the woods but also in many parks and gardens. 11 refs., 2 figs., 1 tab.

Barghigiani, C.; Bauleo, R. [Institute of Biophysics, Pisa (Italy)

1992-07-01

121

Fractal geometry of some Martian lava flow margins: Alba Patera  

NASA Technical Reports Server (NTRS)

Fractal dimension for a few lava flow margins on the gently sloping flanks of Alba Patera were measured using the structured walk method. Fractal behavior was observed at scales ranging from 20 to 100 pixels. The upper limit of the linear part of log(margin length) vs. log(scale) profile correlated well to the margin length. The lower limit depended on resolution and flow properties.

Kauhanen, K.

1993-01-01

122

Mapping of volcanic units at Alba Patera, Mars  

NASA Technical Reports Server (NTRS)

Detailed photogeologic mapping of Alba Patera, Northern Tharsis, was completed and a geologic map prepared. This was supplemented by a series of detailed volcanic flow maps and used to study the morphometry of different flow types and analyze the way in which the behavior of the volcano has changed with time and also the manner in which flow fields developed in different sectors of the structure.

Cattermole, Peter

1987-01-01

123

Cadmium accumulation and tolerance in Populus nigra and Salix alba  

Microsoft Academic Search

Rooted cuttings of Populus nigra L. clone Poli and Salix alba L. clone SS5 were treated for three weeks with 50 ?M CdSO4 in nutrient solution. The willow showed a far higher Cd tolerance, expressed as tolerance index (Ti), than the poplar in\\u000a both roots and leaves. The root Cd content was higher in poplar than in willow, whereas in

M. Zacchini; V. Iori; G. Scarascia Mugnozza; F. Pietrini; A. Massacci

2011-01-01

124

Storage Behaviour of Salix alba and Salix matsudana Seeds  

Microsoft Academic Search

Effects of dehydration, storage temperature and humidification on germination of Salix alba andS. matsudana seeds were studied. Newly released seeds showed 100% germination before and after dehydration to 1112% moisture content. Germination of the high vigour lot (100% initial normal germination) was not affected by dehydration to 6.7% moisture content but germination decreased with further dehydration to 4.3%. The lower

H. L. Maroder; I. A. Prego; G. R. Facciuto; S. B. Maldonado

2000-01-01

125

Purification, crystallization and preliminary X-ray crystallographic analysis of MIL, a glycosylated jacalin-related lectin from mulberry (Morus indica) latex  

PubMed Central

A quantitatively major protein has been purified from the latex of Morus indica. The purified previously uncharacterized protein, M. indica lectin (MIL), was further shown to be a glycosylated tetramer and belongs to the family of jacalin-related lectins. Crystallization of MIL was also accomplished and the tetragonal crystals diffracted synchrotron X-rays to a resolution of 2.8?. PMID:21543873

Patel, Ashok K.; Singh, Vijay K.; Bergmann, Ulrich; Jagannadham, Medicherla V.; Kursula, Petri

2011-01-01

126

Metabolic resource allocation vs. mating attractiveness: Adaptive pressures on the alba polymorphism of Colias butterflies*  

PubMed Central

The sex-limited alba genetic polymorphism in wing color of Colias butterflies has been studied with respect to potential selective pressures on this locus. Alba female pupae, carrying at least one dominant A allele, redirect resources, used by aa pupae for pigmentation, to other metabolic ends. Associated with this reallocation, alba, A-, female adults eclose earlier, retain more larva-derived resources in their fat bodies for somatic maintenance and for reproduction, and, in some conditions, mature their eggs faster than do aa females. Alba females are also less attractive to males than are aa females and mate less frequently. Evolutionary implications of these results are discussed. PMID:16592842

Graham, Scott M.; Watt, Ward B.; Gall, Lawrence F.

1980-01-01

127

Zbornik gozdarstva in lesarstva 70, s. 87 -100 GDK 811.151+811.13+174.7 Abies alba  

E-print Network

Zbornik gozdarstva in lesarstva 70, s. 87 - 100 GDK 811.151+811.13+174.7 Abies alba Prispelo DIFFERENTIATION OF LAST FORMED TRACHEIDS IN WOOD OF SILVER FIRS (Abies alba) HAVING VARIOUS CAMBIAL PRODUCTIVITY taken from mature silver fir (Abies alba) trees having various cambial productivity. Semi-thin cross

Cufar, Katarina

128

Felipe de Alba, Communication GIRA-ACFAS mai 20051 La crise dcisionnelle et la gouvernabilit mtropolitaine. La cas de Mexico.  

E-print Network

Felipe de Alba, Communication GIRA-ACFAS mai 20051 La crise décisionnelle et la gouvernabilité. Par Felipe DE ALBA1 Présentation 'analyse de la problématique politique récente de la métropole et de nous 1 Felipe de Alba est assistant de recherche de la Chaire de Recherche du

Paris-Sud XI, Université de

129

Proposal to reject the name Juglans alba (Juglandaceae), thereby retaining the name Carya tomentosa  

Technology Transfer Automated Retrieval System (TEKTRAN)

For most of the last 60 years the Linnaean name Juglans alba L. and its homotypic counterpart Carya alba (L.) Nutt. have not been in use, being a continued source of confusion through their former application to at least two distinct species, the mockernut hickory and the shagbark hickory. Both are ...

130

Counter-Hegemonic Regionalism and Higher Education for All: Venezuela and the ALBA  

ERIC Educational Resources Information Center

This paper employs new regionalism theory and regulatory regionalism theory in its analysis and theorisation of the Bolivarian Alliance for the Peoples of Our America (ALBA) as a counter-hegemonic Latin American and Caribbean (LAC) regionalism. As (initially) the regionalisation of Venezuela's Bolivarian Revolution, ALBA is centred around the idea

Muhr, Thomas

2010-01-01

131

Biomass productivity and phytoremediation potential of Salix alba and Salix viminalis  

Microsoft Academic Search

The aim of this work was to determine selected Salix clones capacities for biomass production and accumulation of heavy metal ions. Determination of the relationship between sorption of metals and biomass productivity was a further purpose of this study. Eight Salix viminalis cultivars and one Salix alba cultivar were analyzed. The taxa characterized by greatest biomass production were S. alba

Miros?aw Mleczek; Pawe? Rutkowski; Iwona Rissmann; Zygmunt Kaczmarek; Piotr Golinski; Kinga Szentner; Katarzyna Stra?y?ska; Agnieszka Stachowiak

2010-01-01

132

PfAlbas constitute a new eukaryotic DNA/RNA-binding protein family in malaria parasites.  

PubMed

In Plasmodium falciparum, perinuclear subtelomeric chromatin conveys monoallelic expression of virulence genes. However, proteins that directly bind to chromosome ends are poorly described. Here we identify a novel DNA/RNA-binding protein family that bears homology to the archaeal protein Alba (Acetylation lowers binding affinity). We isolated three of the four PfAlba paralogs as part of a molecular complex that is associated with the P. falciparum-specific TARE6 (Telomere-Associated Repetitive Elements 6) subtelomeric region and showed in electromobility shift assays (EMSAs) that the PfAlbas bind to TARE6 repeats. In early blood stages, the PfAlba proteins were enriched at the nuclear periphery and partially co-localized with PfSir2, a TARE6-associated histone deacetylase linked to the process of antigenic variation. The nuclear location changed at the onset of parasite proliferation (trophozoite-schizont), where the PfAlba proteins were also detectable in the cytoplasm in a punctate pattern. Using single-stranded RNA (ssRNA) probes in EMSAs, we found that PfAlbas bind to ssRNA, albeit with different binding preferences. We demonstrate for the first time in eukaryotes that Alba-like proteins bind to both DNA and RNA and that their intracellular location is developmentally regulated. Discovery of the PfAlbas may provide a link between the previously described subtelomeric non-coding RNA and the regulation of antigenic variation. PMID:22167473

Chne, Arnaud; Vembar, Shruthi S; Rivire, Loc; Lopez-Rubio, Jos Juan; Claes, Aurelie; Siegel, T Nicolai; Sakamoto, Hiroshi; Scheidig-Benatar, Christine; Hernandez-Rivas, Rosaura; Scherf, Artur

2012-04-01

133

Der Einfluss monochromatischer Strahlung auf das Lngenwachstum des Hypocotyls und auf die Anthocyanbildung bei Keimlingen von Sinapis alba L. (=Brassica alba Boiss.)  

Microsoft Academic Search

Summary a)Some photoreactions influencing the early stages of the development of mustard seedlings (Brassica alba Boiss.=Sinapis alba L.) were studied, using monochromatic radiation (400800 m?) from a spectrograph.b)Anthocyanin formation is light-dependent in these seedlings and is controlled by two photoreactions. One of these photoreactions is governed by the well-known red-far-red-pigment system and is practically saturated after a very shor time

Hans Mohr

1957-01-01

134

Linear volcanic features at Alba Patera, Mars - Probable spatter ridges  

NASA Technical Reports Server (NTRS)

A number of extensive linear constructional features occur on the north and east flanks of Alba Patera. They are found in a 150-km-wide zone and comprise aligned ridge elements that are locally associated with short volcanic flows. They are among the youngest volcanic features in the region and are believed to be Martian analogs of terrestrial spatter ridges. On the basis of measurements made on Viking images, it appears that active volcanic fissures on Mars were larger than their terrestrial counterparts.

Cattermole, Peter

1986-01-01

135

Fluid loss control materials increase production at Alba  

SciTech Connect

High-permeability formations are susceptible to formation damage. Drilling or completion fluids can cause permanent damage to the formation and may never be recovered once they leak into formation sand. Downhole processes, such as running in screens and pulling out guns, can also easily lead to damage in an unconsolidated formation. As describes here, Chevron recently used a crosslinkable HEC polymer gel pill and a viscous linear biopolymer prepack fluid to improve drilling and production performance at Alba field in the North Sea.

Ali, S.; McGinn, P.; Fitzpatrick, H.

1996-05-01

136

Fungicidal activity of Artemisia herba alba Asso (Asteraceae).  

PubMed

The antifungal activity of Artemisia herba alba was found to be associated with two major volatile compounds isolated from the fresh leaves of the plant. Carvone and piperitone were isolated and identified by GC/MS, GC/IR, and NMR spectroscopy. Antifungal activity was measured against Penicillium citrinum (ATCC 10499) and Mucora rouxii (ATCC 24905). The antifungal activity (IC50) of the purified compounds was estimated to be 5 microg/ml, 2 microg/ml against Penicillium citrinum and 7 microg/ml, 1.5 microg/ml against Mucora rouxii carvone and piperitone, respectively. PMID:16484084

Saleh, Mahmoud A; Belal, Mohamed H; el-Baroty, Gamal

2006-01-01

137

International Conference of Territorial Intelligence of Alba Iulia 2006 (CAENTI) | http://www.territorial-intelligence.eu halshs-00531461,version1-30Jun2014  

E-print Network

International Conference of Territorial Intelligence of Alba Iulia 2006 (CAENTI) | http of Territorial Intelligence, Alba Iulia 2006., Alba Iulia : Romania (2006)" #12;Jean-Jacques GIRARDOT Mihai PASCARU Ioan ILEAN Editors International Conference of Territorial Intelligence ALBA IULIA 2006 Volume 2

Boyer, Edmond

138

Life cycle of Saccammina alba hedley, 1962 (foraminiferida)  

SciTech Connect

The foraminifer Saccammina alba occurs in shallow-water habitats of bays and lagoons along the central California coast as either attached (cemented) or unattached (non-cemented) individuals. Like many other foraminifera, the life cycle of this species is characterized by an alternation of generations. The gamont is uninucleate, large, and common; the agamont is multinucleate, one-third the gamont's size and is exceedingly rare. The tests of gamonts and agamonts differ only in size, and this size relationship is the reverse of the normal expression of test dimorphism in the foraminifera. Juveniles are produced in one of four ways. Gamonts produce offspring asexually through budding or sexually through gametogenesis and subsequent fertilization. Agamonts produce schizozoites through one of two processes, one of which involves ingrowing extensions of the test's basal organic lining and one which does not. As in other saccamminids and the allogromiinans, gametogenesis in S. alba includes the zerfall process during which the gamontic nucleus enlarges and is eventually dismembered. Large amounts of extrachromosomal DNA are produced and contained in nucleoli of the zerfall nucleus. Similarly, in the agamont extrachromosomal DNA is produced in nuclei of early reproductive stages. Such extrachromosomal DNA may represent the amplification of rDNA.

Goldstein, S.T.

1985-01-01

139

A Beam line for Macromolecular Crystallography in ALBA  

SciTech Connect

ALBA is a third generation 3 GeV storage ring being built near Barcelona and foreseen to be operational in 2010. Out of the seven beamlines already funded in ALBA, one will be dedicated to macromolecular crystallography (MX). The beamline, dubbed XALOC, shall cope with a broad range of crystal structures and sizes. To this aim, a flexible optical design involving variable focusing optics has been incorporated into the beamline optics. The photon source will be a 2 m long, in-vacuum undulator with a period of 21.3 mm. The optics will consist in a Si(111), double-crystal monochromator cryogenically cooled, and a pair of mirrors placed in a Kirkpatrick-Baez configuration. The beamline will deliver a high flux beam in the 5-15 keV energy range, with an energy resolution of {delta}E/E {approx}2 x 10-4. In addition to the main beamline, it is being considered the possibility to use a diamond laue monochromator to provide photons at a fixed wavelength to an ancillary branch. This report shows the present status of the beamline design.

Juanhuix, Jordi; Ferrer, Salvador [CELLS -ALBA Synchrotron, Ed. Ciencies, Campus UAB, 08193 Bellaterra, Barcelona (Spain)

2007-01-19

140

Antioxidant polyphenols from Populus alba growing in Georgia.  

PubMed

The aim of the study was to evaluate natural antioxidant properties of Populus alba. The antioxidant effects in plants are mainly due to the presence of phenolic compounds such as flavonoids, phenolic acids, tannins and phenolic diterpenes. Oxidative damage is implicated in most diseases processes. In vitro studies are able to demonstrate for flavonols and flavones a considerable antioxidative activity, mainly based on scavenging of oxygen radicals. The antioxidative potential of different fractions (respective organic fractions of n-hexane, chloroform and ethyl acetate) of 70% methanol extract of Populus alba was evaluated using free radical-scavenging activity on DPPH (1,1-diphenyl-2-picrylhydrazyl ) assays. The methanol extract showed signi?cant (p<0.05) activities in all antioxidant assays and contained a high level of total phenolic content. It was observed that the level of hydrophilic phenolic content was higher than that of hydrophobics. Among those organic solvent fractions, ethyl acetate fraction exhibited signi?cant activities due to the highest level of total phenolic content and their IC50 values were 0.180.02 mg/mL, 0.260.03mg/mL and 0.280.02 mg/mL in DPPH, respectively. These activities were superior to those of a commercial natural antioxidants tested. The chloroform and hexan fractions also exhibited signi?cant (p<0.05) free radical-scavenging activity, attributed to the high amount of hydrophilic phenolics. PMID:22155814

Kuchukhidze, J; Jokhadze, M; Murtazashvili, T; Mshvildadze, V

2011-10-01

141

Tectonic histories between Alba Patera and Syria Planum, Mars  

USGS Publications Warehouse

Syria Planum and Alba Patera are two of the most prominent features of magmatic-driven activity identified for the Tharsis region and perhaps for all of Mars. In this study, we have performed a Geographic Information System-based comparative investigation of their tectonic histories using published geologic map information and Mars Orbiter Laser Altimetry (MOLA) data. Our primary objective is to assess their evolutional histories by focusing on their extent of deformation in space and time through stratigraphic, paleotectonic, topographic, and geomorphologic analyses. Though there are similarities among the two prominent features, there are several distinct differences, including timing deformational extent, and tectonic intensity of formation. Whereas Alba Patera displays a major pulse of activity during the Late Hesperian/Early Amazonian, Syria Planum is a long-lived center that displays a more uniform distribution of simple graben densities ranging from the Noachian to the Amazonian, many of which occur at greater distances away from the primary center of activity. The histories of the two features presented here are representative of the complex, long-lived evolutional history of Tharsis. ?? 2004 Elsevier Inc. All rights reserved.

Anderson, R.C.; Dohm, J.M.; Haldemann, A.F.C.; Hare, T.M.; Baker, V.R.

2004-01-01

142

Emplacement of lava flow fields - Application of terrestrial studies to Alba Patera, Mars  

NASA Technical Reports Server (NTRS)

The relationships obtained by Kilburn and Lopes (1988, 1990) for their models of lava flow fields were used to calculate the duration of the emplacement, the average discharge rates, and the average velocities of lavas for the Martian volcano Alba Patera, on which two distinct planimetric types of lava flow field were identified. The validity of using terrestrial analogues for investigating the emplacement conditions of the Alba Patera flow fields is examined. It is concluded that, at least for basaltic-basaltic andesitic compositions, the essential conditions of eruption from Alba Patera may have been similar to those currently observed on earth.

Lopes, Rosaly M. C.; Kilburn, Christopher R. J.

1990-01-01

143

Carson a dhanainn Elas na h-Alba ann an Dn ideann?  

E-print Network

Carson a dhèanainn Eòlas na h-Alba ann an Dùn ?ideann? Tha cliù eadar-nàiseanta aig Oilthigh Dhùn ?ideann airson feabhas a theagaisg agus rannsachaidh anns na cuspairean a bhuineas ri Alba. Tha an ceum Urraim ùr seo ann an Eòlas na h-Alba a' toirt cothrom seachad gus an nàisean a sgrùdadh ann an dòigh ioma

Schnaufer, Achim

144

Characterization of the error budget of Alba-NOM  

NASA Astrophysics Data System (ADS)

The Alba-NOM instrument is a high accuracy scanning machine capable of measuring the slope profile of long mirrors with resolution below the nanometer scale and for a wide range of curvatures. We present the characterization of different sources of errors that limit the uncertainty of the instrument. We have investigated three main contributions to the uncertainty of the measurements: errors introduced by the scanning system and the pentaprism, errors due to environmental conditions, and optical errors of the autocollimator. These sources of error have been investigated by measuring the corresponding motion errors with a high accuracy differential interferometer and by simulating their impact on the measurements by means of ray-tracing. Optical error contributions have been extracted from the analysis of redundant measurements of test surfaces. The methods and results are presented, as well as an example of application that has benefited from the achieved accuracy.

Nicolas, Josep; Martnez, Juan Carlos

2013-05-01

145

Estimates of Lava Eruption Rates at Alba Patera, Mars  

NASA Technical Reports Server (NTRS)

The Martian volcanic complex Alba Patera exhibits a suite of well-defined, long and relatively narrow lava flows qualitatively resembling those found in Hawaii. Even without any information on the duration of the Martian flows, eruption rates (total volume discharge/duration of the extrusion) estimates are implied by the physical dimensions of the flows and the likely conjecture that Stephan-Boltzmann radiation is the dominating thermal loss mechanism. The ten flows in this analysis emanate radially from the central vent and were recently measured in length, plan areas, and average thicknesses by shadow measurement techniques. The dimensions of interest are shown. Although perhaps morphologically congruent to certain Hawaiian flows, the dramatically expanded physical dimensions of the Martian flows argues for some markedly distinct differences in lava flow composition for eruption characteristics.

Baloga, S. M.; Pieri, D. C.

1985-01-01

146

Selection of roost sites by Honduran white bats, Ectophylla alba (Chiroptera: Phyllostomatidae)  

E-print Network

Ectophylla alba H. Allen (Chiroptera: Phyllostomatidae), the Honduran white bat, was found to alter the leaves of five species of Heliconia (H. imbricata, H. laptispatha, H. pogonantha, H. tortuosa, and an undescribed species) for use as diurnal...

Timm, Robert M.; Mortimer, Jeanne

1976-04-01

147

Histrico demogrfico e filogeografia em populaes brasileiras de Ardea alba egretta.  

E-print Network

??Foram estudadas populaes de Ardea alba egretta (gara-branca-grande) da famlia Ardeidae (Aves), amostradas em quatro regies brasileiras, com latitudes diferentes (Rio Grande do Sul, Pantanal, (more)

Thas Camilo Corra

2009-01-01

148

Quantitative analysis of seasonal variation in the amino acids in phloem sap of Salix alba L  

Microsoft Academic Search

Phloem sap of Salix alba L. was collected at monthly intervals between May and October. Amino acid analysis was carried out by ion exchange chromatography. The concentrations of individual amino acids are reported.

P. M. Leckstein; M. Llewellyn

1975-01-01

149

Quantitative analysis of seasonal variation in the amino acids in phloem sap of Salix alba L.  

PubMed

Phloem sap of Salix alba L. was collected at monthly intervals between May and October. Amino acid analysis was carried out by ion exchange chromatography. The concentrations of individual amino acids are reported. PMID:24435177

Leckstein, P M; Llewellyn, M

1975-01-01

150

Analysis and description of first year's growth of Salix alba L. clones  

Microsoft Academic Search

To distinguish twelve clones of Salix alba L. in the first year of growth, three major characters were selected by numerical analysis: length\\/width ratio of leaf blade, length of petiole and position of maximum width of leaf blade.

N. Groendijk-Wilders

1990-01-01

151

Effect of Eclipta alba on Acute Seizure Models: a GABAA-mediated Effect  

PubMed Central

In the present study, anticonvulsant activity of methanol extract of Eclipta alba (10-200 mg/kg) was studied using pentylenetetrazole- and picrotoxin-induced seizure models. Mechanism of effect of methanol extract of Eclipta alba was further elucidated by studying its GABAA receptor modulatory activity and its effect on levels of GABA in mice brain. Methanol extract of Eclipta alba exhibited potent anticonvulsant activity but has saturation of its pharmacological activity at 50 mg/kg. At the concentration of 10 mg/ml, contractions induced in guinea pig ileum was blocked by picrotoxin, but it didnt not show any increase in GABA levels in mice brain after treatment. Hence, it can be concluded that methanol extract of Eclipta alba possesses potent anticonvulsant activity because of its positive modulatory effect on GABAA receptors. PMID:24082359

Shaikh, M. F.; Sancheti, J.; Sathaye, S.

2013-01-01

152

Hair growth promoting activity of Eclipta alba in male albino rats  

Microsoft Academic Search

Alopecia is a dermatological disorder with psychosocial implications on patients with hair loss. Eclipta alba Hassk. is a well-known Ayurvedic herb with purported claims of hair growth promotion. In the reported work attempts were\\u000a undertaken to evaluate petroleum ether and ethanol extract of E. alba Hassk. for their effect on promoting hair growth in albino rats. The extracts were incorporated

R. K. Roy; Mayank Thakur; V. K. Dixit

2008-01-01

153

Los discursos sobre sexualidad en la obra de Alicia Gaspar de Alba  

E-print Network

) May 2002 Major Subject: Modern Languages ABSTRACT Los discursos sobre sexualidad en la obra de Alicia Gaspar de Alba. (May 2002) Ricardo F. Vivancos Perez, Ldo. Filosofia y Letras (Filologia Inglesa), Universidad de Malaga Chair of Advisory... Alicia Gaspar de Alba. (May 2002) Ricardo F. Vivancos Perez, Ldo. Filosofia y Letras (Filologia Inglesa), Universidad de Malaga Chair of Advisory Committee: Dr. Manuel M. Martin Rodriguez En este estudio me acerco a los escritos de la poeta, cuentista...

Vivancos P?erez, Ricardo F

2012-06-07

154

Sex ratio in hybrids between Silene alba and Silene dioica: evidence for Y-linked restorers  

Microsoft Academic Search

Sex ratio in Silene alba is generally female biased, and the bias is influenced by Y-linked alleles that are polymorphic in natural populations. One interpretation of these alleles is that they enhance the production of males in female-biased populations, i.e. they are restorers. Two Silene species, S. alba and S. dioica, and their reciprocal hybrids were used to investigate the

Douglas R Taylor

1994-01-01

155

Tissue immunostaining for factor XIIIa in dermal dendrocytes of pityriasis alba skin lesions*  

PubMed Central

BACKGROUND Pityriasis alba affects 1% of the world population and about 9.9% of the children in Brazil. However, its etiology remains uncertain. OBJECTIVE The objective of the present study was to evaluate the immunoexpression of factor XIIIa in dermal dendrocytes of skin lesions of pityriasis alba. METHOD Twenty patients with pityriasis alba and 20 patients with atopic dermatitis underwent biopsy. The dermal dendrocytes marked by factor XIIIa were counted by means of immunohistochemical analysis. RESULTS The mean amount of dermal dendrocytes found in the patients with pityriasis alba was 2, whereas in the patients with atopic dermatitis it was 4, with a statistically significant difference between them. A cutoff point of 3 cells/square inch was established to differentiate pityriasis alba from atopic dermatitis, with 80% sensibility and 90% specificity. CONCLUSION We believe that pityriasis alba and atopic dermatitis should be considered different clinical forms within the spectrum of atopic disease, in which sun radiation plays an important role by modulating the progression of the disease. PMID:24770500

Carneiro, Francisca Regina Oliveira; do Amaral, Gabriela Borborema; Mendes, Maiana Darwich; Quaresma, Juarez Antnio Simes

2014-01-01

156

GDK: 811.18:174.7 Abies alba Mill.+176.1 Fagus sylvatica L. NastaNek lesa pri beli jelki (Abies alba Mill.) iN NavadNi bukvi (Fagus sylvatica l.)  

E-print Network

GDK: 811.18:174.7 Abies alba Mill.+176.1 Fagus sylvatica L. NastaNek lesa pri beli jelki (Abies alba Mill.) iN NavadNi bukvi (Fagus sylvatica l.) ­ difereNciacija terMiNalNih celic v ksileMski bra bele jelke (Abies alba) in navadne bukve (Fagus sylvatica). Raziskave smo opravili na vzorcih intaktnih

Cufar, Katarina

157

Agrobacterium tumefaciens-mediated transformation of Indian mulberry, Morus indica cv. K2: a time-phased screening strategy.  

PubMed

An efficient and reproducible protocol for the production of transgenic plants was developed for Morus indica cv. K2 by Agrobacterium tumefaciens-mediated transformation. The hypocotyls, cotyledon, leaf and leaf callus explants precultured for 5 days on regeneration medium were co-cultivated with a bacterial suspension at 10(9) cells/ml for 3 days in the dark. Infectivity of A. tumefaciens strain LBA4404 was more than that of strains GV2260 and A281, and among the various plasmids tried, pBI121 and pBI101:Act1 transformed nearly 100% of the explants followed closely by p35SGUSINT. About 90-100% of the explants tested positive in the beta-glucuronidase (GUS) histochemical assay performed after 3 days of co-cultivation. This high level of transient expression, however, decreased to 20-25% after 15 days. Gus activity was most stable in the callus explants, which emerged as the explant of choice for transformation. The transformed explants were selected on 50-75 mg/l kanamycin for 1 month, and 25-50% of the explants developed adventitious buds. On the basis of kanamycin-resistant shoots produced from the total number of explants inoculated, the transformation efficiency was 44%. After 1 month, 40% of these shoots displayed high gus activity as assessed by the GUS fluorometric assay. On a selection-free root induction medium, 80% of the shoots developed roots and 90% of the potted plantlets acclimatized to the growth room conditions. The 3-month-old regenerates showed gus and nptII(neomycin phosphotransferase II) gene activity as assayed by the GUS fluorometric assay and nptII enzyme assay, followed by PCR polymerase chain reaction (54.5%) analysis after 6-months. Transgene integration into the nuclear genome of 1-year-old regenerates was confirmed in 10 of the 18 transformants tested by Southern analysis. The transformation efficiency as defined by the number of transgenic plants produced from the total number of explants co-cultivated was 6%. PMID:12789417

Bhatnagar, S; Khurana, P

2003-03-01

158

Benzo[a]pyrene co-metabolism in the presence of plant root extracts and exudates: Implications  

E-print Network

and energy source. Plant root extracts of osage orange (Maclura pomifera), hybrid willow (Salix alba!matsudana), or kou (Cordia subcordata), or plant root exudates of white mulberry (Morus alba) supported 15e20% benzo

Alvarez, Pedro J.

159

Valleys on Northwest Flank of Alba Patera Volcano  

NASA Technical Reports Server (NTRS)

In 1972, Mariner 9 images revealed a variety of branched and networked valleys on Alba Patera, a volcano in northern Tharsis. Since then, the question has always been, 'what made these valleys, water or lava?' Because the Alba Patera volcano was considered to be a relatively young feature on Mars, it seemed that if waterways involved in the formation of the valleys, then it would imply that liquid water flowed on this part of Mars at a relatively recent time in the planet's history. Thus, it was hoped that Mars Global Surveyor (MGS), with its super-high resolution Mars Orbiter Camera (MOC), would help answer this key question about evidence for past water on the red planet.

However, when MOC peered down upon these valleys it became clear that the camera might not help answer the question of their origin. As the picture above shows, these valleys--which trend from lower right to upper left in the picture--are old and have been cut by younger faults that created graben--e.g., the wide, straight valley running diagonally from upper right to lower left. Worse, the close-up views revealed that the valleys are covered up by a lumpy-textured material that also partly fills nearby impact craters. The origin of the textured material is unknown but might result from years and years of wind erosion of surface 'soil' or volcanic ash. However it formed, this covering obscures so much of the details of the valleys that high resolution pictures are unlikely to solve this mystery.

The picture above covers an area approximately 8 kilometers (5 miles) wide by 15 kilometers (9 miles) high. Illumination is from the right. The picture was acquired in August 1998 during the MGS Science Phasing Orbits imaging campaign, and was presented at the 30th Lunar and Planetary Science Conference in Houston, Texas, March 1999.

Malin Space Science Systems and the California Institute of Technology built the MOC using spare hardware from the Mars Observer mission. MSSS operates the camera from its facilities in San Diego, CA. The Jet Propulsion Laboratory's Mars Surveyor Operations Project operates the Mars Global Surveyor spacecraft with its industrial partner, Lockheed Martin Astronautics, from facilities in Pasadena, CA and Denver, CO.

1999-01-01

160

Epidemiology of Anther-Smut Infection of Silene alba (= S. latifolia) Caused by Ustilago violacea: Patterns of Spore Deposition in Experimental Populations  

E-print Network

Epidemiology of Anther-Smut Infection of Silene alba (= S. latifolia) Caused by Ustilago violacea-smut infection of Silene alba ( = S. latzfolia) caused by Ustilago violacea: patterns of spore deposition

Antonovics, Janis

161

Multiple Paternity in Polyandrous Barn Owls (Tyto alba)  

PubMed Central

In polyandrous species females produce successive clutches with several males. Female barn owls (Tyto alba) often desert their offspring and mate to produce a 2nd annual brood with a second male. We tested whether copulating during chick rearing at the 1st annual brood increases the male's likelihood to obtain paternity at the 2nd annual breeding attempt of his female mate in case she deserts their brood to produce a second brood with a different male. Using molecular paternity analyses we found that 2 out of 26 (8%) second annual broods of deserting females contained in total 6 extra-pair young out of 15 nestlings. These young were all sired by the male with whom the female had produced the 1st annual brood. In contrast, none of the 49 1st annual breeding attempts (219 offspring) and of the 20 2nd annual breeding attempts (93 offspring) of non-deserting females contained extra-pair young. We suggest that female desertion can select male counter-strategies to increase paternity and hence individual fitness. Alternatively, females may copulate with the 1st male to derive genetic benefits, since he is usually of higher quality than the 2nd male which is commonly a yearling individual. PMID:24244622

Dubey, Sylvain; Simon, Cline; Waldvogel, Cline; Burri, Reto; Roulin, Alexandre

2013-01-01

162

Female barn owls (Tyto alba) advertise good genes.  

PubMed Central

The good genes hypothesis of sexual selection postulates that ornamentation signals superior genetic quality to potential mates. Support for this hypothesis comes from studies on male ornamentation only, while it remains to be shown that female ornamentation may signal genetic quality as well. Female barn owls (Tyto alba) display more black spots on their plumage than males. The expression of this plumage trait has a genetic basis and it has been suggested that males prefer to mate with females displaying more black spots. Given the role of parasites in the evolution of sexually selected traits and of the immune system in parasite resistance, we hypothesize that the extent of female plumage 'spottiness' reflects immunological defence. We assessed the genetic variation in specific antibody production against a non-pathogenic antigen among cross-fostered nestlings and studied its covariation with the plumage spottiness of genetic parents. The magnitude of the antibody response was positively correlated with the plumage spottiness of the genetic mother but not of the genetic father. Our study thereby provides the first experimental support, to our knowledge, for the hypothesis that female ornamentation signals genetic quality. PMID:10853738

Roulin, A; Jungi, T W; Pfister, H; Dijkstra, C

2000-01-01

163

Temporal trends of mercury, organochlorines and PCBs in northern gannet (Morus bassanus) eggs from Bonaventure Island, Gulf of St. Lawrence, 1969-2009.  

PubMed

Since 1969, northern gannet (Morus bassanus) eggs from Bonaventure Island, Qubec, have been collected to monitor concentrations of contaminants. Levels of p,p'-DDE, which caused low breeding success of Bonaventure gannets in the 1960s, decreased by 99.4% from 1969 to 2009 (17.1-0.1mg/kg ww), with concomitant improvement of hatching success. PCBs, most organochlorines and mercury also showed decreasing trends. Stable isotopes of carbon (?(13)C) and nitrogen (?(15)N) were measured to track the possible influence of diet changes on concentrations of contaminants over time. The confounding effect of the combustion of fossil fuels on baseline values of ?(13)C (the Suess effect) was taken into account. No temporal trends were observed in ?(13)C and ?(15)N values in gannet eggs. Hence trophic level or foraging area had a negligible influence on temporal trends of contaminants. PMID:25486601

Champoux, Louise; Rail, Jean-Franois; Lavoie, Raphael A; Hobson, Keith A

2015-02-01

164

Anxiolytic activity of Nymphaea alba Linn. in mice as experimental models of anxiety  

PubMed Central

Objective: The aim of the present work was to evaluate the anxiolytic effect of an ethanolic extract of Nymphaea alba Linn. in mice. Materials and Methods: The elevated plus maze test (EPMT), light and dark test (L and DT) and open field test (OFT) were used to assess the anxiolytic activity of the ethanolic extract of N. alba Linn. in mice. In addition, aggressive behavior and motor coordination was also assessed by foot shock induced aggression test (FSIAT) and rota rod test (RRT). Diazepam 1 mg/kg served as a standard anxiolytic drug, administered orally. Results: The ethanolic extract of N. alba (100 and 200 mg/kg, p.o.) significantly increased the percentage of time spent and number of entries in open arm in EPMT. In L and DT, the extract produced significant increase in time spent, number of crossing and decrease in the duration of immobility in light box. In OFT, the extract showed significant increase in number of rearings, assisted rearings and number of square crossed, all of which are demonstrations of exploratory behavior. In FSIAT, N. alba extract attenuated aggressive behavior related to anxiolytic activity, such as number of vocalization, leaps, rearing, biting/attacks and facing each other in paired mice. Furthermore, the extract produced skeletal muscle relaxant effect assessed by RRT. Conclusion: The results of the present study suggest that an ethanolic extract of N. alba may possess anxiolytic activity and provide a scientific evidence for its traditional claim. PMID:21455422

Thippeswamy, B.S.; Mishra, Brijesh; Veerapur, V.P.; Gupta, Gourav

2011-01-01

165

Evaluation of hepatoprotective activity of aqueous extracts of leaves of Basella alba in albino rats.  

PubMed

This study was done to evaluate possible hepatoprotective effects of aqueous leaf extracts of Basella alba in comparison with silymarin in paracetamol-induced hepatotoxicity in albino rats. Six groups of six albino rats each received orally for 6 weeks, vehicle, paracetamol (2g/kg/day), paracetamol (2g/kg/day) plus silymarin (50mg/kg/day), paracetamol (2g/kg/day) plus B. alba extract (60mg/kg/day), paracetamol (2g/kg/day) plus B. alba extract (80mg/kg/day) and paracetamol (2g/kg/day) plus B. alba extract (100mg/kg/day). Hepatoprotective effect was evaluated by comparing serum bilirubin, serum glutamic oxaloacetic transaminase, serum glutamic pyruvic transaminase, proteins, alkaline phosphatase and liver histopathology. Results were represented as mean SEM. One-way ANOVA was done followed by post hoc Tukey's test with a highly significance level of P <0.001. Aqueous leaf extracts of B. alba 100mg/kg/day orally had significant hepatoprotective effect in paracetamol-induced hepatotoxicity in albino rats. The results were well comparable and even in some respects superior to standard drug silymarin. PMID:25347929

Das, Saibal; Bandyopadhyay, Sanjib; Ramasamy, Anand; Mondal, Somnath

2014-10-28

166

Investigation of Antiarthritic Potential of Plumeria alba L. Leaves in Acute and Chronic Models of Arthritis  

PubMed Central

Aim. The present investigation was designed to evaluate antiarthritic potential of fractions of hydroalcoholic extract from leaves of P. alba. Materials and Methods. Plumeria alba L. leaves were extracted with hydroalcohol (30?:?70) to obtain hydroalcoholic extract of P. alba. This extract was further fractionated with solvents ethyl acetate and n-butanol to obtain EAPA and BPA, respectively. These fractions were tested against formaldehyde and Freund's complete adjuvant (FCA) induced arthritis. Arthritis assessment, paw volume, body weight, motor incoordination, and nociceptive threshold were measured. On day 21, the animals were sacrificed and histopathology was done. Results. The 100 and 200?mg/kg doses of EAPA and BPA caused a significant (P ? 0.050.01) reduction in paw swelling in both models. Erythrocyte sedimentation rate (ESR) and spleen weight decreased significantly (P < 0.01) in arthritic rats treated with extracts. There was significant (P < 0.05) improvement in thymus weight in EAPA treated rats whereas significant (P < 0.01) improvement was also seen in haemoglobin level (Hb) in diclofenac treated group. Motor incoordination and nociceptive threshold were also significantly (P ? 0.050.01) improved. Conclusion. The present study suggests that Plumeria alba L. has protective activity against arthritis and supports the traditional use of P. alba for rheumatism and other inflammatory diseases. PMID:25025056

Kumar, Vipin; Gupta, Pankaj; Singh, Surender

2014-01-01

167

Zbornik gozdarstva in lesarstva 84 (2007), s. 310 GDK: 174.7 Abies alba+811.18+811.7(045)=163.6  

E-print Network

Zbornik gozdarstva in lesarstva 84 (2007), s. 3­10 GDK: 174.7 Abies alba+811 scientific paper Razmerje med ksilemskim in floemskim prirastkom pri jelki (Abies alba Mill.) Luka KRZE1 , Jozica GRICAR2 , Katarina CUFAR3 Izvlecek Pri 10 zdravih jelkah (Abies alba) smo raziskali anatomsko

Cufar, Katarina

168

GDK: 81+561.24:176.1 Abies alba (045)=163.6 Prispelo / Recived: 05. 11. 2009 Izvirni znanstveni clanek  

E-print Network

GDK: 81+561.24:176.1 Abies alba (045)=163.6 Prispelo / Recived: 05. 11. 2009 Izvirni znanstveni clanek Sprejeto / Accepted: 25. 11. 2009 Original scientific paper LES JELKE (Abies alba) KOT MATERIAL in rabe lesa jelke (Abies alba Mill.), ki ima neobarvano jedrovino, srednjo gostoto, relativno dobre

Cufar, Katarina

169

Digital Alba Iulia. The System Integrate for Regional E-government SIRE-Integrating Information Technology and Social Science Research for Effective  

E-print Network

1 Digital Alba Iulia. The System Integrate for Regional E-government SIRE- go Integrating Risteiu, prof. Ioan Ileana, assoc.prof. Mihail Pascariu University of Alba Iulia Abstract The Digital manuscript, published in "International Conference of Territorial Intelligence, Alba Iulia : Romania (2006

170

Nicaragua Re-Visited: From Neo-Liberal "Ungovernability" to the Bolivarian Alternative for the Peoples of Our America (ALBA)  

ERIC Educational Resources Information Center

In this paper I conduct a historical analysis of the emergence of ALBA in Nicaragua prior to Daniel Ortega's return to the presidency and the country's official membership in the initiative from January 2007 on. I argue that ALBA is a rival structure that evolved from the contradictions inherent in hegemonic globalisation. Within the framework of

Muhr, Thomas

2008-01-01

171

Management of Sinapis alba subsp. mairei winter cover crop residues for summer weed control in southern Spain  

Microsoft Academic Search

Sinapis alba subsp. mairei (H. Lindb. fil.) Maire, a wild subspecies of S. alba L., which is distributed throughout the Mediterranean basin, has been recently introduced in southern Spain as a winter cover crop in olive groves. The reason behind using this cover crop is for the reduction of Verticillium dahliae inoculum. The effectiveness of this cover crop for weed

C. Alcntara; A. Pujadas; M. Saavedra

2011-01-01

172

Volcanic styles at Alba Patera, Mars: Implications of lava flow morphology to the volcanic history  

NASA Technical Reports Server (NTRS)

Alba Patera presents styles of volcanism that are unique to Mars. Its very low profile, large areal extent, unusually long and voluminous lava flows, and circumferential graben make it among Mars' most interesting volcanic features. Clues to Alba's volcanic history are preserved in its morphology and stratigraphy. Understanding the relationship of lava flow morphology to emplacement processes should enable estimates of viscosity, effusion rate, and gross composition to be made. Lava flows, with dimensions considered enormous by terrestrial standards, account for a major portion of the exposed surface of Alba Patera. These flows exhibit a range of morphologies. While most previous works have focused on the planimetric characteristics, attention was drawn to the important morphological attributes, paying particular attention to what the features suggest about the emplacement process.

Schneeberger, D. M.; Pieri, D. C.

1988-01-01

173

Material model calibration from planar tension tests on porcine linea alba.  

PubMed

The purpose of this study was to determine biomechanical properties of linea alba subjected to transverse planar tension and to compare its behavior at different locations of the abdominal wall. Samples of linea alba from five different porcine abdominal walls were tested in planar tension. During these tests, strain maps were measured for the first time ever using the stereo-digital image correlation (S-DIC) technique. The strain maps were used to derive the properties of different hyperelastic material models. It was shown that the Ogden model and the Holzapfel-Gasser-Ogden model are appropriate to reproduce the response in planar tension. The linea alba located above the umbilicus was significantly more compliant than below the umbilicus. This difference which is reported for the first time here is consistent with the tissue microstructure and it is discussed within the perspective of clinically-relevant numerical simulations. PMID:25553553

Acosta Santamara, Vctor; Siret, Olivier; Badel, Pierre; Guerin, Gatan; Novacek, Vt; Turquier, Frdric; Avril, Stphane

2015-03-01

174

The Crustal Dichotomy Boundary West of Tempe Terra: Speculation on Where it Lies Beneath Alba Patera Based on Mola Topography  

NASA Technical Reports Server (NTRS)

MOLA gridded data based on profiles collected during the Aerobraking Hiatus and Science Phasing Operations suggest the crustal dichotomy boundary west of Tempe continues beneath Alba volcanics, at least to 105 W at about 50 N. A broad shelf-like region in the Alba units is continuous with a similar region of Tempe in which Hesperian volcanics overlie Noachian cratered terrain. Perspective views show significant changes in the sloping character of the flanks of Alba east and west of 105W, with much more continuous steep topography to the west. We suggest that Alba sits astride the ancient crustal dichotomy boundary, not adjacent to it, and that its eastern half lies on old cratered terrain. If true, this would significantly affect the estimate of Alba volcanics volumes, and might also explain some of the observed asymmetries in the structure and the distribution of faults associated with this immense feature.

Frey, H.; Roark, J.; Sakimoto, S.; McGovern, P.

1999-01-01

175

The Alba field - a middle Eocene deepwater channel in the UK North Sea  

SciTech Connect

The Alba field is located in the Witch Ground Graben between the Fladen Ground Spur to the north and the Renee Ridge to the south, entirely in UKCS in Block 16/26. In 1985, oil was discovered in the middle Eocene sandstones of the Horda Formation at a depth of 6,100 ft subsea. Twelve additional wells, including sidetracks, have been drilled to appraise the discovery. This drilling indicates the Alba field is a stratigraphic trap covering an area of 3,400 ac. The Alba sands represent a brief interruption in the hemipelagic sedimentation that dominated this part of the Witch Ground Graben during the middle Eocene. Sediment was supplied intermittently from a shelf to the northwest into a deep-water environment. Well correlations, seismic facies analysis, and core analysis indicate that these sands were deposited as part of a constructional channel/levee complex within a mudrich, shelf-sourced submarine fan system. The cap, updip, and lateral seals to the reservoir are shale. The Alba reservoir is predominantly a homogeneous, fine-grained, unconsolidated sandstone. The average reservoir porosity is 33% and the average permeability is 2.8 d. Oil in place is estimated to be 1.1 billion bbl of 20{degree} API crude.

Mattingly, G.A.; Bretthauser, H.H. (Chevron UK Ltd., London (England))

1990-09-01

176

On the Dangers of Rosy Lenses: Reply to Alba, Kasinitz and Waters  

ERIC Educational Resources Information Center

This article responds to the Alba, Kasinitz and Waters' commentary on the authors' article. The authors state that not all kids are doing "all right," and the substantial number at risk of social and economic stagnation or downward mobility looms as a significant social problem. They contend it is true that right-wing commentators may pick on

Haller, William; Portes, Alejandro; Lynch, Scott M.

2011-01-01

177

Mustard (Sinapis alba) Seed Meal Suppresses Weeds in Container Grown Ornamentals  

Technology Transfer Automated Retrieval System (TEKTRAN)

Mustard seed meal is a byproduct of mustard (Sinapis alba L.) grown and oil production. Developing new uses for mustard seed meal could increase the profitability of growing mustard. Seed meal of mustard, var. IdaGold was applied to the soil surface to evaluate its effect on several common weeds...

178

Pacific Northwest Condiment Yellow Mustard (Sinapis alba L.) Grower Guide: 2000-2002  

SciTech Connect

This report is a grower guide for yellow mustard. Yellow mustard (Sinapis alba L.), synonymous with white mustard, is a spring annual crop and well adapted to hot, dry growing conditions. It has shown potential as an alternative crop in rotations with small grain cereals and has fewer limitations compared to other traditional alternative crops.

Brown, J.; Davis, J. B.; Esser, A.

2005-07-01

179

Alba field - middle Eocene deep-water channel in U. K. North Sea  

SciTech Connect

The Alba field is located in the Witch Ground graben between the Fladen Ground spur to the north and the Renee Ridge to the south, entirely in UKCS Block 16/26. In 1985, oil was discovered in the middle Eocene sands of the Horda formation at a depth of 6100 ft subsea. Twelve additional wells, including sidetracks, have been drilled appraise the discovery. This drilling indicates the Alba field is a stratigraphic trap covering an area of 3600 ac. The Alba sands represent a brief interruption in the hemipelagic sedimentation that dominated this part of the Witch Ground graben during the middle Eocene. Sediment was supplied intermittently from a shelf area to the northwest into a deep-water environment. Well correlations, seismic facies analysis, and core analysis indicate that these sands were deposited as part of a constructional channel/levee complex within a mud-rich, shelf-sourced submarine fan system. The cap and the updip and lateral seals to the reservoir are shale. The Alba reservoir is predominantly a homogeneous, fine-grained, unconsolidated sand. The average reservoir porosity is 33% and the average permeability is 2.8 darcys. Oil in place is estimated to be 1.1 billion bbl of 20/degrees/ API crude.

Winter, S.R.; Bretthauer, H.H.; Mattingly, G.A.

1989-03-01

180

You Need Company in the Dark: Building the House of Bernarda Alba at HMP Holloway Prison  

ERIC Educational Resources Information Center

This article is about the production of The House of Bernarda Alba in Her Majesty's Prison Holloway in London England. It is written from a personal perspective and focuses on the following topics, collaboration, a brief comparison of prison life in the US and the UK, the successful and unsuccessful experiences of participants, and their insights

Williams, Rachel Marie-Crane

2003-01-01

181

BBC ALBA's Contributions to Gaelic Language Planning Efforts for Reversing Language Shift  

ERIC Educational Resources Information Center

BBC ALBA is the first dedicated Gaelic-medium television channel in history. It launched in September 2008 and, in late 2010, announced that it would be carried on Freeview, in addition to Sky, Freesat, and BBC iPlayer, thereby widening access to Gaelic throughout Scotland. The channel is a BBC-licensed service that is presently operated as a

Milligan, Lindsay; Chalmers, Douglas; Danson, Mike; Lang, Alison

2011-01-01

182

Microsatellite markers for the invasive plant species white sweetclover (Melilotus alba) and yellow sweetclover (Melilotus officinalis)  

Technology Transfer Automated Retrieval System (TEKTRAN)

We describe specific primers and conditions to amplify eight tetranucleotide, one trinucleotide, and one dinucleotide microsatellite DNA loci isolated from an enriched genomic library of Melilotus alba, an invasive plant species throughout North America. The number of alleles per locus ranged from 2...

183

Essential oils and isolated compounds from Lippia alba leaves and flowers: antimicrobial activity and osteoclast apoptosis.  

PubMed

In the present study, essential oils extracted from the leaves and flowers of Lippia alba (Mill.) N.E.Br. (L. alba) were analyzed for their antimicrobial activity and their effects on osteoclasts. The periodontal pathogens, Aggregatibacter actinomycetemcomitans (A. actinomycetemcomitans; ATCC 43717), Fusobacterium nucleatum (F. nucleatum; ATCC 25586) and Porphyromonas gingivalis (P. gingivalis); ATCC 33277) were used in antimicrobial activity assays for determining the minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC), whereas Bacteroides fragilis (B. fragilis; ATCC 25285) was used as the control microorganism. Osteoclast (OC) apoptosis was assessed by TUNEL assay and Fas receptor expression was detected by immunocytochemistry. The analysis of antimicrobial activity revealed that P. gingivalis had the lowest MIC values, whereas A. actinomycetemcomitans had the highest. L. alba essential oils were found to be toxic to human cells, although the compounds, carvone, limonene and citral, were non-toxic and induced apoptosis in the OCs. This study demonstrates that L. alba has potential biotechnological application in dentistry. In fact periodontal disease has a multifactorial etiology, and the immune response to microbial challenge leads to osteoclast activation and the resorption of the alveolar bone, resulting in tooth loss. PMID:25384405

Juiz, Paulo Jos Lima; Lucchese, Angelica Maria; Gambari, Roberto; Piva, Roberta; Penolazzi, Letizia; Di Ciano, Martina; Uetanabaro, Ana Paula Trovatti; Silva, Franceli; Avila-Campos, Mario Julio

2015-01-01

184

Competitive Effects of Native and Exotic Shrubs on Quercus alba Seedlings  

Microsoft Academic Search

The exotic shrub Lonicera tatarica (Tartarian honeysuckle) has aggres- sively invaded woodlands and forests in central and eastern North America; however, its impacts on native plant species are not well understood. We used a greenhouse seedling experiment to examine the effects of L. tatarica on Quercus alba (white oak), the presettlement dominant tree of many of these forests. Growth- related

Lars A. Brudvig; Christopher W. Evans

2006-01-01

185

The development of protein and oil bodies in the seed of Sinapis alba L  

Microsoft Academic Search

The cotyledons of Sinapis alba L. seed are the storage organs and first photosynthetic organs. The development of the cotyledon cell contents was studied using electron and light microscopy. From the heart shaped embryo (11 days from petal fall) to the mature seed, nine stages were examined.

Jane A. Rest; J. G. Vaughan

1972-01-01

186

Dynamics and determinants of Quercus alba seedling success following savanna encroachment and restoration  

E-print Network

Dynamics and determinants of Quercus alba seedling success following savanna encroachment Science II Hall, Iowa State University, Ames, IA 50011-3221, United States 1. Introduction Savannas occupy or clustered overstory trees in low densities are a defining feature of all savannas (Scholes and Archer, 1997

187

Diversity in seed production characteristics within the USDA-ARS Limnanthes alba germplasm collection  

Technology Transfer Automated Retrieval System (TEKTRAN)

Meadowfoam (L. alba) seeds are a source of long chain fatty acids which are stable under diverse environmental conditions. The fatty acid composition makes the oil valuable for use in cosmetics, lubricants, rubber additives, and plastics. While a few meadowfoam cultivars have been developed, high se...

188

Comparative Investigation of the Geological Histories Among Alba Patera and Syria Planum, Mars  

NASA Technical Reports Server (NTRS)

To better understand the evolution of the Tharsis magmatic complex, we performed a comparative investigation of the geological histories among two of the largest centers observed for Tharsis, Syria Planum and Alba Patera. Additional information is contained in the original extended abstract.

Anderson, R. C.; Dohm, J. M.; Haldemann, A. F. C.; Hare, T.

2002-01-01

189

Isolation and structure determination of a lignan from the bark of Salix alba  

Microsoft Academic Search

A lignan, sisymbrifolin (1) found in the fruits of Solanum sisymbriflolium has been isolated from the bark extract of Salix alba (Salicaceae). Its structure was elucidated by its direct spectrum data of ESI-MS and one- and two-dimensional NMR spectroscopy for the first time.

Qizhen Du; Gerold Jerz; Lianqing Shen; Lili Xiu; Peter Winterhalter

2007-01-01

190

Gleichzeitiger Nachweis von phenolarmen und phenolreichen Phasen in den Blattepidermiszellen von Salix alba L  

Microsoft Academic Search

Summary Strongly and weakly refractive phases occur in many vacuoles of the upper leaf epidermis ofSalix alba L. Different secondary vacuolar substances could be demonstrated separately in the interior of single cells by vital staining with brillant cresyl blue as well as by various microchemical assays. Only flavonoids (substances containing few phenolic OH-groups) could be detected in the weakly refractive

Birgit Kartusch

1975-01-01

191

Isolation and structure determination of a lignan from the bark of Salix alba.  

PubMed

A lignan, sisymbrifolin (1) found in the fruits of Solanum sisymbriflolium has been isolated from the bark extract of Salix alba (Salicaceae). Its structure was elucidated by its direct spectrum data of ESI-MS and one- and two-dimensional NMR spectroscopy for the first time. PMID:17487617

Du, Qizhen; Jerz, Gerold; Shen, Lianqing; Xiu, Lili; Winterhalter, Peter

2007-05-01

192

Distribution, movement and availability of Cd and Zn in a dredged sediment cultivated with Salix alba  

Microsoft Academic Search

Willows occur as volunteer vegetation on sediment-derived soils, such as dredged sediments, landfill cover or stockpile deposits, and are used as phytoremediators on such soils. The present study evaluates growth and metal uptake by Salix alba grown on a contaminated dredge sediment for 209 days under greenhouse conditions. At the end of the study, the aerial parts of the S.

Jean-Philippe Bedell; Xavier Capilla; Claire Giry; Christophe Schwartz; Jean-Louis Morel; Yves Perrodin

2009-01-01

193

Histochemical and ultrastructural studies on Salix alba and S. matsudana seeds  

Microsoft Academic Search

Mature seeds of Salix alba L. and Salix matsudana Koidz. are exendospermous and consist of an embryo and a seed coat. Ultrastructural studies show the presence of protein bodies, lipid bodies, chloroplasts, and a nucleus in the cells of most of the embryo tissues. Protein bodies always contain two or more globoid crystals. Energy-dispersive X-ray analysis of globoid crystals revealed

Horacio Maroder; Imelda Prego; Sara Maldonado

2003-01-01

194

Riparian Salix alba: Scrubs of the Po lowland (N-Italy) from an European perspective  

Microsoft Academic Search

This paper deals with riverine Salix albascrubs of the Po plain (northern Italy). They were compared with analogous formations of many other European countries to study similarities and differences. Demographic concentration and intense human activities (agriculture, industry) in the basin of the Po River are among the highest in Europe, with the remarkable consequence that all hygrophilous woods and bushes

L. Poldini; M. Vidali; P. Ganis

2011-01-01

195

Effects of tannery waste on growth dynamics and metal uptake in Salix alba L  

Microsoft Academic Search

This paper aims at providing a preliminary study of the effects of different doses of tannery waste containing high amounts of organic substances, mineral elements and heavy metals on growth dynamics and metal accumulation in willow plants. Scions of Salix alba L., clone S61-02, were grown in the open near Pisa (Italy), in pots filled with a natural soil. Willows

G. Giachetti; L. Sebastiani

2007-01-01

196

Biodiesel from Meadowfoam (Limnanthes alba L.) Seed Oil: Exceptional Oxidative Stability and Unusual Fatty Acid Composition  

Technology Transfer Automated Retrieval System (TEKTRAN)

Meadowfoam (Limnanthes alba L.) seed oil methyl esters (MFME), prepared by a standard transesterification procedure using methanol and sodium methoxide catalyst from refined meadowfoam oil (MFO), were evaluated as a potential biodiesel fuel. MFME contains the unusual 5(Z)-eicosenoate (64.2 wt %) an...

197

Effects of human activity on the foraging behavior of sanderlings Calidris alba  

Microsoft Academic Search

Urbanization and coastal development has dramatically reduced the beach habitat available for foraging shorebirds worldwide. This study tested the general hypothesis that recreational use of shorebird foraging areas adversely affects the foraging behavior of sanderlings Calidris alba. Observations conducted on two central California beaches from January through May and September through December of 1999 showed that number and activity of

Kate Thomas; Rikk G Kvitek; Carrie Bretz

2003-01-01

198

[In vitro evaluation of antileishmania activity of Artemisia herba alba Asso].  

PubMed

Aqueous extract and essential oil of Artemisia herba-alba Asso were tested for their antileshmanial activity again Leishmania tropica and Leishmania major. The strongest leishmanicidal activity was observed with the essential oil at 2 micrograms/ml as versus the other two strains tested. The aqueous extract showed an antileshmanial activity at 4 micrograms/ml. PMID:11346978

Hatimi, S; Boudouma, M; Bichichi, M; Chaib, N; Idrissi, N G

2001-03-01

199

Structural Analysis of Alba Patera, Mars: From deep-seated to shallow events  

NSDL National Science Digital Library

This 93-page PDF features a dissertation that focuses on the structural evolution of Alba Patera through an examination of the progressive changes from radial to concentric faulting. The second part of the dissertation examines the absence of a bulge, moat and concentric grabens surrounding the volcano, concluding that subsurface processes in the mantle may have counteracted subsidence forces.

Cailleau, B.; Kiel, Christian-Albrechts-Universitt Z.

200

Sex ratio in hybrids between Silene alba and Silene dioica: evidence for Y-linked restorers.  

PubMed

Sex ratio in Silene alba is generally female biased, and the bias is influenced by Y-linked alleles that are polymorphic in natural populations. One interpretation of these alleles is that they enhance the production of males in female-biased populations, i.e. they are restorers. Two Silene species, S. alba and S. dioica, and their reciprocal hybrids were used to investigate the inheritance of sex ratio and the relationship between sex ratio and male fertility. Sex ratio was paternally inherited (i.e. Y-linked), but was also strongly influenced by the maternal parent through an interaction with the Y chromosome. These results corroborate previous work on the inheritance of sex ratio within S. alba, and suggest that sex ratio in S. alba and S. dioica has a similar genetic basis. Examination of the maternal by Y chromosome interaction revealed that the Y chromosome of each species produced a more severe female bias in crosses with females of the opposite species. This is consistent with the hypothesis that the alleles expressed in the maternal parent cause the female bias, while the Y-linked alleles tend to restore sex ratio toward equality. PMID:7960924

Taylor, D R

1994-11-01

201

Dispersal and disease gradients of anther-smut (Ustilago violacea) infection of Silene alba at different life stages  

E-print Network

well-studied system, the herbaceous plant Silene alba, infected by the anther-smut fungus Ustilago violacea. Two different life stages (vegetative and floral) were examined. We measured spore deposition on flowers and, as an analog of dispersal...

Roche, Bernadette M.; Alexander, Helen M.; Maltby, Arlan D.

1995-09-01

202

Inhibitory effect of linalool-rich essential oil from Lippia alba on the peptidase and keratinase activities of dermatophytes.  

PubMed

Abstract Lippia alba (Miller) N.E. Brown is an aromatic plant known locally as "Erva-cidreira-do-campo" that has great importance in Brazilian folk medicine. The aim of our study was to evaluate the antidermatophytic potential of linalool-rich essential oil (EO) from L. alba and analyze the ability of this EO to inhibit peptidase and keratinase activities, which are important virulence factors in dermatophytes. The minimum inhibitory concentrations (MICs) of L. alba EO were 39, 156 and 312 g/mL against Trichophyton rubrum, Epidermophyton floccosum and Microsporum gypseum, respectively. To evaluate the influence of L. alba EO on the proteolytic and keratinolytic activities of these dermatophytes, specific inhibitory assays were performed. The results indicated that linalool-rich EO from L. alba inhibited the activity of proteases and keratinases secreted from dermatophytes, and this inhibition could be a possible mechanism of action against dermatophytes. Due to the effective antidermatophytic activity of L. alba EO, further experiments should be performed to explore the potential of this linalool-rich EO as an alternative antifungal therapy. PMID:23323991

Costa, Danielle Cristina Machado; Vermelho, Alane Beatriz; Almeida, Catia Amancio; de Souza Dias, Edilma Paraguai; Cedrola, Sabrina Martins Lage; Arrigoni-Blank, Maria de Ftima; Blank, Arie Fitzgerald; Alviano, Celuta Sales; Alviano, Daniela Sales

2014-02-01

203

TUBERCULOSIS COMO ENFERMEDAD OCUPACIONAL  

PubMed Central

Existe evidencia suficiente para declarar a la tuberculosis como enfermedad ocupacional en diversos profesionales especialmente entre los trabajadores de salud. En el Per estn normados y reglamentados los derechos laborales inherentes a la tuberculosis como enfermedad ocupacional, como la cobertura por discapacidad temporal o permanente. Sin embargo, estos derechos an no han sido suficientemente socializados. En este trabajo se presenta informacin sobre el riesgo de adquirir tuberculosis en el lugar de trabajo, se revisan las evidencias para declarar a la tuberculosis como enfermedad ocupacional en trabajadores de salud y se presenta la legislacin peruana vigente al respecto. PMID:22858771

Mendoza-Ticona, Alberto

2014-01-01

204

Therapeutic activity of crude ethanolic extract of Artemisia herba alba against Trypanosoma evansi in rabbits  

NASA Astrophysics Data System (ADS)

The present work was conducted to evaluate the antitrypanosomal efficacy of crude ethanolic extract (CEE) of the aerial parts of Artemisia herba alba against Trypanosoma evansi infection in an animal model. The results indicated low levels of parasitaemia in rabbits administered with crude ethanolic extract (CEE) compared to those from the negative control group. Similarly, there was also haematologically significant difference (p<0.05) where low mean levels of packed cell volume (PCV) was observed in Groups 1-4 respectively. In contrast, there was no statistically significant difference in almost all investigated parameters between positive control and treatment groups of animals. In conclusion, both CEE of A. herba-alba and Berenil showed relatively a parasitaemia and normal haematological values in infected rabbits, thereby confirming their antiparasitic properties.

Awad, Fathy M.; Hasan, Zainal Abidin Abu; Osman, Abdinasir Yusuf; Ibrahim, Nazlina

2013-11-01

205

Derivation of uranium residual radioactive material guidelines for the former Alba Craft Laboratory site, Oxford, Ohio  

SciTech Connect

Residual radioactive material guidelines for uranium were derived for the former Alba Craft Laboratory site in Oxford, Ohio. This site has been identified for remedial action under the Formerly Utilized Sites Remedial Action Program (FUSRAP) of the US Department of Energy (DOE). Single nuclide and total uranium guidelines were derived on the basis of the requirement that the 50-year committed effective dose equivalent to a hypothetical individual who lives or works in the immediate vicinity of the former Alba Craft Laboratory site should not exceed a dose of 30 mrem/yr following remedial action for the current use and likely future use scenarios or a dose of 100 mrem/yr for less likely future use scenarios (Yu et al. 1993). The DOE residual radioactive material guideline computer code, RESRAD, which implements the methodology described in the DOE manual for implementing residual radioactive material guidelines, was used in this evaluation.

Nimmagadda, M.; Faillace, E.; Yu, C.

1994-01-01

206

Analgesic studies on total alkaloids and alcohol extracts of Eclipta alba (Linn.) Hassk.  

PubMed

A variety of analgesics are used for the treatment of acute and chronic pain in different disease states. A narcotic or a non-narcotic analgesic that does not cause respiratory depression and addiction is needed. In Ayurveda a large number of indigenous drugs have been mentioned possessing analgesic properties (e.g. Guggul, Erand, Rasna, Bhringaraj, Methika, Palandu and Prasikayavani). The present experimental research work was undertaken to determine the analgesic activity of the total ethanol extract of Eclipta alba, and also the isolated alkaloids of Eclipta alba in albino mice by using standard experimental models such as the tail clip method, the tail flick method and the acetic acid induced writhing response. The results from this study show that both the ethanol extract as well as the total alkaloids produce good analgesic activity in all the different models of analgesia used. The total alkaloidal fraction was the most efficacious in all models tested. PMID:15022160

Sawant, Mahesh; Isaac, Jolly C; Narayanan, Shridhar

2004-02-01

207

Constituents of essential oils from the leaf and flower of Plumeria alba grown in Nigeria.  

PubMed

This paper reports on the compounds identified in the leaf and flower essential oils obtained by hydrodistillation of Plumeria alba L. (Apocynaceae) grown in Nigeria. The chemical analysis of the essential oils was achieved by means of gas chromatography (GC) and gas chromatography coupled with mass spectrometry (GC-MS). Linalool (13.2%), n-nonanal (9.6%), phenyl acetaldehyde (8.5%), neryl acetone (5.3%) and n-decanal (5.1%) were the main constituents of the leaf oil. On the other hand, the flower oil comprised mainly of limonene (9.1%), linalool (7.9%), ?-cedrene (8.0%), caryophyllene oxide (7.9%) and (E, E)-?-farnesene (6.6%). This is the first report on the essential oil constituents of P. alba. PMID:25532294

Lawal, Oladipupo A; Ogunwande, Isiaka A; Opoku, Andy R

2014-11-01

208

Novel and cross-species microsatellite markers for parentage analysis in Sanderling Calidris alba  

Microsoft Academic Search

We isolated and tested six novel microsatellite loci in Sanderling (Calidris alba) from Greenland for paternity analyses. In addition, we tested 11 already published microsatellite markers which were originally\\u000a developed for the congeneric species, the Pectoral Sandpiper (C. melanotos). All loci were polymorphic, but five of the cross-species loci were not scorable due to suboptimal amplification patterns.\\u000a The 12 successful

Pieternella C. Luttikhuizen; Anneke Bol; Harry Witte; Judith van Bleijswijk; Oliver Haddrath; Allan J. Baker; Theunis Piersma; Jeroen Reneerkens

2011-01-01

209

Rapid photomodulation of stem extension in light-grown Sinapis alba L  

Microsoft Academic Search

Treatment of the whole of aSinapis alba plant with supplementary far-red light (FR), in back-ground white light (WL), induces a rapid increase in stem extension rate. This rapid increase is regulated by the light environment of the stem itself. Supplementary FR to the stem increases extension rate after a lag period of 1015 min. A lag period of 34 h

D. C. Morgan; T. O'Brien; H. Smith

1980-01-01

210

Isoprene and terpenoid emissions from Abies alba: Identification and emission rates under ambient conditions  

NASA Astrophysics Data System (ADS)

In this study, biogenic volatile organic compound (BVOC) emissions from Abies alba were studied under ambient conditions in Flanders (Belgium). Emission patterns and rates were investigated from April till November 2010 by using the dynamic branch enclosure technique. The present work revealed that A. alba is an isoprene emitter, with isoprene accounting for 86-93% of total BVOC emissions, except during budburst (67%) in May. The emission spectrum of A. alba consisted of 27 compounds. Next to isoprene, the main emitted compounds were ?-pinene, ?-pinene, camphene and limonene. BVOC emissions showed a peak in June after development of the young needles, followed by a constant emission during summer months and September and a decrease in October. In all the samples isoprene was the most abundant compound with standardized emission rates between 27?gg(dw)-1h-1 in June and 4.6?gg(dw)-1h-1 in October, while the total standardized terpenoid emission rates ranged from 2.85?gg(dw)-1h-1 in June to 0.26?gg(dw)-1h-1 in October. The obtained average ? coefficients according to the temperature dependent algorithm of Guenther etal. (1993) during April-June, July, August and September-October were as follows: for terpenoids 0.120.03, 0.110.05, 0.120.04, 0.240.01K-1 and sesquiterpenes (SQTs) 0.090.02, 0.110.01, 0.100.05, 0K-1, respectively. Overall, isoprene detected in this study was never quantified in previous studies on A. alba and this finding could have a significant impact on the regional BVOCs budget. Therefore, the result of this study is very important for modeling and local air quality.

Pokorska, Olga; Dewulf, Jo; Amelynck, Crist; Schoon, Niels; impraga, Maja; Steppe, Kathy; Van Langenhove, Herman

2012-11-01

211

Two flavonoids from Artemisia herba-alba Asso with in vitro GABAA-benzodiazepine receptor activity.  

PubMed

An ethyl acetate extract of Artemisia herba-alba was partitioned by HPLC in 10 fractions that were tested in the [(3)H]-flumazenil radioligand assay, for affinity to the GABA(A)-benzodiazepine receptor. Two fractions showed activity from which hispidulin and cirsilineol were isolated. The structures were confirmed by (1)H NMR. The IC(50) values were 8 microM for hispidulin and 100 microM for cirsilineol. PMID:15848034

Salah, Sam Medhat; Jger, Anna Katharina

2005-05-13

212

Cloning and analysis of the planosporicin lantibiotic biosynthetic gene cluster of Planomonospora alba.  

PubMed

The increasing prevalence of antibiotic resistance in bacterial pathogens has renewed focus on natural products with antimicrobial properties. Lantibiotics are ribosomally synthesized peptide antibiotics that are posttranslationally modified to introduce (methyl)lanthionine bridges. Actinomycetes are renowned for their ability to produce a large variety of antibiotics, many with clinical applications, but are known to make only a few lantibiotics. One such compound is planosporicin produced by Planomonospora alba, which inhibits cell wall biosynthesis in Gram-positive pathogens. Planosporicin is a type AI lantibiotic structurally similar to those which bind lipid II, the immediate precursor for cell wall biosynthesis. The gene cluster responsible for planosporicin biosynthesis was identified by genome mining and subsequently isolated from a P. alba cosmid library. A minimal cluster of 15 genes sufficient for planosporicin production was defined by heterologous expression in Nonomuraea sp. strain ATCC 39727, while deletion of the gene encoding the precursor peptide from P. alba, which abolished planosporicin production, was also used to confirm the identity of the gene cluster. Deletion of genes encoding likely biosynthetic enzymes identified through bioinformatic analysis revealed that they, too, are essential for planosporicin production in the native host. Reverse transcription-PCR (RT-PCR) analysis indicated that the planosporicin gene cluster is transcribed in three operons. Expression of one of these, pspEF, which encodes an ABC transporter, in Streptomyces coelicolor A3(2) conferred some degree of planosporicin resistance on the heterologous host. The inability to delete these genes from P. alba suggests that they play an essential role in immunity in the natural producer. PMID:23475977

Sherwood, Emma J; Hesketh, Andrew R; Bibb, Mervyn J

2013-05-01

213

Experimental evaluation of the analgesic property of eclipta alba (L) hassk.  

PubMed

A narcotic or a non-narcotic analgesic that would not cause respiratory depression and addiction in may be used as an alternative to morphine. In Ayurveda a large number of indigenous drugs have been mentioned possessing the analgesic properties e.g Guggul, Erand, Rasna, Bhringaraja, Methika, palandu and prasikayavani. Total alcoholic extracts of Bhringaraja (Eclipta alba) was undertaken to study the analgesic activity in albino rats and albino mice by using different standard experimental models. PMID:22556819

Pandey, P S; Upadhyay, K K; Pandey, D N

1997-07-01

214

EXPERIMENTAL EVALUATION OF THE ANALGESIC PROPERTY OF ECLIPTA ALBA (L) HASSK.  

PubMed Central

A narcotic or a non-narcotic analgesic that would not cause respiratory depression and addiction in may be used as an alternative to morphine. In Ayurveda a large number of indigenous drugs have been mentioned possessing the analgesic properties e.g Guggul, Erand, Rasna, Bhringaraja, Methika, palandu and prasikayavani. Total alcoholic extracts of Bhringaraja (Eclipta alba) was undertaken to study the analgesic activity in albino rats and albino mice by using different standard experimental models. PMID:22556819

Pandey, P.S.; Upadhyay, K.K. O.P.; Pandey, D.N.

1997-01-01

215

Hybridization in staminate and pistillate Salix alba and S. fragilis (Salicaceae): morphology versus RAPDs  

Microsoft Academic Search

.?The polyploid Salix albaSalix fragilis hybrid complex is rather difficult to study when using only morphological characters. Most of the characters have a low diagnostic\\u000a value for unambiguously identifying the hybrids, introgression patterns and population structures. Morphology and molecular\\u000a variation determined with random amplified polymorphic DNAs (RAPDs) were investigated in a set of staminate and pistillate\\u000a willows from Belgium. A

L. Triest

2001-01-01

216

Micropropagation method for a hybrid willow (Salix matsudana alba NZ1002)  

Microsoft Academic Search

A method is described for rapid in vitro multiplication of a hybrid willow (S. matsudana alba NZ-1002). On Murashige and Skoog's medium (MS) containing benzylaminopurine (BAP) at 0.1 mg\\/l and naphthaleneacetic acid (NAA) at 0.2 mg\\/l a 4-fold shoot multiplication can be achieved in 4 weeks. The isolated shoots produced in this way, after being rooted on MS containing

Sant S. Bhojwani

1980-01-01

217

The potential of biomonitoring of air quality using leaf characteristics of white willow ( Salix alba L.)  

Microsoft Academic Search

In this study, we assess the potential of white willow (Salix alba L.) as bioindicator for monitoring of air quality. Therefore, shoot biomass, specific leaf area, stomatal density, stomatal\\u000a pore surface, and stomatal resistance were assessed from leaves of stem cuttings. The stem cuttings were introduced in two\\u000a regions in Belgium with a relatively high and a relatively low level

Tatiana Wuytack; Kris Verheyen; Karen Wuyts; Fatemeh Kardel; Sandy Adriaenssens; Roeland Samson

2010-01-01

218

Monographie der Salix alba L. spec. plant. (1753) unter Bercksichtigung genetischer und zchterischer Aspekte  

Microsoft Academic Search

ZusammenfassungDie Weiweide (Salix alba L.) weist ein sehr groes natrliches Verbreitungsgebiet auf, das sich ber wesentliche Teile der euroasiatischen Landmasse\\u000a erstreckt und sogar bis Nordafrika reicht. Im allgemeinen werden von dieser Baumart sowie von ihren Varietten, Formen und\\u000a Bastarden die Flu-und Seeniederungen bevorzugt, wo sie als sogenannte Baumweiden mit beachtlichen Wuchs- und Formeigenschaften\\u000a am Aufbau der Auwlder hervorragend beteiligt sind.

E. Weber

1974-01-01

219

Cryopreservation of white poplar ( Populus alba L.) by vitrification of in vitro-grown shoot tips  

Microsoft Academic Search

Shoot tips from in vitro-grown, cold-hardened stock plants of white poplar (Populus alba L.) were successfully cryopreserved at 196??C by one-step vitrification. After preculturing at 5??C for 2 days on hormone-free\\u000a MS medium containing different sucrose concentrations, and loading for 20?min with 2?m glycerol and 0.4?m sucrose, shoot tips were treated with the PVS2 vitrification solution and plunged directly into

M. Lambardi; A. Fabbri; A. Caccavale

2000-01-01

220

POPULATION, BIOMETRICS AND MOVEMENTS OF THE SANDERLING CALIDRIS ALBA IN SOUTHERN AFRICA  

Microsoft Academic Search

Summers, R. W., Underhill, L. G, Waltner, M. & Whitelaw, D. A. 1987. Population, biometrics and movements of the Sanderling Calidris alba in southern Africa. Ostrich 58:24-39.The Sanderling in southern Africa is restricted to coastal habitats. The population during the austral summer was estimated to be 78000. Highest densities occurred along the west coast where the Benguela Up-welling System gives

R. W. Summers; L. G. Underhill; M. Waltner; D. A. Whitelaw

1987-01-01

221

Apellidos Nombre Idioma HORA AULA ABON ESCALONA ALBA ITALIANO 15-17 214  

E-print Network

Apellidos Nombre Idioma HORA AULA ABON ESCALONA ALBA ITALIANO 15-17 214 ALEMÁN CORDERO DANIEL ITALIANO 15-17 214 ALVAREZ NOMBELA LAURA ITALIANO 15-17 214 ALVAREZ RODRIGUEZ NATALIA ITALIANO 15-17 214 AMERIGO L?PEZ LAURA ITALIANO 15-17 214 BAEZA CANTO MARÍA ITALIANO 15-17 214 BARAHONA SÁNCHEZ SOFÍA

Rey Juan Carlos, Universidad

222

Effects of aqueous extracts of Hibiscus macranthus and Basella alba in mature rat testis function  

Microsoft Academic Search

Mature male albino Wistar rats (180220 g) were given by gastric intubation Hibiscus macranthus Hochst A ex Rich (Malvaceae) and Basella alba L. (Basellaceae) aqueous extract from both fresh and dry leaves, at a dose equivalent to 0.720 or 0.108 g of plant, respectively per kg body weight. This was to evaluate their effects on male reproductive function. Control groups

F. P Moundipa; P Kamtchouing; N Koueta; Justine Tantchou; N. P. R Foyang; Flicit T Mbiapo

1999-01-01

223

Exploring the metal phytoremediation potential of three Populus alba L. clones using an in vitro screening  

Microsoft Academic Search

PurposeThis work was planned for providing a useful screening tool for the selection of Populus alba clones suitable for phytoremediation techniques. To this aim, we investigated variation in arsenic, cadmium, copper, and\\u000a zinc tolerance, accumulation and translocation in three poplar clones through an in vitro screening. Poplars have been widely\\u000a proposed for phytoremediation, as they are adaptable to grow on

Sara Di Lonardo; Maurizio Capuana; Miluscia Arnetoli; Roberto Gabbrielli; Cristina Gonnelli

2011-01-01

224

Anticarcinogenic effect of Nymphaea alba against oxidative damage, hyperproliferative response and renal carcinogenesis in Wistar rats.  

PubMed

The present study investigates the prophylactic effect of Nymphaea alba against ferric nitrilotriacetate (Fe-NTA)-induced renal oxidative stress, hyperproliferative response and renal carcinogenesis in Wistar rats. Treatment with Fe-NTA (9 mg Fe/kg body weight, intraperitoneally) enhanced iron-ascorbate-induced renal lipid peroxidation, xanthine oxidase, gamma-glutamyl transpeptidase and hydrogen peroxide (H2O2) generation with reduction in renal glutathione content, antioxidant enzymes, viz., glutathione peroxidase, glutathione reductase, catalase, glucose-6-phosphate dehydrogenase and phase-II metabolising enzymes such as glutathione-S-transferase and quinone reductase. It also elevated the levels of blood urea nitrogen, serum creatinine, ornithine decarboxylase (ODC) activity and thymidine [3H] incorporation into renal DNA. It also enhanced DEN-initiated renal carcinogenesis by increasing the percentage incidence of renal tumors. Treatment of rats orally with N. alba (100 and 200 mg/kg body weight) resulted in significant decrease in gamma-glutamyl transpeptidase, lipid peroxidation, xanthine oxidase, H2O2 generation, blood urea nitrogen, serum creatinine, renal ODC activity, DNA synthesis (p < 0.001) and incidence of tumors. Renal glutathione content (p < 0.01), glutathione metabolizing enzymes (p < 0.001) and antioxidant enzymes were also recovered to significant level (p < 0.001). Thus, our results show that N. alba is a potent chemopreventive agent and suppresses Fe-NTA-induced oxidative stress, hyperproliferative response and renal carcinogenesis in Wistar rats. PMID:15881650

Khan, Naghma; Sultana, Sarwat

2005-03-01

225

Biochemical characterization of Silene alba alpha4-fucosyltransferase and Lewis a products.  

PubMed

alpha1,4-Fucosylation has been recently detected in Arabidopsis thaliana [Leonard et al. (2002), Glycobiology 12: 299-306], and corresponding enzymes have also been characterized in Beta vulgaris [Bakker et al. (2001), FEBS Lett, 507: 307-312], and Lycopersicum aesculentum [Wilson (2001), Glycoconjugate J., 18: 439-447]. Here we demonstrated fucosyltransferase activity (FucT) in Silene alba cells and tissues. The Fuc linkage to GlcNAc residues of the lactosamine moiety of the Type I acceptor was confirmed by mass spectrometry experiments. Le(a)-glycoconjugates are found in the Golgi apparatus and plasma membrane of plant cells. In planta, the highest levels of activity were detected in seedlings, young roots and male flowers. The enzyme was stable up to 45( composite function)C and the optimum pH of reaction was 8.0. The enzyme required Mg(2+) or Mn(2+) for activity and was inhibited by Zn(2+) and ethylenediaminetetraacetic acid. Chemical modification of the enzyme with group-selective reagents revealed that selective modifications of arginine and lysine residues had no effect on enzyme activity. However the enzyme contains histidine and tryptophan residues that are essential for its activity. In contrast to human FUT3, the S. alba alpha4-FucT was insensitive to N-ethylmaleimide (NEM) treatment. Measurement of enzyme activity in S. alba cell fractions indicated that the enzyme is bound to microsomal membranes, furthermore a soluble isoform of the protein may be present. PMID:15864437

Lonard, R; Lhernould, S; Carlu, M; Fleurat, P; Maftah, A; Costa, G

2005-02-01

226

Variao sazonal na sociabilidade de forrageamento das garas Ardea alba (Linnaeus, 1758) e Egretta thula (Molina, 1782) (Aves: Ciconiiformes) na plancie alagvel do alto rio Paran, Brasil  

Microsoft Academic Search

Seasonal variation in the foraging sociability of Great White Egret (Ardea alba) and Snowy Egret (Egretta thula) (Aves: Ciconiiformes) in the upper Paran river floodplain, Brazil. The seasonal variation of foraging sociability of Great White Egret (Ardea alba) and Snowy Egret (Egretta thula) on the lagoons of the upper Paran river floodplain, Brazil, was analyzed. Quarterly samplings of birds were

Mrcio Rodrigo

227

Relative contributions of sexual and asexual regeneration strategies in Populus nigra and Salix alba during the first years of establishment on a braided gravel bed river  

Microsoft Academic Search

Populus nigra L. var betulifolia and Salix alba L. var alba are early successional riparian tree species threatened throughout Continental Europe by significant changes to the natural physical processes governing their natural habitat geomorphologically active floodplains. River management activities have dramatically altered natural patterns of river flow and rates of sediment delivery along rivers, with possible consequences for the

Nadia Barsoum

2001-01-01

228

Uncorrected land-use planning highlighted by flooding: the Alba case study (Piedmont, Italy)  

NASA Astrophysics Data System (ADS)

Alba is a town of over 30 000 inhabitants located along the Tanaro River (Piedmont, northwestern Italy) and is famous for its wine and white truffles. Many important industries and companies are based in Alba, including the famous confectionery group Ferrero. The town suffered considerably from a flood that occurred on 5-6 November 1994. Forty-eight percent of the urban area was inundated, causing severe damage and killing nine people. After the flood, the Alba area was analysed in detail to determine the reasons for its vulnerability. Information on serious floods in this area since 1800 was gathered from official records, state technical office reports, unpublished documents in the municipal archives, and articles published in local and national newspapers. Maps, plans and aerial photographs (since 1954) were examined to reconstruct Alba's urban development over the last two centuries and the planform changes of the Tanaro River. The results were compared with the effects of the November 1994 flood, which was mapped from aerial photographs taken immediately after the flood, field surveys and eyewitness reports. The territory of Alba was subdivided into six categories: residential; public service; industrial, commercial and hotels; sports areas, utilities and standards (public gardens, parks, athletics grounds, private and public sport clubs); aggregate plants and dumps; and agriculture and riverine strip. The six categories were then grouped into three classes with different flooding-vulnerability levels according to various parameters. Using GIS, the three river corridors along the Tanaro identified by the Autorit di Bacino del Fiume Po were overlaid on the three classes to produce a final map of the risk areas. This study shows that the historic floods and their dynamics have not been duly considered in the land-use planning of Alba. The zones that were most heavily damaged in the 1994 flood were those that were frequently affected in the past and sites of more recent urbanisation. Despite recurrent severe flooding of the Tanaro River and its tributaries, areas along the riverbed and its paleochannels have been increasingly used for infrastructure and building (e.g., roads, a municipal dump, a prison, natural aggregate plants, a nomad camp), which has often interfered with the natural spread of the floodwaters. Since the 1994 flood, many remedial projects have been completed along the Tanaro and its tributaries, including levees, bank protection, concrete walls and floodway channels. In spite of these costly projects, some areas remain at high risk for flooding. The method used, which considered historical data, river corridors identified by hydraulic calculations, geomorphological aspects and land-use planning, can indicate with good accuracy flood-prone areas and in consequence to be an useful tool for the coherent planning of urban expansion and the mitigation of flood risk.

Luino, F.; Turconi, L.; Petrea, C.; Nigrelli, G.

2012-07-01

229

Heat shock protein 47 expression in aged normal human fibroblasts: modulation by Salix alba extract.  

PubMed

Heat shock protein (HSP) 47 is a specific chaperone of procollagen. This heat shock protein is responsible for the correct three-dimensional organization of procollagen and its control-quality prior secretion. The aim of the study is to evaluate the level of HSP 47 in aged, photoaged, and senescent fibroblasts and its modulation by a plant extract (Salix alba). The level of HSP 47 and/or procollagen expression in fibroblasts was measured by real-time RT-PCR (mRNA transcripts) and by flow cytometry (immunochemistry technique for measurement of arbitrary fluorescence intensity). Immunochemistry techniques and confocal microscopy were used to visualize the cellular localization of HSP 47 and procollagen. These parameters were compared with different age donors, nonsenescent, and senescent fibroblasts. Fibroblasts were irradiated by a noncytotoxic dose of UVA (6 J/cm(2)), and HSP 47 level was evaluated. S. alba extract was tested for its capacity to modulate HSP 47 expression. Colocalization of HSP 47 and procollagen was shown by confocal microscopy, indicating that HSP 47 could play a role of procollagen molecular chaperone in the cellular model. It was also shown that the HSP 47 level is decreased in old-donor cells, senescent, and irradiated cells. This decrease can be modulated by a S. alba extract (polyphenols rich) in a dose-dependent manner. The evaluation of HSP 47 expression in the experimental conditions can lead to a new approach of aging and photoaging, pointing out the implication of this chaperone in these pathophysiologic phenomena. Modulation of HSP 47 expression by this family of molecules could be of cosmetic and/or dermatologic interest. PMID:15247019

Nizard, Carine; Noblesse, Emmanuelle; Boisd, Ccille; Moreau, Marielle; Faussat, Anne-Marie; Schnebert, Sylvianne; Mah, Christian

2004-06-01

230

Transferability and characterization of nine microsatellite markers for the tropical tree species Tabebuia roseo-alba.  

PubMed

Microsatellite loci that were previously developed in the tropical tree Tabebuia aurea were used for the genetic analysis of Tabebuia roseo-alba populations. Nine of 10 simple sequence repeat markers were amplified, and the polymorphism was assessed in 58 individuals sampled from two stands in southeastern Brazil. All loci were polymorphic with Mendelian inheritance. The allele numbers were high, ranging from 5 to 13 in population I and 3 to 7 in population II, with means of 8.9 and 5.5, respectively. We conclude that these markers can be efficiently used for parentage and gene-flow studies. PMID:21564672

Feres, Juliana Massimino; Martinez, Marcelo L L; Martinez, Carlos A; Mestriner, Moacyr A; Alzate-Marin, Ana Lilia

2009-01-01

231

Optimization of the soft x-ray transmission microscopy beamline at the ALBA light source  

NASA Astrophysics Data System (ADS)

Mistral is the soft X-ray full field microscopy beamline at the ALBA light source. The beamline is designed to have large source acceptance and to provide constant magnification at the exit slit for photon energies between 270 and 2600 eV. The monochromator is a variation of the Petersen plane grating monochromator in which a variable line spacing grating is used to maintain the beam focused at the exit slit, independently of the fixed focus constant, and to cancel aberrations. We present the alignment strategy used to compensate errors of the optical elements, and report about the commissioning results.

Sorrentino, Andrea; Pereiro, Eva; Valcrcel, Ricardo; Ferrer, Salvador; Nicolas, Josep

2013-09-01

232

Two new ursolic acid saponins from Morina nepalensis var. alba Hand-Mazz.  

PubMed

A saponin-enriched fraction was prepared from the EtOH extract of the whole plant of Morina nepalensis var. alba Hand-Mazz. It showed ?-glucosidase inhibitory activity, from which two new triterpene saponins (1 and 2), along with one known saponin (3), were isolated. The structures of the new saponins were identified by spectroscopic analysis, including extensive 1D and 2D NMR techniques and hydrolysis followed by chromatographic analysis. The three saponins were assayed for ?-glucosidase inhibitory activities. PMID:23962075

Zhang, Zhi-feng; Lu, Lu-yang; Luo, Pei; Qing, Lin-sen; Liu, Yuan

2013-01-01

233

Pendimethalin phytotoxicity and seedling weed control in Indian spinach ( Basella alba L.)  

Microsoft Academic Search

Pot experiments were carried out in a screenhouse to evaluate pendimethalin effectiveness in pre-emergence weed control in Indian spinach (Basella alba L.). In the first trial, pendimethalin was applied at higher doses (0.33, 0.66, 0.99, 1.32, 1.98kgaiha?1), while in the second trial, lower doses (0.066, 0.132, 0.198, 0.264, 0.330kgaiha?1) were used. The treatments were arranged in a completely randomized design

M. A. K Smith

2004-01-01

234

Alba field cased hole horizontal gravel pack -- a team approach to design  

SciTech Connect

A 700 ft cased hole horizontal well was gravel packed and completed in the Alba Field, Central North Sea. The completion incorporated a number of new technologies adopted for a horizontal cased hole completion including both equipment and fluids. The zone was completed in 2 stages using a horizontal stack pack approach. Perforation packing was optimized by performing a staged acid prepack with the guns in the hole utilizing a low density synthetic gravel substitute in a shear thinning carrier fluid. This was a world first achievement at a cased hole gravel pack using the stack pack approach in a horizontal well. A solids free fluid loss control material was evaluated and chosen for the high permeability Alba Sands (3 Darcy). Extensive lab testing was performed to ensure minimal damage from various fluids. A 30 ft physical model was used to optimize annular pack efficiency. A gravel placement computer simulation was used to design pump rate, sand concentration and gel loading in order to optimize annular and perforation pack efficiency.

Alexander, K.; Winton, S.; Price-Smith, C.

1995-12-31

235

Alba Field cased hole horizontal gravel pack -- A team approach to design  

SciTech Connect

A 700 ft. cased hole horizontal well was gravel packed and completed in the Alba Field, Central North Sea. The completion incorporated a number of new technologies adopted for a horizontal cased hole completion including both equipment and fluids. The zone was completed in 2 stages using a horizontal stack pack approach. Perforation packing was optimized by performing a staged acid prepack with the guns in the hole utilizing a low density synthetic gravel substitute in a shear thinning carrier fluid. This was a world first achievement at a cased hole gravel pack using the stack pack approach in a horizontal well. A solids free fluid loss control material was evaluated and chosen for the high permeability Alba sands (3 Darcy). Extensive lab testing was performed to ensure minimal damage from various fluids. A 30 ft. physical model was used to optimize annular pack efficiency. A gravel placement computer simulation was used to design pump rate, sand concentration and gel loading in order to optimize annular and perforation pack efficiency.

Alexander, K.; Winton, S.; Price-Smith, C.

1995-12-31

236

Alba Field cased-hole horizontal gravel pack: A team approach to design  

SciTech Connect

A 700-ft cased-hole horizontal well was gravel packed and completed in the Alba Field, central North Sea. The completion incorporated a number of new technologies adopted for a horizontal cased-hole completion, including both equipment and fluids. The zone was completed in two stages using a horizontal stack-pack approach. Perforation packing was optimized by performing a staged acid prepack with the guns in the hole using a low-density synthetic gravel substitute in a shear thinning carrier fluid. This was a world-first achievement at a cased-hole gravel pack using the stack-pack approach in a horizontal well. A solids-free fluid-loss control material was evaluated and chosen for the high-permeability Alba sands (3 darcies). Extensive lab testing was performed to ensure minimal damage from various fluids. A 30-ft physical model was used to optimize annular pack efficiency. A gravel placement computer simulation was used to design pump rate, sand concentration, and gel loading to optimize annular and perforation-pack efficiency.

Alexander, K. [Chevron U.K. Ltd., London (United Kingdom); Winton, S. [Baker Hughes INTEQ, Aberdeen (United Kingdom); Price-Smith, C. [Dowell Schlumberger, Aberdeen (United Kingdom)

1996-03-01

237

[Application of herbal medicine alba in treatment of patients with the pathology of thyroid].  

PubMed

High prevalence of hyperplastic and autoimmune diseases of thyroid in Ukrainian population is determined by endemic deficit of iodine and selenium. The aim of this research was to assess the place of biologically-active additions on the basis of herbal material containing an iodine and selenium in prophylaxis and treatment of thyroid pathology. During the six month period 55 patients received herbal preparation Alba twice a day. The levels of TSH, volume of thyroid, the sizes of nodular goiter (ultrasound investigation) were measured before and at the end of the investigation. The levels of thyroid stimulating antibodies to TSH receptor (AB-r TSH) were evaluated in patients with hyperthyroidism. The results of Alba application showed that in patients with thyroid pathology (diffuse nontoxic goiter, hyperthyroidism and chronic thyroiditis) it was possible to reduce the volume of thyroid, normalize its function, and decrease the level of AB-r TSH in diffuse toxic goiter. We also found approximately 20 % shortening of the time needed to get target level of TSH and finally the duration of treatment of thyrotoxicosis. PMID:23786024

Kiselva, I A; Tplaia, E V; Kaminski?, A V

2012-12-01

238

[Structure of the endosperm in the mature seed of Melilotus alba].  

PubMed

The results of the exam at the light, the fluorescence and the scanning electron microscope of the endosperm of Melilotus alba mature impermeable seeds are reported. Cryostat sections, semithin sections and squashes are observed. Melilotus alba endosperm is variable in thickness and envelopes cotyledons and radicle. Its "aleurone" layer is one-cell thick, while the number of layers of its internal cells varies in relation to the location in the seed. In the aleurone cells, the cytoplasm and the outer portion of the wall are autofluorescent; tannic acid-ferric chloride stains the outer portion of the wall and allows to see clearly the inner thickenings, DAPI and haematoxylin demonstrate the presence of the nucleus. The cytoplasm of these cells is coloured by Sudan black b, and its fluorescence is enhanced by auramine and calcofluor white. Calcofluor white enhances the fluorescence of the outer portion of these walls, too, but is without effect on the non-autofluorescent thickening, indicating presence of cellulose only in the first case. Callose is absent. Also the thin autofluorescent walls of the endosperm inner cells react positively to calcofluor. These cells are very large, almost completely filled with "gelatinous" substances--the galactomannans--and very rarely contain a nucleus. PMID:1710471

Bevilacqua, L; Roti-Michelozzi, G; Ivaldi, M

1990-11-01

239

Comparative genome mapping among Populus adenopoda, P. alba, P. deltoides, P. euramericana and P. trichocarpa.  

PubMed

Among the genus Populus, the sections Populus (white poplar), Aigeiros Duby (black poplar) and Tacamahaca Spach contain many tree species of economical and ecological important properties. Two parental maps for the inter-specific hybrid population of Populus adenopoda P. alba (two species of Populus section) were constructed based on SSR and SRAP markers by means of a two-way pseudo-test cross mapping strategy. The same set of SSR markers developed from the P. trichocarpa (belonging to Tacamahaca section) genome which were used to construct the maps of P. deltoides and P. euramericana (two species of Aigeiros section) was chosen to analyze the genotype of the experimental population of P. adenopoda P. alba. Using the mapped SSR markers as allelic bridges, the alignment of the white and black poplar maps to each other and to the P. trichocarpa physical map was conducted. The alignment showed high degree of marker synteny and colinearity and the closer relationship between Aigeiros and Tacamahaca sections than that of Populus and Tacamahaca. Moreover, there was evidence for the chromosomal duplication and inter-chromosomal reorganization involving some poplar linkage groups, suggesting a complicated course of fission or fusion in one of the lineages. A poplar consensus map based on the comparisons could be constructed will be useful in practical applications including marker assisted selection. PMID:22214594

Wang, Yuanxiu; Zhang, Bo; Sun, Xiaoyan; Tan, Biyue; Xu, Li-An; Huang, Minren; Wang, Mingxiu

2011-01-01

240

The antibiotic planosporicin coordinates its own production in the actinomycete Planomonospora alba.  

PubMed

Planosporicin is a ribosomally synthesized, posttranslationally modified peptide lantibiotic produced by the actinomycete Planomonospora alba. It contains one methyl-lanthionine and four lanthionine bridges and inhibits cell wall biosynthesis in other Gram-positive bacteria probably by binding to lipid II, the immediate precursor for cell wall biosynthesis. Planosporicin production, which is encoded by a cluster of 15 genes, is confined to stationary phase in liquid culture and to the onset of morphological differentiation when P. alba is grown on agar. This growth phase-dependent gene expression is controlled transcriptionally by three pathway-specific regulatory proteins: an extracytoplasmic function ? factor (PspX), its cognate anti-? factor (PspW), and a transcriptional activator (PspR) with a C-terminal helix-turn-helix DNA-binding domain. Using mutational analysis, S1 nuclease mapping, quantitative RT-PCR, and transcriptional fusions, we have determined the direct regulatory dependencies within the planosporicin gene cluster and present a model in which subinhibitory concentrations of the lantibiotic function in a feed-forward mechanism to elicit high levels of planosporicin production. We show that in addition to acting as an antibiotic, planosporicin can function as an extracellular signaling molecule to elicit precocious production of the lantibiotic, presumably ensuring synchronous and concerted lantibiotic biosynthesis in the wider population and, thus, the production of ecologically effective concentrations of the antibiotic. PMID:23776227

Sherwood, Emma J; Bibb, Mervyn J

2013-07-01

241

Healing potential of Datura alba on burn wounds in albino rats.  

PubMed

Datura alba Nees (Solanaccae) is popular all over the world for its medicinal uses in asthma, muscle spasm, whooping cough, hemorrhoids, skin ulcers, etc. In India, it is widely used traditionally for the relief of rheumatism and other painful affections. Ayurveda and Siddha practitioners use oil based preparations of this plant from ancient days to till date for all types of wounds. Hence, the present study was chosen to evaluate its scientific validity. The alcohol extract of the D. alba leaves were investigated for the evaluation of its healing efficiency on burn wound models in rats. The crude alcohol extract and one of the fractions exhibited antimicrobial effect against all the pathogens studied. A 10% (w/w) formulation of alcoholic extract was topically applied on thermal wounds. Complete wound closure was observed within 12 days in treated rats. The effect produced by the ointment, in terms of wound contracting ability, wound closure time, tissue regeneration at the wound site and histopathological characteristics were significant in treated rats. Collagen, hexosamine and gelatinase expressions were also well correlative with the healing pattern observed. The present study thus provides a scientific rationale for the traditional use of this plant in the management of wounds. PMID:12426086

Priya, K Shanmuga; Gnanamani, A; Radhakrishnan, N; Babu, Mary

2002-12-01

242

The antibiotic planosporicin coordinates its own production in the actinomycete Planomonospora alba  

PubMed Central

Planosporicin is a ribosomally synthesized, posttranslationally modified peptide lantibiotic produced by the actinomycete Planomonospora alba. It contains one methyl-lanthionine and four lanthionine bridges and inhibits cell wall biosynthesis in other Gram-positive bacteria probably by binding to lipid II, the immediate precursor for cell wall biosynthesis. Planosporicin production, which is encoded by a cluster of 15 genes, is confined to stationary phase in liquid culture and to the onset of morphological differentiation when P. alba is grown on agar. This growth phase-dependent gene expression is controlled transcriptionally by three pathway-specific regulatory proteins: an extracytoplasmic function ? factor (PspX), its cognate anti-? factor (PspW), and a transcriptional activator (PspR) with a C-terminal helix-turn-helix DNA-binding domain. Using mutational analysis, S1 nuclease mapping, quantitative RT-PCR, and transcriptional fusions, we have determined the direct regulatory dependencies within the planosporicin gene cluster and present a model in which subinhibitory concentrations of the lantibiotic function in a feed-forward mechanism to elicit high levels of planosporicin production. We show that in addition to acting as an antibiotic, planosporicin can function as an extracellular signaling molecule to elicit precocious production of the lantibiotic, presumably ensuring synchronous and concerted lantibiotic biosynthesis in the wider population and, thus, the production of ecologically effective concentrations of the antibiotic. PMID:23776227

Sherwood, Emma J.; Bibb, Mervyn J.

2013-01-01

243

ROEDORES EN LA DIETA DE DOS AVES RAPACES NOCTURNAS (BUBO VIRGINIANUS Y TYTO ALBA) EN EL NORESTE DE DURANGO, MXICO  

Microsoft Academic Search

We studied the diet of two species of owls, and assessed the rodents communities and their relative densities from March 1996 through February 1997 in the Mapim Biosphere Reserve, Durango, Mxico: Great Horned Owl (Bubo virginianus) and Barn Owl (Tyto alba). The objectives were to understand the predator-prey relationships by comparing the availability and use of rodents by these owls.

Elizabeth E. ARAGN; Benjamn CASTILLO; Alfredo GARZA

244

Net production relations of three tree species at Oak Ridge, Tennessee. [Liriodendron tulipifera; Quercus alba; Pinus echinata  

Microsoft Academic Search

Measurement of productivity of forests is a difficult problem which has been variously approached. Results from an exploratory application of one approach (Whittaker 1961) to trees of three species - Liriodendron tulipifera (tulip tree or yellow poplar), Quercus alba (white oak), and Pinus echinata (shortleaf pine) - are reported here. The trees were felled in a logging operation at Oak

R. H. Whittaker; N. Cohen; J. S. Olson

2009-01-01

245

The fine sand Abra alba community of the bay of morlaix twenty years after the Amoco Cadiz oil spill  

Microsoft Academic Search

The fine sand Abra alba community from the Bay of Morlaix (western English Channel) was strongly affected by the Amoco Cadiz oil spill of April 1978. The long term changes in the community (19771996) show that reconstitution of this community is slow (over 10 yr). A progressive recolonization by amphipod Ampelisca populations constituting the dominant species is observed. The results

J-C Dauvin

1998-01-01

246

An energy-circuit population model for Great Egrets ( Ardea alba) at Lake Okeechobee, Florida, U.S.A  

Microsoft Academic Search

I simulated the annual population cycles of Great Egrets (Ardea alba) at Lake Okeechobee, Florida, to provide a framework for evaluating the local population dynamics of nesting and foraging wading birds. The external forcing functions were solar energy, minimum air temperature, water depth, surface-water drying rate, and season. Solar input controlled the production of prey at moderate to high lake

Jeff P. Smith

1997-01-01

247

Toxicity of eight polycyclic aromatic compounds to red clover ( Trifolium pratense), ryegrass ( Lolium perenne), and mustard ( Sinapsis alba)  

Microsoft Academic Search

The effect of eight polycyclic aromatic compounds (PACs) on the seed emergence and early life-stage growth of three terrestrial plants (Sinapsis alba, Trifolium pratense and Lolium perenne) were studied in a greenhouse, using a Danish agricultural soil with an organic carbon content of 1.6%. After three weeks of exposure, seed emergence and seedling weight (fresh weight and dry weight) were

Line E. Sverdrup; Paul Henning Krogh; Torben Nielsen; Christian Kjr; Jrgen Stenersen

2003-01-01

248

Erwinia salicis as the cause of dieback in Salix alba in the Netherlands and its identity with Pseudomonas saliciperda  

Microsoft Academic Search

Research on a bacterial disease of willow (Salix alba) has been carried out in the Netherlands. Isolations made from diseased branches yielded a peritrichous bacterium which proved to beErwinia salicis (Day) Chester. Evidence of its identity withPseudomonas saliciperda Lindeijer is demonstrated.

J. Gremmen; M. De Kam

1970-01-01

249

Genetic characterization of Salix alba L. and Salix fragilis L. by means of different PCR-derived marker systems  

Microsoft Academic Search

Salix alba L. and Salix fragilis L. are two closely related willow species whose phenotypic features, showing a large and continuous variation, have a low diagnostic value for identifying pure species and interspecific hybrids. In this paper, the effectiveness of different multilocus PCR-based molecular markers, such as I-SSRs, RAPDs and AFLPs in detecting genetic polymorphisms able to discriminate the two

S. Meneghetti; G. Barcaccia; P. Paiero; M. Lucchin

2007-01-01

250

Impact of flowering phenology of Silene alba and S-dioica on susceptibility to fungal infection and seed predation  

Microsoft Academic Search

Timing of the production of susceptible host stages can have a large impact on a plant's probability of infection by pathogens and on the extent of damage caused by herbivores. In the closely related plant species Silene alba and S. dioica, flowers are the site of infection by the host-sterilizing anther smut fungus Ustilago violacea, as well as the site

A. Biere; S. C. Honders

1996-01-01

251

Exogenous stimulation with Eclipta alba promotes hair matrix keratinocyte proliferation and downregulates TGF-?1 expression in nude mice.  

PubMed

Eclipta alba (L.) Hassk (E.alba) is a traditionally acclaimed medicinal herb used for the promotion of hair growth. However, to the best of our knowledge, no report has been issued to date on its effects on genetically distorted hair follicles (HFs). In this study, we aimed to identify an agent (stimuli) that may be beneficial for the restoration of human hair loss and which may be used as an alternative to synthetic drugs. We investigated the effects of petroleum ether extract (PEE) and different solvent fractions of E.alba on HFs of nude mice. Treatment was performed by topical application on the backs of nude mice and the changes in hair growth patterns were evaluated. Histological analysis was carried out to evaluate the HF morphology and the structural differences. Immunohistochemical (IHC) staining was performed to visualize follicular keratinocyte proliferation. The histological assessments revealed that the PEE-treated skin specimens exhibited prominent follicular hypertrophy. Subsequently, IHC staining revealed a significant increase (p<0.001) in the number of follicular keratinocytes in basal epidermal and matrix cells. Our results also demonstrated that PEE significantly (p<0.001) reduced the levels of transforming growth factor-?1 (TGF-?1) expression during early anagen and anagen-catagen transition. Our results suggest that PEE of E.alba acts as an important exogenous mediator that stimulates follicular keratinocyte proliferation and delays terminal differentiation by downregulating TGF-?1 expression. Thus, this study highlights the potential use of PEE of E.alba in the treatment of certain types of alopecia. PMID:25484129

Begum, Shahnaz; Lee, Mi Ra; Gu, Li Juan; Hossain, Jamil; Sung, Chang Keun

2015-02-01

252

Growth enhancement of Quercus alba saplings by CO[sub 2] enrichment under field conditions  

SciTech Connect

White oak (Quercus alba L.) trees were grown in soil under field conditions for four growing seasons in open-top chambers containing ambient air continuously enriched with 0, 150, or 300 [mu]mol/mol CO[sub 2]. The trees were significantly larger in elevated CO[sub 2]: whole-tree mass (including woody roots) was 36% greater in +150 and 140% greater in +300 compared to ambient-grown trees. There were no significant effects of CO[sub 2] concentration on root-to-shoot or leaf area ratios. The stimulatory effect of CO[sub 2] occurred during seedling establishment, and there was no effect of CO[sub 2] on relative growth rate after the first field season. However, photosynthesis remained consistently higher in elevated CO[sub 2], foliar respiration was reduced, and fine root density and CO[sub 2] efflux from the soil were higher, as previously reported with yellow- poplar trees.

Norby, R.J.; O'Neill, E.G.; Wullschleger, S.D.; Gunderson, C.A.; Nietch, C.T. (Oak Ridge National Lab., TN (United States))

1993-06-01

253

Shallow Fluvial valleys on Alba Patera, Mars from HRSC/MEX analysis: Limited snowmelt episode  

NASA Astrophysics Data System (ADS)

The distribution of valley networks on whole Alba Patera and their pattern suggest that they formed by runoff controlled by topographic slope and lithology. However, 3D characteristics of valleys do not suggest a sustained fluvial activity unlike what we could derive by their 2D properties such as the high drainage density. Episodic snowmelt following snow deposition could be at the origin of these shallow valleys. Melting can be due either to the volcano geothermal activity (valleys possibly formed coevally to volcanic activity), or to transient climatic episodes during the Late Hesperian/Early Amazonian periods that may have been recorded in other locations on Mars. Relationships with ice-rich mantling and age of valleys are not consistent with a melting of this mantling deposited during periods of high obliquity [7] in the recent history of Mars [8]. EPSC Abstracts Vol. 6, EPSC-DPS2011-1742, 2011 EPSC-DPS Joint Meeting 2011 c Author(s) 2011

Ansan, V.; Mangold, N.

2011-10-01

254

Trends in North American small mammals found in common barn-owl (Tyto alba) dietary studies  

USGS Publications Warehouse

Data on mammals were compiled from published studies of common barn-owl (Tyto alba) pellets. Mammalian composition of pellet samples was analyzed within geographic regions in regard to year, mean annual precipitation, latitude, and number of individual mammals in the sample. Percentages of individuals in pellets that were shrews increased whereas the percentages of rodents decreased with greater mean annual precipitation, especially in northern and western areas of North America. From the 1920s through 1980s, in northern and eastern areas the percentage of species that was shrews decreased, and in northern and central areas the percentage of individuals that was murid rats and mice increased. Human alterations of habitats during these seven decades are postulated to have caused changes in available small mammals, leading to changes in the barn-owl diet.

Clark, D.R., Jr.; Bunck, C.M.

1991-01-01

255

An integrated approach to the development of the Alba Field in the UK North Sea  

SciTech Connect

The Alba Field is located in UK Block 16/26, about 200 kilometers off the east coast of Scotland. It is a stratigraphic trap composed of fine to very fine grained sandstone. The depositional model is one of a pre-cut channel situated near the base of the palaeo slope, subsequently filled by pre-sorted sand shed from the shelf and upper slope. The reservoir is encased in hemipelagic shales which form the vertical and lateral seals. Horizontal wells form a major part of the development plan for Alba. Chevron operates a multidiscipline team system whereby all technical functions are involved from the early stages of planning through drilling to completion of the horizontal well. The objective is the optimization of ultimate hydrocarbon recovery. Once the initial objectives of a horizontal well are determined, a flexible approach is then adopted throughout the drilling phase when all available geological information is assessed as it is acquired, allowing a change in the well path to take account of the geological section encountered. Although pilot holes are the preferred method of defining the top of the reservoir, this option is not always cost effective and many of the producing wells are drilled without the benefit of these additional data. The development program utilizes an integrated approach to maximize the information being gathered while drilling the wells in order that the optimum well path can be achieved. The interactive application of the wellsite biostratigraphy, real-time formation evaluation logging while drilling, directional survey and continually updated 3D seismic interpretation result in the wells being geosteered very close to the top of the reservoir, minimizing the amount of potential attic oil.

Wilkinson, C.; Flanagan, K.; Way, D. [Chevron Europe and Middle East, Aberdeen (United Kingdom)

1995-08-01

256

Antioxidant activity of combined ethanolic extract of Eclipta alba and Piper longum Linn.  

PubMed

The in-vitro free radical scavenging efficacy of the combined ethanolic Biherbal extract (BHE) from equal quantities of the leaves of Eclipta alba and seeds of Piper longum was investigated. This was compared with its individual preparation of ethanolic extract of Eclipta alba (EAE) and ethanolic extract of Piper longum (PLE). The 1, 1, diphenyl -2-picrylhydrazyl (DPPH), super oxide, nitric oxide, hydroxyl radical scavenging activity and reducing power from BHE, EAE, and PLE were investigated employing various established in vitro systems. Total phenolic and flavonoid content were also determined. The results revealed that BHE has notable activity in quenching of DPPH, super oxide, nitric oxide, and hydroxyl radicals when compared to its individual preparation of EAE and PLE. The BHE at 1000?g/ml showed maximum scavenging of DPPH (88.75%) super oxide (84.78%) nitric oxide (89.02%) and hydroxyl (82.82%) against the scavenging of EAE and PLE which showed DPPH (81.77%,83.54%) super oxide (79.88 1.84, 80.88 1.44%) nitric-oxide (76.14 1.80, 77.2 1.18%) and hydroxyl (79.86%, 74.64%) radicals respectively at the same concentration. A linear correlation between BHE and reducing power was also observed. The quantitative estimation of the extract revealed the considerable amount of phenols and flavonoids. The results of this study strongly indicate that the BHE has more potent antioxidant potential action than its individual preparation EAE or PLE. PMID:22718673

Ramesh, Vasuki; Hari, Rajeswary; Pandian, Samudram; Arumugam, Geetha

2011-01-01

257

Radical Scavenging Activity of the Essential Oil of Silver Fir (Abies alba)  

PubMed Central

The essential oil of silver fir (Abies alba) is known to help respiratory system and have easing and soothing effect for muscle. In the present study, we investigated the chemical composition, cytotoxicity and its biological activities of silver fir (Abies alba) essential oil. The composition of the oil was analyzed by GC-MS and bornyl acetate (30.31%), camphene (19.81%), 3-carene (13.85%), tricyclene (12.90%), dl-limonene (7.50%), ?-pinene (2.87%), caryophyllene (2.18%), ?-phellandrene (2.13%), borneol (1.74%), bicyclo[2.2.1]hept-2-ene,2,3-dimethyl (1.64%) and ?-terpinene (1.24%) were the major components in the oil. The results tested by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay indicated that the oil showed no cytotoxic effect, at concentrations of 1 and 5%, for as long as 24 and 3h, respectively. The antiradical capacity was evaluated by measuring the scavenging activity of the essential oil on the 2,20-diphenylpicrylhydrazyl (DPPH) and 2,2'-azino-bis 3-ethyl benzothiazoline-6-sulfonic acid (ABTS) radicals. The oil was able to reduce the both radicals dose-dependently, and the concentration required for 50% reduction (RC50) against DPPH radicals (2.70.63%) was lower than ABTS radicals (8.50.27%). The antibacterial activity of the oil was also evaluated using disc diffusion method against Staphylococcus aureus, Streptococcus mutans, Listeria monocytogenes, Acinetobacter baumannii, Escherichia coli, and Vibrio parahaemolyticcus. The oil exhibited no antibacterial activity against all the bacterial strains tested except S. aureus of mild activity. PMID:19430614

Yang, Seun-Ah; Jeon, Sang-Kyung; Lee, Eun-Jung; Im, Nam-Kyung; Jhee, Kwang-Hwan; Lee, Sam-Pin; Lee, In-Seon

2009-01-01

258

Capacity of thermomonospora alba XylA to impart thermostability in family F/10 chimeric xylanases.  

PubMed

To reveal structure-function relationships of family F/10 glycanases, an in vitro molecular level shuffling experiment was conducted to accumulate useful amino acid residues from two homologous F/10 xylanases, FXYN of Streptomyces olivaceoviridis E-86 and XylA of Thermomonospora alba ULJB1, into a single chimeric xylanase. The parent genes were shuffled by crossovers at selected module borders using self-priming Polymerase Chain Reaction (PCR)s. The shuffled constructs, designated as FXYN-M3/4-XylA, FXYN-M9/10-XylA, and FXYN-M14/15-XylA were cloned and their nucleotide sequences were confirmed. Two chimera, FXYN-M3/4-XylA and FXYN-M14/15-XylA, demonstrated activity against RBB-xylan and were over-expressed as His-tag fusion proteins under control of T5 promoter of pQE60. The homogeneously pure chimeric proteins, FXYN-M3/4-XylA and FXYN-M14/15-XylA showed improved thermal and pH profiles compared to those of one of the parents, FXYN. This was apparently due to the influence of amino acids inherited from thermophilic XylA. Measured K(m) and kcat values were closer to those of the other parent, XylA. Interestingly, a significant level of heat tolerance up to 60 degrees C, was recorded for FXYN-M3/4-XylA in comparison to only 40 degrees C for FXYN-M14/15-XylA though their temperature optima did not correlates with their thermal stability. These results indicated that the amino acid residues of the larger T. alba XylA DNA fragment present in FXYN-M3/4-XylA were responsible for inducing its thermal stability. PMID:11118593

Ahsan; Kaneko; Wang; Yura; Go; Hayash

2001-01-01

259

Postremediation dose assessment for the former Alba Craft Laboratory site, Oxford, Ohio  

SciTech Connect

Potential maximum radiation dose rates were calculated for the former Alba Craft Laboratory site in Oxford, Ohio, which was involved in machining of uranium metal in the 1950s for the U.S. atomic energy program. The site is not currently being used. The residual radioactive material guidelines (RESRAD) computer code, which implements the methodology described in the US Department of Energy`s (DOE`s) manual for establishing residual radioactive material guidelines, was sued in this evaluation. Three potential land use scenarios were considered for the former Alba Craft site; the scenarios vary with regard to the type of site use, time spent at the site by the exposed individual, and sources of food consumed. Scenario A (a possible land use scenario) assumed industrial use of the site; Scenario B (a likely future land use scenario) assumed residential use of the site; and Scenario C (a possible but unlikely land use scenario) assumed the presence of a resident farmer. For scenario A, it was assumed that any water used for domestic or industrial activities would be from uncontaminated off-site municipal sources. The water used for drinking, household purposes, and irrigation was assumed to be from uncontaminated municipal sources in Scenario B; groundwater drawn from a well located at the downgradient edge of the contaminated zone would be the only source of water for drinking, irrigation, and raising livestock in Scenario C. The results of the evaluation indicated that the DOE dose limit of 100 mrem/yr would not be exceeded for any of the scenarios analyzed. The potential maximum dose rates for Scenarios A, B, and C are 0.64, 2.0, and 11 mrem/yr, respectively.

Kamboj, S.; Nimmagadda, M.; Yu, C. [Argonne National Lab., IL (United States). Environmental Assessment Div.

1996-04-01

260

Cloning, expression in Streptomyces lividans and biochemical characterization of a thermostable endo-?-1,4-xylanase of Thermomonospora alba UL?JB1 with cellulose-binding ability  

Microsoft Academic Search

Several thermophilic actinomycetes were isolated from urban solid waste. One of them, Thermomonospora alba ULJB1, showed a broad degradative activity on xylan, cellulose, starch and other polymers. Xylanase and cellulase activities\\u000a were quantified and compared with those of Thermomonospora fusca. Genes encoding two different endo-?-1,4-xylanases were cloned from T.?alba ULJB1. One of them, xylA, was sequenced, subcloned and overexpressed in

J. Blanco; J. J. R. Coque; J. Velasco; J. F. Martn

1997-01-01

261

A validated HPLC method for the analysis of herbal teas from three chemotypes of Brazilian Lippia alba.  

PubMed

Infusions and decoctions of three chemotypes of Lippia alba (Mill.) N. E. Brown (Verbenaceae) were investigated for their quantitative profiles by HPLC-DAD-ESI-MS analyses. An RP-HPLC method was developed which permitted the quality control of the preparations. The correct choice of the column allowed the detailed characterization of the constituents in a total analysis time of 35min. The HPLC method was accordingly validated for linearity range, LOD, LOQ, accuracy and precision. For the quantitative analysis the three major phytochemical groups were taken into consideration, namely iridoids, phenylpropanoids and flavonoids. Comparative quantitative analyses revealed significant differences among the chemotypes that should be taken into account in the uses of the herbal teas. The developed HPLC-UV assay proved to be an efficient and alternative method for the discrimination of the three chemotypes. This is the first report of detailed analysis of the chemical composition of the constituents of L. alba chemotypes' teas. PMID:25577093

Timteo, Patrcia; Karioti, Anastasia; Leito, Suzana G; Vincieri, Franco Francesco; Bilia, Anna Rita

2015-05-15

262

Effects of atmospheric CO enrichment on the growth and mineral nutrition of Quercus alba seedlings in nutrient-poor soil  

Microsoft Academic Search

One-year-old dormant white oak (Quercus alba L.) seedlings were planted in a nutrient-deficient forest soil and grown for 40 weeks in growth chambers at ambient (362 microliters per liter) or elevated (690 microliters per liter) levels of CO. Although all of the seedlings became severely N deficient, CO enrichment enhanced growth by 85%, with the greatest enhancement in root systems.

R. J. Norby; E. G. ONeill; R. J. Luxmoore

1986-01-01

263

Chemical Composition, Mutagenic and Antimutagenic Activities of Essential Oils from (Tunisian) Artemisia campestris and Artemisia herba-alba  

Microsoft Academic Search

The essential oil composition from the aerial parts of Artemisia campestris var. glutinosa Gay ex Bess and Artemisia herba-alba Asso (Asteraceae) of Tunisian origin has been studied by GC and GC\\/MS. The main constituents of the oil from A. campestris collected in Benguerdane (South of Tunisia) were found to be ?-pinene (41.0%), p-cymene (9.9%), ?-terpinene (7.9%), limonene (6.5%), myrcene (4.1%),

Neffati Aicha; Skandrani Ines; Ben Sghaier Mohamed; Bouhlel Ines; Kilani Soumaya; Ghedira Kamel; Neffati Mohamed; Chraief Imed; Hammami Mohamed; Chekir-Ghedira Leila

2008-01-01

264

Accumulation and Distribution of Trivalent Chromium and Effects on Hybrid Willow ( Salix matsudana Koidz alba L.) Metabolism  

Microsoft Academic Search

The metabolic response of plants to exogenous supply and bioaccumulation of trivalent chromium (Cr3+ ) was investigated. Pre-rooted young hybrid willows (Salix matsudana Koidz alba L.) were exposed to hydroponic solution spiked with CrCl3 at 24.0C 1C for 192 hours. Various physiologic parameters of the plants were monitored to determine toxicity from Cr\\u000a exposure. The transpiration rate of

X.-Z. Yu; J.-D. Gu

2007-01-01

265

A genetic linkage map of Populus adenopoda Maxim.נ P. alba L. hybrid based on SSR and SRAP markers  

Microsoft Academic Search

Populus adenopoda Maxim. and P. alba L. [section Populus (aspen), genus Populus] are two tree species of ecological and economic value. To date, no high-density genetic maps are available for these two\\u000a species. In this study, 1100 interspecific hybrids were obtained by controlled crossing and embryo culture. Simple sequence\\u000a repeat (SSR) and sequence-related amplified polymorphisms (SRAP) were used to genotype

Yuanxiu Wang; Xiaoyan Sun; Biyue Tan; Bo Zhang; Li-an Xu; Minren Huang; Mingxiu Wang

2010-01-01

266

Characterisation and inheritance of nuclear microsatellite loci for use in population studies of the allotetraploid Salix alba Salix fragilis complex  

Microsoft Academic Search

We present nine polymorphic di- and tri-nucleotide repeat nuclear microsatellite markers selected specifically for their use\\u000a in high throughput studies concerning the dioecious allotetraploid Salix albaSalix fragilis willow complex. These taxa and their hybrids are difficult to discriminate using morphological characters. Thus, multiplex\\u000a reactions were developed for these microsatellite loci and their effectiveness to distinguish individuals, especially hybrids,\\u000a and their

Robert Andrew King; Sarah L. Harris; Angela Karp; Jacqueline H. A. Barker

2010-01-01

267

Projected benefit-cost analysis of agri-silvicultural system: vegetable crops intercropping with Salix alba (Willow)  

Microsoft Academic Search

An experiment upon an agri-silvicultural system involving Willow (Salix alba) tree, Kale (Brassica oleracea var. acephala) and Knol khol (Brassica oleracea var. caularapa) was laid in randomized block designed at farmers willow field at Shalimar near Sher-e-Kashmir University of Agricultural\\u000a Sciences and Technology of Kashmir, Srinagar India during 2005 and 2006. The main plot was divided into sub-spots with 8

Aijaz Hussain Mir; M. A. Khan

2008-01-01

268

Symplastic isolation of the sieve element-companion cell complex in the phloem of Ricinus communis and Salix alba stems  

Microsoft Academic Search

The anatomical and physiological isolation of the sieve element-companion cell complex (se-cc complex) was investigated in stems of Ricinus communis L. and Salix alba L. In Ricinus, the plasmodesmatal frequencies were in the proportions 8:1:2:30, in the order given, at the interfaces between sieve tube-companion cell, sieve tube-phloem parenchyma cell, companion cellphloem parenchyma cell, and phloem parenchyma cellphloem parenchyma cell.

Aart J. E. Bel; Ronald Kempers

1991-01-01

269

Lippia alba, Melissa officinalis and Cymbopogon citratus: effects of the aqueous extracts on the isolated hearts of rats  

Microsoft Academic Search

1.This research was developed to evaluate the actions of the aqueous extracts of leaves of Lippia alba, Melissa officinalis and Cymbopogon citratus upon contractile force (CF) and cardiac rate (CR).2.For the experiments in isolated heart, 21 male adult rats were used. The hearts were perfused according to Langendorffs method. The records of CF and CR were obtained in control and

Ruth Gazola; Denise Machado; Campos Ruggiero; Glenan Singi; Maringela Macedo Alexandre

2004-01-01

270

Survival and development of immature Harmonia axyridis (Pallas) feeding on Chaitophorus populeti (Panzer) propagated on transgenic Populus alba P. glandulosa  

Microsoft Academic Search

Laboratory feeding experiments with the poplar aphid, Chaitophorus populeti (Panzer), feeding on transgenic poplar (P. alba P. glandulosa) varieties C13-5 and C013-5, were carried out to study the effect of transgenic poplar on the ladybird Harmonia axyridis (Pallas). The mortality and development time of the immature stages, the eclosion rate and body mass of H. axyridis were measured. The

Xiao-fen Zhang; Min Chen; Bin-yu Zhang; You-qing Luo; Ying-jie Hou; Xiao-hua Su

2009-01-01

271

Endogenous levels of abscisic acid and gibberellins in leaf protoplasts competent for plant regeneration in Betula platyphylla and Populus alba  

Microsoft Academic Search

Differences in endogenous levels of abscisic acid and gibberellinsbetween Betula platyphylla and Populusalba leaf protoplasts were determined using micro-scale extractionand purification steps, including thin layer chromatography ormicro-high-performance-liquid-chromatography and quantification by enzymelinkedimmunosorbent assay or micro-bioassay. The content of abscisic acid was tentimes higher in B. platyphylla than in P.alba on the basis of both cell number and dry weight; in contrast,levels

H. Sasamoto; S. Ogita; Y. Wakita; M. Fukui

2002-01-01

272

Inhibition of potassium bromate-induced renal oxidative stress and hyperproliferative response by Nymphaea alba in Wistar rats.  

PubMed

KBrO3-mediated renal injury and hyperproliferative response in Wistar rats. In this communication, we report the efficacy of Nymphaea alba on KBrO3 (125 mg/kg body weight, intraperitoneally) caused reduction in renal glutathione content, renal antioxidant enzymes and phase-II metabolising enzymes with enhancement in xanthine oxidase, lipid peroxidation, gamma-glutamyl transpeptidase and hydrogen peroxide (H202). It also induced blood urea nitrogen, serum creatinine and tumor promotion markers, viz., ornithine decarboxylase (ODC) activity and DNA synthesis. Treatment of rats with Nymphaea alba (100 and 200 mg/kg body weight) one hour before KBrO3 (125 mg/kg body weight, i.p.) resulted in significant decreases in xanthine oxidase (P < 0.05), lipid peroxidation, gamma-glutamyl transpeptidase, H202 generation, blood urea nitrogen, serum creatinine, renal ODC activity and DNA synthesis (P < 0.001). Renal glutathione content, glutathione metabolizing enzymes and antioxidant enzymes were also recovered to significant levels (P < 0.001). These results show that Nymphaea alba acts as chemopreventive agent against KBrO3-mediated renal injury and hyperproliferative response. PMID:16119199

Khan, Naghma; Sultana, Sarwat

2005-06-01

273

Potential for phytoextraction of copper by Sinapis alba and Festuca rubra cv. Merlin grown hydroponically and in vineyard soils.  

PubMed

The extensive use of copper-bearing fungicides in vineyards is responsible for the accumulation of copper (Cu) in soils. Grass species able to accumulate Cu could be cultivated in the vineyard inter-rows for copper phytoextraction. In this study, the capacity of Festuca rubra cv Merlin and Sinapis alba to tolerate and accumulate copper (Cu) was first investigated in a hydroponic system without the interference of soil chemical-physical properties. After the amendment of Cu (5 or 10 mg Cu l-(1)) to nutrient solution, shoot Cu concentration in F. rubra increased up to 108.63 mg Cu kg(-1) DW, more than three times higher than in S. alba (31.56 mg Cu kg(-1) DW). The relationship between Cu concentration in plants and external Cu was dose-dependent and species specific. Results obtained from the hydroponic experiment were confirmed by growing plants in pots containing soil collected from six Italian vineyards. The content of soil organic matter was crucial to enhance Cu tolerance and accumulation in the shoot tissues of both plant species. Although S. alba produced more biomass than F. rubra in most soils, F. rubra accumulated significantly more Cu (up to threefold to fourfold) in the shoots. Given these results, we recommended that F. rubra cv Merlin could be cultivated in the vineyard rows to reduce excess Cu in vineyard soils. PMID:24234763

Malagoli, Mario; Rossignolo, Virginia; Salvalaggio, Nico; Schiavon, Michela

2014-03-01

274

Effect of plant density on competitiveness of Brassica napus, Sinapis alba and S. arvensis under water stress conditions.  

PubMed

Under Mediterranean climate, oilseed rape is subjected especially to the competition of weeds with respect to water. Herbicides registered for this crop do not effectively control species of the same family, in particular Sinapis alba and Sinapis arvensis. Moreover, there are no results of the effect of plant density on the competitiveness of these species. The purpose of this experiment was to determine if the competitiveness of the species varies according to the total density. The experiment was carried out in pots under greenhouse conditions, according to a replacement series method. Plant densities tested were 2, 4 and 8 plants per pot. The results of the replacement series diagram and those of relative crowding coefficients showed that Brassica napus was the most competitive, whatever the density is. This classification is explained primarily by leaf area. Indeed, the intraspecific competition due to B. napus has affected more its leaf area than the interspecific competition. Conversely, the intraspecific competition due to S. arvensis has less affected its leaf area than the interspecific competition. Regarding S. alba, the intraspecific competition effect was less severe than the interspecific competition effect due to B. napus and more severe than the interspecific competition effect due to S. arvensis on S. alba PMID:16363360

Maataoui, A; Talouizte, A; Benbella, M; Bouhache, M

2005-01-01

275

Analysis of the Complex Lineament System of Alba Patera, Mars, by Plate Flexure Modelling.  

NASA Astrophysics Data System (ADS)

Alba Patera is one of the most peculiar and outstretched volcanoes known in the Planetary System, measuring up to 2700 km across, with a relative elevation of 7 km. The edifice is constituted by a large shield volcano with flat apex of about 5 km elevation on which formed a younger 2 km high central cone. As reported from the Viking images, Alba Patera is characterised by numerous extensional fractures in predominantly north-south direction. These grabens curve around the summit at about 200 km distance, off-centre toward the east. Some similar structures but over a limited radial extent (i.e. Catenae) are observed at a further distance at the lower slope of the main shield. A few radial compressive features or wrinkle ridges have been also identified on the summit. Using the Finite Element code Tekton, we reconstructed the stress fields induced by deformation under volcanic load and/or subsurface forces with addition of a regional extensional stress from the Tharsis rise, paying heed to the effects of the used parameters and to the failure criterion. We show that 1) simulating the topographic load as vertical forces or pressures on an elastic plate of constant thickness neglects the internal deformation of the edifice itself and its contribution to the plate thickness, which may be, however, considerable for a thin plate. We added therefore the whole geometry of the edifice, that is the observed topography and the major portion that fills the plate subsidence, and introduced body forces. 2) The bisected shape of the volcano, mentioned above, results in a local zone of higher differential stresses on the flanks. We obtained three domains of fault-types, a) a region of thrust faults at the summit, b) followed by strike-slip faulting and c) surrounded by concentric normal faults, these with increasing distance from the load centre. The wideness of the fault domains, the positions and the amounts of stress difference maxima depend strongly on the thickness of the plate, the load size, the Young modulus and the particular shape of the load. We also demonstrate how the various fault-domains on the surface and through the edifice are modified by the addition of a regional extensional stress and/or subsurface forces.

Cailleau, B.; Janle, P.

2001-12-01

276

Do Uniparental Sanderlings Calidris alba Increase Egg Heat Input to Compensate for Low Nest Attentiveness?  

PubMed Central

Birds breeding in cold environments regularly have to interrupt incubation to forage, causing a trade-off between two mutually exclusive behaviours. Earlier studies showed that uniparental Arctic sandpipers overall spend less time incubating their eggs than biparental species, but interspecific differences in size and ecology were potential confounding factors. This study reports on a within-species comparison of breeding schedules and metal egg temperatures in uni- and biparental sanderlings (Calidris alba) in Northeast Greenland in relation to ambient temperature. We recorded incubation schedules with nest temperature loggers in 34 sanderling clutches (13 uniparentals, 21 biparentals). The temperature of a metal egg placed within the clutch of 17 incubating birds (6 uniparentals, 9 biparentals) was measured as an indicator of the heat put into eggs. Recess frequency, recess duration and total recess time were higher in uniparentals than in biparentals and positively correlated with ambient temperatures in uniparentals only. Uniparental sanderlings maintained significantly higher metal egg temperatures during incubation than biparentals (1.4C difference on average). Our results suggest that uniparental sanderlings compensate for the lower nest attendance, which may prolong the duration of the incubation period and negatively affect the condition of the hatchlings, by maintaining a higher heat flux into the eggs. PMID:21347377

Reneerkens, Jeroen; Grond, Kirsten; Schekkerman, Hans; Tulp, Ingrid; Piersma, Theunis

2011-01-01

277

Weak trophic interactions among birds, insects and white oak saplings (Quercus alba)  

USGS Publications Warehouse

We examined the interactions among insectivorous birds, arthropods and white oak saplings (Quercus alba L.) in a temperate deciduous forest under 'open' and 'closed' canopy environments. For 2 y, we compared arthropod densities, leaf damage and sapling growth. Saplings from each canopy environment were assigned to one of four treatments: (1) reference, (2) bird exclosure, (3) insecticide and (4) exclosure + insecticide. Sap-feeding insects were the most abundant arthropod feeding guild encountered and birds reduced sap-feeder densities in 1997, but not in 1998. Although there was no detectable influence of birds on leaf-chewer densities in either year, leaf damage to saplings was greater within bird exclosures than outside of bird exclosures in 1997. Insecticide significantly reduced arthropod densities and leaf damage to saplings, but there was no corresponding increase in sapling growth. Growth and biomass were greater for saplings in more open canopy environments for both years. Sap-feeder densities were higher on closed canopy than open canopy saplings in 1997, but canopy environment did not influence the effects of birds on lower trophic levels. Although previous studies have found birds to indirectly influence plant growth and biomass, birds did not significantly influence the growth or biomass of white oak saplings during our study.

Lichtenberg, J.S.; Lichtenberg, D.A.

2002-01-01

278

Emplacement of lava flow fields: Application of terrestrial studies to Alba Patera, Mars  

SciTech Connect

Morphological data are at present the major source of information for extraterrestrial lavas. Effusion conditions must therefore be inferred from the final shapes of flow fields, generally using terrestrial lavas as analogues and so presupposing similar emplacement regimes on Earth and other planets. Studies of terrestrial lavas suggest that the overall development of flow fields is systematic and that a general, normalized relation can be established linking the final dimensions of a flow field (specifically, average thickness and the ratio of maximum width to maximum length) to underlying slope and eruption duration, independent of explicit knowledge of discharge rate, gravitational acceleration, lava density, and rheology. This relation is applied to lavas on the Martian volcano Alba Patera, on which two distinct planimetric types of lava flow fields are identified, and eruption durations, average discharge rates, and average velocities are obtained. Imposing the constraint of a terrestrial emplacement regime, the model yields internally consistent results for subliquidus lavas and suggests that, at least for basaltic-basaltic andesitic compositions, the essential conditions of eruption may have been similar to those currently observed on Earth.

Lopes, R.M.C. (California Institute of Technology, Pasadena (USA)); Kilburn, C.R.J. (Centro Sorveglianza, Naples (Italy))

1990-08-30

279

Focusing and defocusing using mechanically corrected mirrors at the MX beamline at Alba  

NASA Astrophysics Data System (ADS)

A practical limitation of X-ray focusing mirrors is that, while providing nice gaussian photon distributions at the focal plane, they usually produce inhomogeneous beam profiles upon defocusing that are caused by the mirror polishing errors. This can become a limitation in order to match the beam size with the sample dimensions, as the sample is not uniformly illuminated. We outline a method to achieve well shaped unfocused beams that has been successfully proven at BL13-XALOC, the macromolecular crystallography beamline at the ALBA synchrotron. As received from the manufacturer, the mirrors had rms slope errors of 180 nrad rms (vertically focusing mirror, VFM) and 210 nrad rms (horizontally focusing mirror, HFM). Ray tracing simulations suggested that pronounced stripes arising from the surface waviness would appear upon defocusing. By using the elastic beam theory to model the deformations and calculating the necessary correcting forces exerted by a few mechanical actuators that were installed in the mirror mechanical holders, we were able to reduce the slope errors of the mirrors to 55 nrad rms (VFM) and 83 nrad rms (HFM). The corrected mirrors were installed at the beamline and they were tested with the X-ray beam from the undulator source.

Nicolas, J.; Ruget, C.; Juanhuix, J.; Benach, J.; Ferrer, S.

2013-03-01

280

Antioxidant and pro-oxidant evaluation of a Potentilla alba L. rhizome extract.  

PubMed

Using spectrophotometric methods, a H(2) O-soluble Potentilla alba L. rhizome extract was evaluated phytochemically, i.e., the total phenol, flavonoid, flavonol, flavanone, and proanthocyanidin contents were determined, and its antioxidant and pro-oxidant properties, i.e., the Fe(III) reductive and the Fe(II) chelating properties, the 1,1-diphenyl-2-picrylhydrazyl radical (DPPH(*)), N,N-dimethyl-p-phenylenediamine (DMPD(*+)), and superoxide anion radical (O2*-)-scavenging activities, the capacity to inhibit hydroxyl radical (HO(*))-mediated deoxy-D-ribose and phospholipid degradation, and the interaction with the Cu-catalyzed HO(*) -mediated DNA degradation, were determined. The extract was found to contain a range of phenolic compounds recognized to possess strong antioxidant-like properties. Moreover, the extract demonstrated dose-dependent activities in all the antioxidant assays with the exception of the DNA-degradation assay, where the components within the extract interfered with the assay components at concentrations ?1.00?mg/ml. Potentilla species are known for their curative properties, with aerial/subterranean parts being prescribed for numerous indications. The data presented here suggests, though does not conclude, that the rhizomes contain compounds possessing a range of antioxidant-related properties, which may underpin the therapeutic, viz., anti-inflammatory and adaptogenic effects, ascribed to species of this genus. PMID:21766455

Damien Dorman, H J; Shikov, Alexander N; Pozharitskaya, Olga N; Hiltunen, Raimo

2011-07-01

281

Chromium (VI) accumulation reduces chlorophyll biosynthesis, nitrate reductase activity and protein content in Nymphaea alba L.  

PubMed

Plants of Nymphaea alba L. grown at various levels of chromium (VI) ranging from 1 to 200 microM accumulated chromium in concentration and duration-dependent manner. At all Cr levels, chromium accumulation by various plant tissues followed the order roots > leaves > rhizomes. Approximately 93% of total chromium present in the medium was accumulated by plants at lowest conentration (1 microM) used in the experiment. Chromium-induced toxicity appears at 1 microM chromium resulting in the build-up of delta-aminolevulinic acid (ALA) and reduced activities of delta-aminolevulinic acid dehydratase (ALAD) and nitrate reductase (NR), total chlorophyll (Chl) and protein contents. Ch1a was more sensitive than Ch1b to chromium toxicity. It could be inferred that chromium toxicity is not located at the level of ALA synthesis, but, probably at the ALAD activity which was more severely affected during chlorophyll biosynthesis. Finally, impaired chlorophyll biosynthesis resulted in reduced total chlorophyll content. PMID:10879826

Vajpayee, P; Tripathi, R D; Rai, U N; Ali, M B; Singh, S N

2000-10-01

282

Evidences of local adaptation in quantitative traits in Prosopis alba (Leguminosae).  

PubMed

Signals of selection on quantitative traits can be detected by the comparison between the genetic differentiation of molecular (neutral) markers and quantitative traits, by multivariate extensions of the same model and by the observation of the additive covariance among relatives. We studied, by three different tests, signals of occurrence of selection in Prosopis alba populations over 15 quantitative traits: three economically important life history traits: height, basal diameter and biomass, 11 leaf morphology traits that may be related with heat-tolerance and physiological responses and spine length that is very important from silvicultural purposes. We analyzed 172 G1-generation trees growing in a common garden belonging to 32 open pollinated families from eight sampling sites in Argentina. The multivariate phenotypes differ significantly among origins, and the highest differentiation corresponded to foliar traits. Molecular genetic markers (SSR) exhibited significant differentiation and allowed us to provide convincing evidence that natural selection is responsible for the patterns of morphological differentiation. The heterogeneous selection over phenotypic traits observed suggested different optima in each population and has important implications for gene resource management. The results suggest that the adaptive significance of traits should be considered together with population provenance in breeding program as a crucial point prior to any selecting program, especially in Prosopis where the first steps are under development. PMID:25523543

Bessega, C; Pometti, C; Ewens, M; Saidman, B O; Vilardi, J C

2015-02-01

283

Herbicidal Activity of Glucosinolate Degradation Products in Fermented Meadowfoam (Limnanthes alba) Seed Meal  

PubMed Central

Meadowfoam (Limnanthes alba) is an oilseed crop grown in western Oregon. After extraction of the oil from the seeds, the remaining seed meal contains 2-4% of the glucosinolate, glucolimnanthin. We investigated the effect of fermentation of seed meal on its chemical composition and the effect of the altered composition on downy brome (Bromus tectorum) coleoptile emergence. Incubation of enzyme-inactive seed meal with enzyme-active seeds (1% by weight) resulted in complete degradation of glucolimnanthin and formation of 3-methoxybenzyl isothiocyanate in 28% yield. Fermentation in the presence of an aqueous solution of FeSO4 (10 mM) resulted in the formation of 3-methoxyphenylacetonitrile and 2-(3-methoxyphenyl)ethanethioamide, a novel natural product. The formation of the isothiocyanate, the nitrile and the thioamide, as a total, correlated with an increase of herbicidal potency of seed meal (r2 = 0.96). The results of this study open new possibilities for the refinement of glucosinolate-containing seed meals for use as bioherbicides. PMID:19170637

STEVENS, JAN F.; REED, RALPH L.; ALBER, SUSAN; PRITCHETT, LARRY; MACHADO, STEPHEN

2009-01-01

284

The potential of biomonitoring of air quality using leaf characteristics of white willow (Salix alba L.).  

PubMed

In this study, we assess the potential of white willow (Salix alba L.) as bioindicator for monitoring of air quality. Therefore, shoot biomass, specific leaf area, stomatal density, stomatal pore surface, and stomatal resistance were assessed from leaves of stem cuttings. The stem cuttings were introduced in two regions in Belgium with a relatively high and a relatively low level of air pollution, i.e., Antwerp city and Zoersel, respectively. In each of these regions, nine sampling points were selected. At each sampling point, three stem cuttings of white willow were planted in potting soil. Shoot biomass and specific leaf area were not significantly different between Antwerp city and Zoersel. Microclimatic differences between the sampling points may have been more important to plant growth than differences in air quality. However, stomatal pore surface and stomatal resistance of white willow were significantly different between Zoersel and Antwerp city. Stomatal pore surface was 20% lower in Antwerp city due to a significant reduction in both stomatal length (-11%) and stomatal width (-14%). Stomatal resistance at the adaxial leaf surface was 17% higher in Antwerp city because of the reduction in stomatal pore surface. Based on these results, we conclude that stomatal characteristics of white willow are potentially useful indicators for air quality. PMID:20033771

Wuytack, Tatiana; Verheyen, Kris; Wuyts, Karen; Kardel, Fatemeh; Adriaenssens, Sandy; Samson, Roeland

2010-12-01

285

Do uniparental sanderlings Calidris alba increase egg heat input to compensate for low nest attentiveness?  

PubMed

Birds breeding in cold environments regularly have to interrupt incubation to forage, causing a trade-off between two mutually exclusive behaviours. Earlier studies showed that uniparental Arctic sandpipers overall spend less time incubating their eggs than biparental species, but interspecific differences in size and ecology were potential confounding factors. This study reports on a within-species comparison of breeding schedules and metal egg temperatures in uni- and biparental sanderlings (Calidris alba) in Northeast Greenland in relation to ambient temperature. We recorded incubation schedules with nest temperature loggers in 34 sanderling clutches (13 uniparentals, 21 biparentals). The temperature of a metal egg placed within the clutch of 17 incubating birds (6 uniparentals, 9 biparentals) was measured as an indicator of the heat put into eggs. Recess frequency, recess duration and total recess time were higher in uniparentals than in biparentals and positively correlated with ambient temperatures in uniparentals only. Uniparental sanderlings maintained significantly higher metal egg temperatures during incubation than biparentals (1.4C difference on average). Our results suggest that uniparental sanderlings compensate for the lower nest attendance, which may prolong the duration of the incubation period and negatively affect the condition of the hatchlings, by maintaining a higher heat flux into the eggs. PMID:21347377

Reneerkens, Jeroen; Grond, Kirsten; Schekkerman, Hans; Tulp, Ingrid; Piersma, Theunis

2011-01-01

286

Sanderlings (Calidris alba) have a magnetic compass: orientation experiments during spring migration in Iceland.  

PubMed

The migratory orientation of sanderlings (Calidris alba) was investigated with cage experiments during the spring migration in southwest Iceland. Sanderlings were exposed to 90 degrees counterclockwise-shifted magnetic fields under both clear skies and natural overcast. Clear sky control tests resulted in a northerly mean direction, in agreement with predictions based on ringing recovery data and earlier visual observations of departing flocks. Sanderlings closely followed experimental deflections of magnetic fields when tested under clear skies. Control experiments under natural overcast resulted in a bimodal distribution approximately coinciding with the magnetic north-south axis. Overcast tests did not reveal any predictable response to the experimental treatment, but instead resulted in a non-significant circular distribution. The time of orientation experiments in relation to the tidal cycle affects the motivation of the birds to depart, as shown by the lower directional scatter of headings of individuals tested within the appropriate tidal window under clear skies. Sanderlings were significantly more likely to become inactive under overcast conditions than under clear sky conditions. The results demonstrate, for the first time, that a wader species such as the sanderling possesses a magnetic compass and suggest that magnetic cues are of primary directional importance. However, overcast experiments indicate that both celestial and geomagnetic information are needed for sanderlings to realize a seasonally appropriate migratory orientation. PMID:11003824

Gudmundsson, G A; Sandberg, R

2000-10-01

287

Sequence and expression characteristics of a nuclear-encoded chloroplast sigma factor from mustard (Sinapis alba).  

PubMed Central

Plant chloroplasts contain transcription factors that functionally resemble bacterial sigma factors. We have cloned the full-length cDNA from mustard (Sinapis alba) for a 53 kDa derived polypeptide that contains similarity to regions 1.2-4.2 of sigma70-type factors. The amino acid sequence at the N-terminus has characteristics of a chloroplast transit peptide. An in vitro synthesized polypeptide containing this region was shown to be imported into the chloroplast and processed. The recombinant factor lacking the N-terminal extension was expressed in Escherichia coli and purified. It confers the ability on E.coli core RNA polymerase to bind specifically to a DNA fragment that contains the chloroplast psbA promoter. Transcription of the psbA template by E.coli core enzyme in the presence of recombinant SIG1 results in enhanced formation of transcripts of the size expected for correct initiation at the in vivo start site. Together, these data suggest that the mature protein acts as one of the chloroplast transcription factors in mustard. RNA gel blot hybridization reveals a transcript at approximately 1.8 kb, which is more abundant in light-grown than in dark-grown mustard seedlings. PMID:9592164

Kestermann, M; Neukirchen, S; Kloppstech, K; Link, G

1998-01-01

288

Rapid discrimination of geographical origin and evaluation of antioxidant activity of Salvia miltiorrhiza var. alba by Fourier transform near infrared spectroscopy  

NASA Astrophysics Data System (ADS)

Radix Salvia miltiorrhiza Bge. var. alba C.Y. Wu and H.W. Li and Radix S. miltrorrhiza belong to the same genus. S. miltiorrhiza var. alba has a unique effectiveness for thromboangiitis besides therapeutical efficay of S. miltrorrhiza. It exhibits antioxidant activity (AA), while its quality and efficacy also vary with geographic locations. Therefore, a rapid and nondestructive method based on Fourier transform near infrared spectroscopy (FT-NIRS) was developed for discrimination of geographical origin and evaluation of AA of S. miltiorrhiza var. alba. The discrimination of geographical origin was achieved by using discriminant analysis and the accuracy was 100%. Partial least squares (PLS) regression was employed to establish the model for evaluation of AA by NIRS. The spectral regions were selected by interval PLS (i-PLS) method. Different pre-treated methods were compared for the spectral pre-processing. The final optimal results of PLS model showed that correlation coefficients in the calibration set (Rc) and the prediction set (Rp), root mean square error of prediction (RMSEP) and residual prediction deviation (RPD) were 0.974, 0.950, 0.163 mg mL-1 and 2.66, respectively. The results demonstrated that NIRs combined with chemometric methods could be a rapid and nondestructive tool to discriminate geographical origin and evaluate AA of S. miltiorrhiza var. alba. The developed NIRS method might have a potential application to high-throughput screening of a great number of raw S. miltiorrhiza var. alba samples for AA.

Duan, Xiaoju; Zhang, Danlu; Nie, Lei; Zang, Hengchang

2014-03-01

289

Helminth communities of two species of piscivorous birds, Ardea alba (Linnaeus) and Nyctanassa violacea (Gmelin) (Ciconiiformes: Ardeidae), in two coastal lagoons from Guerrero state, Mexico.  

PubMed

The composition and species richness in helminth communities of two species of heron, Ardea alba and Nyctanassa violacea, in two coastal lagoons from Guerrero, Mexico were examined. Nineteen species of helminth (7,804 individuals) were identified in 43 adult birds: 15 digeneans, 1 acanthocephalan, 1 cestode, and 2 nematodes. Eight species co-occurred in herons of both species and lagoons. The prevalence values of seven species and the mean abundance of five species varied significantly between species of birds and between lagoons. The heterophyid, Ascocotyle (Phagicola) longa, was the helminth numerically dominant in the helminth community of A. alba in both lagoons, while the cestode, Parvitaenia cochlearii, dominated the community of N. violacea. At the component community level, species richness varied significantly: 10 species in A. alba from Coyuca to 16 in N. violacea (Tres Palos). All of the birds examined were infected with helminth parasites: three to seven species per host in A. alba from Coyuca, and two to eight species in A. alba and N. violacea from Tres Palos. The results indicate that even though species composition was similar between both species of heron, the structure of their communities was not the same. Differences in the feeding behavior of the birds (day/night habits), as well as local differences in the abundance of species of fish, and infection levels of helminths in each lagoon are suggested as being responsible for the variations registered in the structure of the helminth communities. PMID:22314783

Violante-Gonzlez, Juan; Monks, Scott; Gil-Guerrero, Salvador; Rojas-Herrera, Agustn A; Flores-Rodrguez, Pedro

2012-07-01

290

EVALUACIN DE LA ACTIVIDAD ANTI-CANDIDA Y ANTI-ASPERGILLUS DE ACEITES ESENCIALES DE LIPPIA ALBA (MILLER) N.E BROWN QUIMIOTIPO CARVONA- LIMONENO Y SU ASOCIACIN CON SUS COMPONENTES MAYORITARIOS  

Microsoft Academic Search

The plants are source of active secondary metabolites and the essential oils of Lippia alba species have been showed antifungal activity in vitro recently. In this study, antifungal activity of five essential oils of Lippia alba species chemotype carvone- limonene from different parts of the country were evaluated by determining the minimum inhibitory concentration (MIC) following standard microdilution method protocols

JEHIDYS MONTIEL; ANA CECILIA; MESA ARANGO; CAMILO DURN; JUAN GABRIEL BUENO

2007-01-01

291

Antioxidant capacity and HPLC-DAD-MS profiling of Chilean peumo (Cryptocarya alba) fruits and comparison with German peumo (Crataegus monogyna) from southern Chile.  

PubMed

Liquid chromatography (LC) coupled with UV detection and electrospray ionization (ESI) tandem mass spectrometry (MS/MS) was used for the generation of chemical fingerprints and the identification of phenolic compounds in peumo fruits and aerial parts from southern Chile. Thirty three compounds (19 of these detected in C. alba and 23 in C. monogyna) were identified, mainly flavonoid glycosides, phenolic acids, anthocyanins and flavonoid aglycons. Total phenolic content and total flavonoid content was measured for both species, and were higher in the extracts from C. monogyna fruits and aerial parts than extracts from C. alba. The fruits of Cryptocarya alba (Chilean peumo) presented high antioxidant capacity (9.12 0.01 mg/mL in the DPPH assay), but was three times lower to that of Crataegus monogyna (German peumo) (3.61 0.01 mg/mL in the DPPH assay). PMID:23385342

Simirgiotis, Mario J

2013-01-01

292

Fractional CO2 laser as an effective modality in treatment of striae alba in skin types III and IV  

PubMed Central

Context: Rapid stretching of the skin over the weak connective tissue leads to development of striae distensae. Recently, researchers have shown special interest towards use of fractional photothermolysis in treatment of striae and several studies have shown its usefulness. Our aim was to assess the efficacy of Fractional CO2 laser in treatment of striae alba. Materials and Methods: A randomized clinical trial was carried out in female patients with striae alba. Ninety two striae were randomly selected and divided into two groups. Five sessions of laser resurfacing, were performed in Group 1, every 24 weeks. Group 2 was treated with 10% glycolic acid+0.05% tretinoin cream nightly during the study. Photographs were taken from the striae before and two weeks after the end of treatment. Mean surface area of striae compared between two groups. Patients views regarding the degree of improvement were assessed via visual analogue scale (VAS). Results: Forty six striae in Group 1 underwent laser resurfacing and 46 matched striae in Group 2, were treated with topical cream. Mean difference of striae surface area, was significantly decreased after treatment in Group 1 (-37.115.6 cm2) in comparison with Group 2(-7.99 cm2) (P value >0.001). Mean VAS was significantly higher in Group 1 (3.050.74) compared to Group 2 (0.630.66) (P value >0.001). Conclusions: Fractional photothermolysis via Fractional CO2 laser seems to be an effective method for treatment of striae alba. PMID:23825991

Naein, Farahnaz Fatemi; Soghrati, Mehrnaz

2012-01-01

293

The antimicrobial efficacy of Lippia alba essential oil and its interaction with food ingredients  

PubMed Central

The objective of this study was to evaluate the antimicrobial potential of Lippia alba essential oil (EOLa) and to investigate the effect of food ingredients on its efficacy. The antimicrobial potential of the oil was determined by the presence or absence of inhibition zones, minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) against Escherichia coli, Listeria innocua, Listeria monocytogenes, Pseudomonas aeruginosa, Salmonella choleraesuis and Staphylococcus aureus. The effect of food ingredients and the pH on the antimicrobial efficacy of oil was assessed by monitoring the maximum growth rate of Listeria monocytogenes in model media. The model media included potato starch (0, 1, 5 or 10%), beef extract (1, 5, 3, 6 or 12%), sunflower oil (0, 5 or 10%) and TSB broth at pH levels of 4, 5, 6 or 7. The EOLa showed efficacy at all concentrations (50%, 25%, 6.25%, 3%, 1.5%, 0.8%, 0.4% and 0.2%) evaluated, against all bacterial species, Gram-positive and Gram-negative. The antimicrobial efficacy of EO was found to be a function of ingredient manipulation. Proteins and lipids had a negative impact on the oil effectiveness, indicating the protective action of both on the microbial specie tested. On the contrary, at the highest concentration of starch (10%), the lower rate growth of L. monocytogenes was detected, therefore indicating a positive effect of carbohydrates on the oil effectivenes. Regarding the pH, the studies showed that the rate of microbial growth increased with increasing pH. It was concluded that the use of EOLa is more effective control pathogenic and spoilage bacteria when applied to starchy foods under an acidic pH. PMID:25242961

Machado, Terezinha Feitosa; Nogueira, Ndia Accioly P.; de Cssia Alves Pereira, Rita; de Sousa, Cvita Teixeira; Batista, Valria Chaves Vasconcelos

2014-01-01

294

Use of decision risk analysis in selecting field development options. A case study: Alba Field Phase 2  

SciTech Connect

This paper describes how a Decision Risk Analysis approach has been used to develop an optimum solution to complete the Alba Field development. In particular this covers the process adopted and the utilization of a series of tools which give a formal structure to the work conducted. The process described has been applied to derive a Development Plan for the concluding phase of a two phase project. Examples are given of how the methodology allows resources to be allocated to different work areas. Priorities are defined by the impact on project value of reducing uncertainty in a given variable.

Ahmed, S.; Murphy, S.J.

1996-12-31

295

The Origin of Clonal Diversity and Structure of Populus alba in Sardinia: Evidence from Nuclear and Plastid Microsatellite Markers  

PubMed Central

Background and Aims Populus alba is a thermophilic forest tree present in the Mediterranean basin. Its habitat is highly fragmented and its distribution range has been subject to long-term human interference, resulting in debate surrounding whether certain populations are native or exotic in origin. In particular, populations from the islands of Corsica and Sardinia are of uncertain origin. While populations of P. alba mainly reproduce sexually, clonal reproduction is also common. The aims of this study were to locate and molecularly characterize the poorly studied island populations of P. alba and compare these with samples from various spatial scales, in order to provide information on the genetic structure and phylogeography of this species. This information will provide evidence on whether the species is native to Sardinia, which is important for the development of conservation strategies. Methods DNA extracts were obtained from the following P. alba trees: 159 from Sardinia, 47 from Ticino regional park (northern Italy), 15 acquired from an Italian Germoplasm Bank (IRC; Italian Reference Collection) and 28 from the Mediterranean basin (MB). Genetic polymorphisms were revealed at nuclear and chloroplast DNA (cpDNA) microsatellite loci, both at the island scale (Sardinia) and at broader scales, for comparative assessment of the genetic and genotypic diversity and phylogeography. Key Results Based on nuclear microsatellite loci, Sardinian white poplar consists of a small number of genets (26), each of which is represented by several ramets. Despite the uniqueness of the Sardinian haplotypes and the very low value of genetic diversity at the cpDNA level (vK = 015), the HT (060) and the AR (361) values, estimated at the nuclear level for Sardinia, were comparable with those of the other populations and collections. Conclusions The uniqueness of the cpDNA haplotypes, the prevalence of clonality and the restricted number of genets recorded suggest that Sardinian white poplar could be a floristic relict of the native flora of the island, which has spread through available habitats on the island mainly by means of vegetative propagation and human activities. PMID:18845663

Brundu, Giuseppe; Lupi, Renato; Zapelli, Ilaria; Fossati, Tiziana; Patrignani, Giuseppe; Camarda, Ignazio; Sala, Francesco; Castiglione, Stefano

2008-01-01

296

Responses to nonaeration and\\/or salinity stress in hydroponically cultured Populus nigra and Populus alba cuttings  

Microsoft Academic Search

Growth, photosynthesis, and Na+, K+, Ca2+, and Mg2+ distributions were examined in two-year-old hydroponically cultured Populus nigra and Populus alba cuttings exposed to salt stress (0, 50, or 100mM NaCl) for four or sixweeks and to nonaeration stress for one or threeweeks,\\u000a followed by a three-week aeration period in 2\\/5 Hoagland solution. Salt stress with 100mM NaCl totally inhibited height

HuiPing Mao; Yoshikazu Okada; Shizuka Michimata; Wen Wang; Fumiko Iwanaga; Norikazu Yamanaka; Fukuju Yamamoto

2010-01-01

297

Preparation of Three Flavonoids from the Bark of Salix alba by High?Speed Countercurrent Chromatographic Separation  

Microsoft Academic Search

The main flavonoids from the bark extract of Salix alba (Salicaceae) were separated on preparative scale using high?speed countercurrent chromatography (HSCCC). In each separation, 1.0g crude extract was applied to yield pure eriodictyol (120mg), 5,7?dihydroxychromen?4?one (29.5mg), and naringenin (50mg), respectively, while watermethanolethyl acetaten?hexane (3:2:2:2, v\\/v) was used for a two?phase solvent system. The chemical structures of three flavonoids were elucidated

Qizhen Du; Gerold Jerz; Peter Winterhalter

2005-01-01

298

PREFERENCIA DE RBOLES FORRAJEROS POR CABRAS EN LA ZONA BAJA DE LOS ANDES VENEZOLANOS. Goats Preference of Fodder Tree in the Venezuelan Andes Low Zone  

Microsoft Academic Search

In order to know the preference of twelve fodder species (Chlo- rophora tinctoria, Morus alba, Pithecellobium pedicellare, Gliri- cidia sepium, Guazuma ulmifolia, Cordia alba, Trichantera gi- gantea, Tithonia diversifolia, Leucaena leucocephala, Moringa oleifera, Azadirachta indica and Samanea saman) a cafeteria trial was carried out in goats at Trujillo State, Venezuela. An ex- perimental square latin design with evaluation period of

Danny Eugenio Garca; Mara Gabriela Medina; Tyrone Clavero; Johny Humbra; Alfredo Baldizn; Carlos Domnguez

2008-01-01

299

LA BIOTICA COMO QUEHACER FILOSFICO  

PubMed Central

El artculo examina el estatuto epistemolgico de la biotica como disciplina acadmica. El autor sostiene que el estatuto epistemolgico de un discurso lo determina la pregunta fundamental que se plantea y la respuesta que se busca, focos integradores del discurso. En el caso de la biotica, la pregunta fundamental es de ndole moral. La biotica es pues una disciplina tica que tiene su hogar epistemolgico en la filosofa. El autor tambin defiende el concepto de ticas aplicadas. Sugiere finalmente que el mtodo de la biotica, sobre todo la que se hace desde nuestras latitudes, debera adoptar el crculo hermenutico como metodologa para su filosofar. PMID:20463860

Ferrer, Jorge Jos

2009-01-01

300

HMG-CoA reductase inhibitory activity and phytocomponent investigation of Basella alba leaf extract as a treatment for hypercholesterolemia.  

PubMed

The enzyme 3-hydroxy-3-methyl-glutaryl-coenzyme A (HMG-CoA) reductase is the key enzyme of the mevalonate pathway that produces cholesterol. Inhibition of HMG-CoA reductase reduces cholesterol biosynthesis in the liver. Synthetic drugs, statins, are commonly used for the treatment of hypercholesterolemia. Due to the side effects of statins, natural HMG-CoA reductase inhibitors of plant origin are needed. In this study, 25 medicinal plant methanol extracts were screened for anti-HMG-CoA reductase activity. Basella alba leaf extract showed the highest inhibitory effect at about 74%. Thus, B. alba was examined in order to investigate its phytochemical components. Gas chromatography with tandem mass spectrometry and reversed phase high-performance liquid chromatography analysis revealed the presence of phenol 2,6-bis(1,1-dimethylethyl), 1-heptatriacotanol, oleic acid, eicosyl ester, naringin, apigenin, luteolin, ascorbic acid, and ?-tocopherol, which have been reported to possess antihypercholesterolemic effects. Further investigation of in vivo models should be performed in order to confirm its potential as an alternative treatment for hypercholesterolemia and related cardiovascular diseases. PMID:25609924

Baskaran, Gunasekaran; Salvamani, Shamala; Ahmad, Siti Aqlima; Shaharuddin, Noor Azmi; Pattiram, Parveen Devi; Shukor, Mohd Yunus

2015-01-01

301

Chemical composition and biological activities of the essential oil from Artemisia herba-alba growing wild in Tunisia.  

PubMed

Aromatic plants can interfere in the Mediterranean ecosystem, mainly by the introduction in the environment of volatile compounds. For this reason, we studied the chemical composition and the possible phytotoxic and antimicrobial activities of the essential oil extracted from leaves of Tunisian Artemisia herba-alba Asso. The chemical composition of the essential oil, obtained by hydrodistillation, was analyzed by GC and GC-MS. In all, 24 compounds were identified. The main components were camphor (39.1%), chrysanthenone (15.0%) and cis-thujone (7.8%). The essential oil was evaluated for its in vitro phytotoxic activity against germination and initial radical growth of Raphanus sativus L., Lepidium sativum L., Sinapis arvensis L., Triticum durum L. and Phalaris canariensis L. seeds. The radicle elongation of the five seeds was affected to different extents by the oil, while germination was not affected. The oil, when tested against eight selected bacterial strains, showed low antimicrobial activity. The chemical composition of the oil of A. herba-alba can help in the chemosystematics of this complex genus. However, the recorded biological activities seem to be neither ecologically nor medicinally significant. PMID:23678823

Amri, Ismail; De Martino, Laura; Marandino, Aurelio; Lamia, Hamrouni; Mohsen, Hanana; Scandolera, Elia; De Feo, Vincenzo; Mancini, Emilia

2013-03-01

302

A regulatory approach on low temperature induced enzymatic and anti oxidative status in leaf of Pui vegetable (Basella alba).  

PubMed

Basella alba is a soft green vegetable, survives in adverse environmental circumstances, for example, very cold temperature although the mechanism and the temperature sensitivity in this species are not clarified. Pot experiment for cultivation of B. alba was carried out to examine the effects of low temperature on the synthesis of two enzymes, polyphenol oxidase (PPO) and peroxidase (POD) in leaf of this plant. They were exposed to 8C for 24h, 48h and 72h periods and the respective controls were kept in ambient room temperature for the above mentioned time. Low temperature causes the higher activity of PPO and the threshold level was found after 48h period when compared to the respective controls. The activity was higher at 10mM catechol, substrate for this enzyme, than 100mM and 200mM concentration, however, the three doses yielded the gradual increase in activity. Similar stimulatory effects on peroxidase (POD) activity in leaf were observed whenever the plants were exposed to cold for 24h, 48h and 72h periods and maximal after 48h period. Our findings demonstrate that the higher activity of these enzymes in leaf might be an index for the regulatory mechanism of the survival of these species in such adverse environment. PMID:25183947

Shahidul Haque, Md; Monirul Islam, Md; Abdur Rakib, Md; Asraful Haque, Md

2014-09-01

303

HMG-CoA reductase inhibitory activity and phytocomponent investigation of Basella alba leaf extract as a treatment for hypercholesterolemia  

PubMed Central

The enzyme 3-hydroxy-3-methyl-glutaryl-coenzyme A (HMG-CoA) reductase is the key enzyme of the mevalonate pathway that produces cholesterol. Inhibition of HMG-CoA reductase reduces cholesterol biosynthesis in the liver. Synthetic drugs, statins, are commonly used for the treatment of hypercholesterolemia. Due to the side effects of statins, natural HMG-CoA reductase inhibitors of plant origin are needed. In this study, 25 medicinal plant methanol extracts were screened for anti-HMG-CoA reductase activity. Basella alba leaf extract showed the highest inhibitory effect at about 74%. Thus, B. alba was examined in order to investigate its phytochemical components. Gas chromatography with tandem mass spectrometry and reversed phase high-performance liquid chromatography analysis revealed the presence of phenol 2,6-bis(1,1-dimethylethyl), 1-heptatriacotanol, oleic acid, eicosyl ester, naringin, apigenin, luteolin, ascorbic acid, and ?-tocopherol, which have been reported to possess antihypercholesterolemic effects. Further investigation of in vivo models should be performed in order to confirm its potential as an alternative treatment for hypercholesterolemia and related cardiovascular diseases. PMID:25609924

Baskaran, Gunasekaran; Salvamani, Shamala; Ahmad, Siti Aqlima; Shaharuddin, Noor Azmi; Pattiram, Parveen Devi; Shukor, Mohd Yunus

2015-01-01

304

Investigation of the Chemical Changes from Crude and Processed Paeoniae Radix Alba-Atractylodis Macrocephalae Rhizoma Herbal Pair Extracts by Using Q Exactive High-Performance Benchtop Quadrupole-Orbitrap LC-MS/MS  

PubMed Central

The Paeoniae Radix Alba-Atractylodis Macrocephalae Rhizoma herbal pair is mainly used for regulating the functions of liver and spleen, benefiting qi, and nourishing blood. However, the bioactive compounds for the pharmacological activities of the crude and processed Paeoniae Radix Alba-Atractylodis Macrocephalae Rhizoma herbal pair extracts are still unclear to date. In the present study, Q Exactive high-performance benchtop quadrupole-Orbitrap LC-MS/MS was applied to identify the complicated components from crude and processed Paeoniae Radix Alba, crude and processed Atractylodis Macrocephalae Rhizoma, and their crude and processed herbal pair extracts. 123 and 101 compounds were identified in crude and processed Paeoniae Radix Alba samples, respectively. Meanwhile, 32 and 26 compounds were identified in crude and processed Atractylodis Macrocephalae Rhizoma samples, respectively. In the crude and processed Paeoniae Radix Alba-Atractylodis Macrocephalae Rhizoma herbal pair extracts, co-decoction could significantly change the chemical composition of Paeoniae Radix Alba and Atractylodis Macrocephalae Rhizoma in solution. The developed method may provide a scientific foundation for deeply elucidating the processing and compatibility mechanism of Paeoniae Radix Alba and Atractylodis Macrocephalae Rhizoma. PMID:24876867

Cao, Gang; Li, Qinglin; Cai, Hao; Tu, Sicong; Cai, Baochang

2014-01-01

305

Distribution of heavy metals and their age-related changes in the eastern great white egret, Egretta alba modesta , in Korea  

Microsoft Academic Search

Organ and tissue distribution of eight metals (Fe, Mn, Zn, Cu, Pb, Ni, Cd, Hg) and their age-related changes were investigated in the chick and adult eastern great white egret,Egretta alba modesta, collected in Korea. High concentrations of the metals were found in the liver, kidney, feathers, bone, and skin; low values were found in the muscle and brain. A

Katsuhisa Honda; Byung Yoon Min; Ryo Tatsukawa

1986-01-01

306

DISTRIBUTION OF OROBAMCHE ALBA STEPHAN EX WILLD - POTENTIAL HOST OF PHYTOPHAGOUS ANIMALS AND PATHOGENS ATTACKING THE PEST OROBANCHE RAMOSA L. IN SLOVAKIA  

Microsoft Academic Search

Summary During 2002 and 2003, the survey of distribution of wild broomrapes (Orobanche sp.), as potential hosts of phytophagous animals and pathogens, was done in Slovakia. 50 localities were checked and broomrapes occurred on 30 of them. One of the most abundant broomrape species was Orobanche alba Stephan ex Willd., which infested plants from the genus Thymus L. and was

Peter TTH; A. Hlinku

307

Leptolide, a New Furanocembranolide Diterpene from Leptogorgia alba Marcelino Gutierrez, Todd L. Capson, Hector M. Guzman, Jose Gonzalez, Eduardo Ortega-Barria,  

E-print Network

material was fractionated using silica gel vacuum liquid chromatography (VLC) followed by silica gel flash- guided fractionation. L. alba was subjected to liquid-liquid partition, and the active CH2Cl2-soluble chromatography, affording the new compound 1 and two known compounds identified as pukalide aldehyde (2

Bermingham, Eldredge

308

Ecophysiological Competence of Populus alba L., Fraxinus angustifolia Vahl., and Crataegus monogyna Jacq. Used in Plantations for the Recovery of Riparian Vegetation  

Microsoft Academic Search

In many semi-arid environments of Mediterranean ecosystems, white poplar ( Populus alba L.) is the dominant riparian tree and has been used to recover degraded areas, together with other native species, such as ash ( Fraxinus angustifolia Vahl.) and hawthorn ( Crataegus monogyna Jacq.). We addressed three main objectives: (1) to gain an improved understanding of some specific relationships between

Jose A. Manzanera; Maria F. Martnez-Chacn

2007-01-01

309

Enhancement of the antibiotic activity of erythromycin by volatile compounds of Lippia alba (Mill.) N.E. Brown against Staphylococcus aureus  

PubMed Central

Background: Lippia alba (Mill.) N.E. Brown, popularly known as erva-cidreira, is commonly found in northeastern Brazil. The leaves tea is used to treat digestive disturbances, nausea, cough, and bronchitis. Objective: This work reports the chemical composition and erythromycin-modifying activity by gaseous contact against Staphylococcus aureus. Materials and Methods: The leaves of L. alba were subjected to hydrodistillation, and the essential oil extracted was examined with respect to the chemical composition, by gas chromatography-mass spectrometry (GC-MS), and the essential oil extracted was evaluated for antibacterial and antibiotic-modifying activity by gaseous contact. Results: The overall yield of essential oil obtained by hydrodistillation was 0.52%. The GC-MS analysis has led to the identification of the main components: geranial (31.4%) and neral (29.5%). It was verified that the essential oil interfered with erythromycin antibiotic activity against S. aureus ATCC 25923 was enhanced (221.4%) in the presence of 12% essential oil. The 3% essential oil increased the effect against S. aureus ATCC 25923 (41.6%) and S. aureus ATCC 6538 (58.3%). Conclusion: The essential oil of L. alba influences the activity of erythromycin and may be used as an adjuvant in antibiotic therapy against respiratory tract bacterial pathogens. Conclusion: The essential oil of L. alba influences the activity of erythromycin and may be used as an adjuvant in antibiotic therapy against respiratory tract bacterial pathogens. PMID:22262937

Veras, Helenicy N. H.; Campos, Adriana R.; Rodrigues, Fabola F. G.; Botelho, Marco A.; Coutinho, Henrique D. M.; Menezes, Irwin R. A.; da Costa, Jos Galberto M.

2011-01-01

310

The effect of air pollution and other environmental stressors on leaf fluctuating asymmetry and specific leaf area of Salix alba L  

Microsoft Academic Search

We aimed at evaluating the effect of low-level air pollution on leaf area fluctuating asymmetry (FAA) and specific leaf area (SLA) of Salix alba L., taking into account other environmental factors. Cuttings were grown in standardized conditions in the near vicinity of air quality measuring stations in Belgium. Variability of SLA and FAA between measuring stations explained 83% and 7.26%,

Tatiana Wuytack; Karen Wuyts; Stefan Van Dongen; Lander Baeten; Fatemeh Kardel; Kris Verheyen; Roeland Samson

2011-01-01

311

Mechanical Root-Disruption Practices and Their Effect on Circling Roots of Pot-Bound Tilia Cordata Mill. and Salix Alba L. 'Niobe  

Microsoft Academic Search

Pot-bound Tilia cordata Mill. and Salix alba L. 'Niobe' were planted in a Waukegan silt loam soil in June 2003 at the University of Minnesota TRE nursery in St. Paul, Minnesota. Before planting, the root balls of the container-grown plants were mechanically disrupted using one of three standard root pruning practices recommended to correct circling roots: scoring (slicing), butterfly pruning,

Patrick J. Weicherding; Chad P. Giblin; Jeffrey H. Gillman; David L. Hanson; Gary R. Johnson

2007-01-01

312

Antiestrogenic and antigenotoxic activity of bee pollen from Cystus incanus and Salix alba as evaluated by the yeast estrogen screen and the micronucleus assay in human lymphocytes  

Microsoft Academic Search

The estrogenic\\/antiestrogenic activity and the genotoxicity\\/antigenotoxicity of bee pollen from Salix alba L. and Cystus incanus L. and its derivative extracts in yeast and human cells was investigated. All samples showed a marked inhibitory effect on the activity of the natural estrogen 17 ?-estradiol (higher than 90% for extracts 2) and failed to cause estrogenic activity and chromosome damage. At

Barbara Pinto; Francesca Caciagli; Elisabetta Riccio; Daniela Reali; Ana ari?; Tihomir Balog; Saa Liki?; Roberto Scarpato

2010-01-01

313

RAPD of controlled crosses and clones from the field suggests that hybrids are rare in the Salix albaSalix fragilis complex  

Microsoft Academic Search

The polyploid Salix albaSalix fragilis hybrid complex is rather difficult to study when using only morphological characters. Most of the features have a low diagnostic value for unambiguously identifying the hybrids, introgression patterns and population structures, though morphological traits have proved to be useful in making a hybrid index. Morphology and molecular variation from RAPDs were investigated in several case

Ludwig Triest; Bart de Greef; Ruth de Bondt; Jos van Slycken

2000-01-01

314

Concerning the question of the chemical nature of the volatile substances in the leaves of some plants. [Salix alba; Populus simonii; Populus sosnowskyi  

Microsoft Academic Search

An analysis of the leaves of willow (Salix alba) and two species of poplar (Populus simonii and Populus sosnowskyi) was performed to determine the gases that are evolved from them. The experiments were carried out during the autumal period of growth using mass-spectrometric methods. Results revealed the presence of methane, ethane, propane, butane, and other heavier substances in the gases

G. A. Sanadze; G. M. Dolidze

1960-01-01

315

A method for the detection of non-random associations among flocking birds and its application to sanderlings Calidris alba wintering in N.E. England  

Microsoft Academic Search

Indices of association are frequently used in studies of social behaviour. Observed association indices may be compared with those obtained from computer randomizations of the data in order to test whether any two individuals in a population tend to occur together more than would be expected by chance. Data for individually-identifiable colour-ringed sanderlings Calidris alba are presented to illustrate the

Gilbert Roberts; Peter R. Evans

1993-01-01

316

The parallel expression of metal tolerance in pollen and sporophytes of Silene dioica (L.) Clairv., S. alba (mill.) krause and Mimulus guttatus DC  

Microsoft Academic Search

The purpose of this paper was to determine if heavy metal tolerance was expressed in pollen and if its expression was correlated with the tolerance of the pollen source. Clones of Silene dioica, tolerant to zinc, closely related but nontolerant S. alba and clones of Mimulus guttatus tolerant and sensitive to copper were grown in the greenhouse in either standard

K. B. Searcy; D. L. Mulcahy

1985-01-01

317

Linkage mapping in tetraploid willows: segregation of molecular markers and estimation of linkage phases support an allotetraploid structure for Salix alba x Salix fragilis interspecific hybrids.  

PubMed

Salix alba-Salix fragilis complex includes closely related dioecious polyploid species, which are obligate outcrossers. Natural populations of these willows and their hybrids are represented by a mixture of highly heterozygous genotypes sharing a common gene pool. Since nothing is known about their genomic constitution, tetraploidy (2n=4x=76) in willow species makes basic and applied genetic studies difficult. We have used a two-way pseudotestcross strategy and single-dose markers (SDMs) to construct the first linkage maps for both pistillate and staminate willows. A total of 242 amplified fragment length polymorphisms (AFLPs) and 50 selective amplifications of microsatellite polymorphic loci (SAMPL) markers, which showed 1:1 segregation in the F(1) mapping populations, were used in linkage analysis. In S. alba, 73 maternal and 48 paternal SDMs were mapped to 19 and 16 linkage groups covering 708 and 339 cM, respectively. In S. fragilis, 13 maternal and 33 paternal SDMs were mapped in six and 14 linkage groups covering 98 and 321 cM, respectively. For most cosegregation groups, a comparable number of markers linked in coupling and repulsion was identified. This finding suggests that most of chromosomes pair preferentially as occurs in allotetraploid species exhibiting disomic inheritance. The detection of 10 pairs of marker alleles from single parents showing codominant inheritance strengthens this hypothesis. The fact that, of the 1122 marker loci identified in the two male and female parents, the vast majority (77.5%) were polymorphic and as few as 22.5% were shared between parental species highlight that S. alba and S. fragilis genotypes are differentiated. The highly difference between S. alba- and S. fragilis-specific markers found in both parental combinations (on average, 65.3 vs 34.7%, respectively) supports the (phylogenetic) hypothesis that S. fragilis is derived from S. alba-like progenitors. PMID:12634824

Barcaccia, G; Meneghetti, S; Albertini, E; Triest, L; Lucchin, M

2003-02-01

318

Factors limiting regeneration of Quercus alba and Cornus florida in formerly cultivated coastal plain sites, South Carolina.  

SciTech Connect

Riley, J.M. Jr., and R.H.Jones. 2003. Factors limiting regeneration of Quercus alba and Cornus florida in formerly cultivated coastal plain sites, South Carolina. For. Ecol., and Mgt. 177:571-586. To determine the extent that resources, conditions, and herbivoryy limit regeneration of Quercus alba L. and Cornus florida L. in formerly cultivated coastal plain uplands, we planted seedlings of the two species in two pine and one pine-hardwood forest understory and three adjacent clearcuts. Soil carbon and moisture, available nitrogen and phosphorous, and gap light index (GLI) were measured next to each seedling. Over two growing seasons, stem and leaf herbivory were estimated and survival was recorded. At the end of 2 years, all surviving stems were harvested to determine total leaf area and 2-year biomass growth. Survival to the end of the study was not significantly different between clearcuts and understories. However, clearcuts led to significantly greater biomass growth and leaf area for both Q. alba and C. florida. Soil moisture and available nutrients were also greater in the clearcuts. Using separate multiple linear (growth) or logistic (survival) regressions for each combination of three sites, two cutting treatments and two species, we found that soil moisture significantly affected survival in 12.5% and biomass growth in 8.3% of the regressions. Light availability significantly impacted biomass growth in 16.7% of the regressions. Stem and leaf herbivory had very little impact on survival (8.3%), but when combined, these two factors significantly impacted leaf area or biomass growth in 33.3% of the regressions. Seedling responses were highly variable, and no regression model accounted for more that 70.0% of this variation. In our study, stand-scalevariation in seedling responses (especially the difference between clearcut and understory) was much greater than within-stand variation. Of the within stand factors measured, herbivory was clearly the most important. To establish these species in mesic upland coastal plain sites, we recommend planting immediately after clearcutting.

Riley, Joseph, M., Jr.; Jones, Robert, H.

2003-01-01

319

Two-dimensional correlation infrared spectroscopy applied to analyzing and identifying the Radix paeoniae Alba medicinal materials  

NASA Astrophysics Data System (ADS)

In this paper, we employed Fourier transformation infrared spectroscopy (FTIR) and two-dimensional correlation (2D) technique to analyzing and comparing the Radix paeoniae Alba medicinal materials that provided by Good Agricultural Practice (GAP) base, the market, and China pharmaceutical biological analysis institute whose medicinal material acts as a control group. We compared the infrared spectra of the three samples, and found that they are very similar to each other, the only difference is that the control group has a strong absorbing peak at 1634 cm -1, and the sample from GAP base and suppliers have the same absorbing peak shape at 1627 cm -1 and 1625 cm -1, respectively. The comparison of three second derivative spectra indicating that the characteristic peak of the R. paeoniae Alba that from the base and the market have a one-to-one relationship with that of the control group, but at the range of 900-1200 cm -1 they have different absorbing peaks. More comparisons of 2D IR spectra were done, and the result shows that at the range of 1060-1320 cm -1, the samples from GAP has a high similarity with the control group, but the samples from the suppliers have a distinct difference with the control group. Combining the infrared spectra, second derivative spectra and 2D IR spectra, the samples of the GAP base has a strong relativity with the control group, and the productions from the suppliers have a weak relativity. Comparing with the single index quantitative analysis served by classical Liquid Chromatograph, this method is simple, fast and accurate.

Liu, Yan; Jun-quan, Wang; Shun-hang, Liu; Sun, Su-Qin

2008-07-01

320

Como Lo Hago Yo: Myelomeningocele  

PubMed Central

Fortificacin con dico flico es efectiva, pero an falta conciencia en los jvenes. La legalidad del aborto aumenta la importancia de la consulta prenatal. Realizo la ciruga bajo microcoscopio por razones didcticas. Irrigacin continua para reducir la temperatura del tejido. Trato a la plaqueta como tejido viable. No suturo la plaqueta. No cierro msculo. ATB por una semana despus de ciruga. Hidrocefalia: Vlvula en todos los casos de ventriculomegalia. Mdula anclada: Desanclar una sola vez. Chiari II: Revisar la vlvula. Incluir en el seguimiento rendimiento escolar, puede indicar obstruccin de la vlvula o mdula anclada. PMID:24791217

Lazareff, Jorge

2014-01-01

321

Late Glacial to Holocene environmental variabilities: A new multi-proxy paleolimnological study of sedimentary sequences from Como (northern Italy)  

NASA Astrophysics Data System (ADS)

Lake Como (northern Italy) is the deepest Italian lake, reaching a depth of about 425 m. The lambda-shaped lake expands about 45 km in NE-SW direction. Southwards of the hydrologically closed western branch, two sediment cores of 70 m (S1) and 65 m length (S2) were taken in the year 2005 close to the cathedral of Como (Piazza Verdi). The drilling sites are located in the middle of the Southern Alps, some 300 m from the present-day lakeshore. The cores provide the first detailed Late Glacial to Holocene multi-proxy record for the Lake Como basin. Our research is aimed at investigating the environmental and geological evolution of the Insubria Region. The multi-proxy study of the stratigraphic sequences contain geophysical, geotechnical, sedimentological, paleobotanical, and radiocarbon analyses. They have been performed for core S1 and are still in progress on core S2. With this data the working group focuses on two main issues. The first topic is the reconstruction of the natural and anthropogenic processes controlling the ground subsidence in the Como urban area (e.g., Comerci et al., 2007) and another aim is to reconstruct vegetation and land-use dynamics. In particular, 150 samples of vegetal macroremains have been collected in the palustrine deposits along S1 core, down to 31,00 m. Below this depth (dated 14C 12,496 55 yr BP - 15,050 - 14,250 cal yr BP), the amount of plant macroremains in the sediment drops dramatically. The taxonomic determination was carried out on more than 800 macroremains. They are represented by fragments of wood, leaves, needles, seeds, fruits, mosses and tiny charcoals (Motella, 2009, unpublished PhD Thesis). Picea/Larix, Pinus sp., Juniperus with Betula, found in the deeper levels (30.80 - 30.00 m), are the first arboreal taxa that colonized the shores of Lake Como, and show that the reforestation began in this area about 16,000 years ago. During the early Holocene (25.10 m) Abies alba expanded and further upwards the sequence mixed deciduous forests became important. Preliminary results of palynological analyses for a section of the core S2 (35.04 - 18.12 m), show Late Glacial sediments in the depth of 35.04 - 31.16 m, due to vegetation changes related to natural climatic variability, with an alternation of communities typical of cold (Poaceae, Artemisia, Juniperus, Pinus and Betula) and temperate climates (e.g. Quercus). Later, during the Holocene, forests composed by mostly deciduous broadleaves and Abies alba expanded. During the mid and late Holocene human impact increased and modified vegetation. This is shown by the increase of herbs and heliofilous shrubs (26.51 m), typical of deforested spaces for fields and pastures. Human exploitation of wood is represented for example by the dramatic decline of Abies alba (24.97 m). Finally, the increase of Cerealia (19.39 m) is clearly related to intensified agricultural activities. The results of further paleobotanical and geophysical analyses which are in progress will be presented during the conference. Moreover, geochemical measurements (e.g., XRF) will be performed in future for core S2. Researches realized within the project of Italy-Switzerland Cooperation SITINET "Censimento, valorizzazione e messa in rete di siti geologici e archeologici" (Census, increase of value and computerization of geological and archaeological sites). Interreg IV A "Geo-Archeositi dell'Insubria" (Geo-Archaeosites of Insubria).

Hbig, N.; Martinelli, E.; Motella, S.; Michetti, A. M.; Livio, F.; Tinner, W.; Reicherter, K.; Castelletti, L.

2012-04-01

322

Antiestrogenic and antigenotoxic activity of bee pollen from Cystus incanus and Salix alba as evaluated by the yeast estrogen screen and the micronucleus assay in human lymphocytes.  

PubMed

The estrogenic/antiestrogenic activity and the genotoxicity/antigenotoxicity of bee pollen from Salix alba L. and Cystus incanus L. and its derivative extracts in yeast and human cells was investigated. All samples showed a marked inhibitory effect on the activity of the natural estrogen 17 beta-estradiol (higher than 90% for extracts 2) and failed to cause estrogenic activity and chromosome damage. At least one preparation from each species showed a marked antigenotoxic effect against the action of the anticancer drugs mytomicin C, bleomycin, and vincristine. Bee pollens from C. incanus and S. alba were found to be neither genotoxic nor estrogenic as well as effective estrogen inhibitors, and able to reduce the chromosome damage induced by the three cancer drugs used, thus supporting their use as a safe food supplement and future chemoprotective/chemopreventive agents. PMID:20598400

Pinto, Barbara; Caciagli, Francesca; Riccio, Elisabetta; Reali, Daniela; Sari?, Ana; Balog, Tihomir; Liki?, Sasa; Scarpato, Roberto

2010-09-01

323

Application of Essential Oil of Artemisia Herba Alba as Green Corrosion Inhibitor for Steel in 0.5 M H2SO4  

NASA Astrophysics Data System (ADS)

Essential oil from Artemisia herba alba (Art) was hydrodistilled and tested as corrosion inhibitor of steel in 0.5 M H2SO4 using weight loss measurements and electrochemical polarization methods. Results gathered show that this natural oil reduced the corrosion rate by the cathodic action. Its inhibition efficiency attains the maximum (74%) at 1 g/L. The inhibition efficiency of Arm oil increases with the rise of temperature. The adsorption isotherm of natural product on the steel has been determined. A. herba alba essential oil was obtained by hydrodistillation and its chemical composition oil was investigated by capillary GC and GC/MS. The major components were chrysanthenone (30.6%) and camphor (24.4%).

Ouachikh, O.; Bouyanzer, A.; Bouklah, M.; Desjobert, J.-M.; Costa, J.; Hammouti, B.; Majidi, L.

324

The mid-Holocene extinction of silver fir ( Abies alba ) in the Southern Alps: a consequence of forest fires? Palaeobotanical records and forest simulations  

Microsoft Academic Search

Pollen records suggest that Abies alba played a dominating role in both the montane and lowland forests at the border of the Southern Alps between ca. 8500 and 5700 years ago. Two major declines in fir, at about 73007000 cal b.p. and at ca. 6000 cal b.p., followed by the local extinction of the species are characteristic of the area

Lucia Wick; Adrian Mhl

2006-01-01

325

Prospective clinical and histological study to evaluate the efficacy and safety of a targeted high?intensity narrow band UVB\\/UVA1 therapy for striae alba  

Microsoft Academic Search

Objective: The purpose of this study was to determine the efficacy and safety of a targeted narrow band UVB\\/UVA1 therapy for the treatment of striae alba. Methods: Fourteen individuals with skin types II-VI were enrolled in this 22-week trial that consisted of up to 10 treatments with a combination of UVB\\/UVA1 (MultiClear2, Curelight Ltd, Israel). Participants were treated with a

Neil S. Sadick; Cynthia Magro; Alison Hoenig

2007-01-01

326

Ecophysiological Competence of Populus alba L., Fraxinus angustifolia Vahl., and Crataegus monogyna Jacq. Used in Plantations for the Recovery of Riparian Vegetation  

Microsoft Academic Search

In many semi-arid environments of Mediterranean ecosystems, white poplar (Populus alba L.) is the dominant riparian tree and has been used to recover degraded areas, together with other native species, such as\\u000a ash (Fraxinus angustifolia Vahl.) and hawthorn (Crataegus monogyna Jacq.). We addressed three main objectives: (1) to gain an improved understanding of some specific relationships between\\u000a environmental parameters and

Jose A. Manzanera; Maria F. Martnez-Chacn

2007-01-01

327

Biological effects of an aqueous extract of Salix alba on the survival of Escherichia coli AB1157 cultures submitted to the action of stannous chloride.  

PubMed

Stannous chloride (SnC12) is used in nuclear medicine as a reducing agent to obtain technetium-99m-radiopharmaceuticals. It have been reported that natural products might reduce the genotoxic and cytotoxic effects related to SnC12. This work evaluated the biological effects of an aqueous extract of Salix alba on the survival of Escherichia coli (E. coli) AB1157 (wild type) cultures submitted to the action of SnC12. E. coli AB1157 cultures (exponential growth phase) were collected by centrifugation, washed and resuspended in 0.9% NaCl. Samples were incubated in water bath shaker with: (a) SnC12 (25 microg/ml), (b) Salix alba extract(11.6 mg/ml) and (c) SnC12 (25 microg/ml) + Salix alba extract (11.6 mg/ml). Incubation with 0.9% NaCl was also carried out (control). At 60 min intervals, aliquots were withdrawn, diluted, spread onto Petri dishes with solid LB medium and incubated overnight. The colonies formed were counted and the survival fractions calculated. The extract was not able to protect the E. coli cultures against the lesive action of SnC12. The extract also did not interfere with the survival of the cultures. It suggested that the substances present in the Salix alba aqueous extract did not interfere strongly with cellular metabolism and did not alter the survival fractions of E. coli AB 1157. It is speculated that this extract cannot interfere with the generation of free radicals, the possible main agent responsible for SnC12 lesive action. PMID:19746265

Souza, Raphael S S; Almeida, Marcela C; Manoel, Cristiano V; Santos-Filho, Sebastio D; Fonseca, Adenilson S; Bernardo Filho, Mario

2009-01-01

328

Isolation and characterisation of phosphate solubilising microorganisms from the cold desert habitat of Salix alba Linn. in trans Himalayan region of Himachal Pradesh  

Microsoft Academic Search

Phosphate solubilising microorganisms (PSM) (bacteria and fungi) associated with Salix alba Linn. from Lahaul and Spiti valleys of Himachal Pradesh were isolated on Pikovskaya (PVK), modified Pikovskaya (MPVK) and\\u000a National Botanical Research Institute agar (NBRIP) media by spread plating. The viable colony count of P-solubilising bacteria\\u000a (PSB) and fungi (PSF) was higher in rhizosphere than that of non-rhizosphere. The frequency

Anshu S. Chatli; Viraj Beri; B. S. Sidhu

2008-01-01

329

Interfamilial cell fusion among leaf protoplasts of Populus alba, Betula platyphylla and Alnus firma : assessment of electric treatment and in vitro culture conditions  

Microsoft Academic Search

The optimal conditions for fusion of leaf protoplasts of Populus alba, Betula platyphylla, and Alnus firma by electric treatment were alternate current (AC) 200Vcm?1 in 2.5mM CaCl2 for a pearl chain formation and direct current (DC) pulse of 100?s at 2kV cm?1 After interfamilial cell fusion treatment, colonies were obtained using liquid media containing 2,4-D or NAA as an auxin

Yohichi Wakita; Shinso Yokota; Nobuo Yoshizawa; Toshio Katsuki; Yoshihiko Nishiyama; Toshitaka Yokoyama; Mitsue Fukui; Hamako Sasamoto

2005-01-01

330

Evaluation of MAT-vector system in white poplar ( Populus alba L.) and production of ipt marker-free transgenic plants by single-step transformation  

Microsoft Academic Search

Genetic transformation of an elite white poplar genotype (Populus alba L., cv. Villafranca) was performed with MAT vectors carrying the ipt and rol genes from Agrobacterium spp. as morphological markers. The effects associated with the use of different gene promoters and distinct invitro regeneration\\u000a protocols were evaluated. Poplar plantlets showing abnormal ipt and rol phenotypes were produced only in the

Samanta Zelasco; Valentina Ressegotti; Massimo Confalonieri; Daniela Carbonera; Paolo Calligari; Martina Bonadei; Stefano Bisoffi; Keiko Yamada; Alma Balestrazzi

2007-01-01

331

A Multiresidue Method for 20 Pesticides in Radix paeoniae Alba of Chinese Herb by Gas Chromatography with Electron-capture Detection  

Microsoft Academic Search

A rapid multiresidue method was developed for the determination of 20 pesticides in Radix paeoniae Alba of Chinese herb by ultrasonic wave extraction, silica gel column chromatography and gas chromatography (GC) with electron-capture\\u000a detection (ECD) in this study, Mean recoveries of the method ranged from 74.45 to 115.14%. The validation of the proposed\\u000a approach was verified on Isatis indigotica Fort,

Gao Qian; Hua Rimao; Tang Feng; Wu Xiangwei; Li Xuede; Cao Haiqun; Shi Yanhong; Tang Jun

2010-01-01

332

Isolation of a dihydrobenzofuran lignan, icariside E4, with an antinociceptive effect from Tabebuia roseo-alba (Ridley) Sandwith (Bignoniaceae) bark.  

PubMed

The antinociceptive activity of icariside E4, a dihydrobenzofuran-type lignan isolated from Tabebuia roseo-alba (Ridley) Sandwith (Bignoniaceae) bark, was evaluated in mice by using chemical and thermal models of nociception. Intraperitoneal (i.p.) administration of crude T. roseo-alba bark extract and its methanol fraction inhibited acetic acid-induced abdominal constriction in mice. Furthermore, i.p. administration of 0.1, 1, and 10mg/kg of icariside E4 reduced the number of writhes evoked by acetic acid injection by 46.9, 82.3, and 66.6%, respectively. Icariside E4 administration had no effect in the first phase of the formalin test, but it reduced nociceptive behavior in the second phase as indicated by a reduction in the licking time. Icariside E4 did not modify thermal nociception in the hot-plate test model, suggesting that it had a peripheral antinociceptive action. The antinociceptive effect of icariside E4 in the writhing test was reversed by pre-administration of glibenclamide, but not of naloxone, atropine, yohimbine, or haloperidol. Together, these results indicated that the antinociceptive activity of icariside E4 from T. roseo-alba in models of chemical pain occurred through ATP-sensitive K(+) channel-dependent mechanisms. PMID:25138119

Ferreira-Jnior, Jesu C; Conserva, Lucia M; Lyra Lemos, Rosangela P; de Omena-Neta, Genilda C; Cavalcante-Neto, Araken; Barreto, Emiliano

2014-08-20

333

Results of the independent radiological verification survey of the remedial action performed at the former Alba Craft Laboratory site, Oxford, Ohio, (OXO001)  

SciTech Connect

Between October 1952 and February 1957, National Lead of Ohio (NLO), a primary contractor for the Atomic Energy Commission (AEC), subcontracted certain uranium machining operations to Alba Craft Laboratory, Incorporated, located at 10-14 West Rose Avenue, Oxford, Ohio. In 1992, personnel from Oak Ridge National Laboratory (ORNL) confirmed the presence of residual radioactive materials from the AEC-related operations in and around the facility in amounts exceeding the applicable Department of Energy (DOE) guidelines. Although the amount of uranium found on the property posed little health hazard if left undisturbed, the levels were sufficient to require remediation to bring radiological conditions into compliance with current guidelines, thus ensuring that the public and the environment are protected. A team from ORNL conducted a radiological verification survey of the former Alba Craft Laboratory property between December 1994 and February 1995. The survey was conducted at the request of DOE and included directly measured radiation levels, the collection and analysis of soil samples to determine concentrations of uranium and certain other radionuclides, and comparison of these data to the guidelines. This document reports the findings of this survey. The results of the independent verification survey of the former Alba Craft Laboratory property demonstrate that all contaminated areas have been remediated to radionuclide concentrations and activity levels below the applicable guideline limits set by DOE.

Kleinhans, K.R.; Murray, M.E.; Carrier, R.F.

1996-04-01

334

Temporal evolution of fluvial drainage systems, volcanic eruption, and faulting on the northwest flank of Alba Patera as revealed by photogeological mapping  

NASA Astrophysics Data System (ADS)

Although Alba Patera is one of the largest volcanoes in aerial extent in the solar system (~6.8 km high and >1000 km in radius), the geologic processes responsible for shaping its exceedingly low-angle flanks remain poorly constrained. These flanks are covered in lava flows, valleys and both radial and annular grabens. Previous attempts assume that the annular grabens developed during the terminal stage of volcanic development, preceded by lava flows and surface water flow in the early stages of volcanic construction. In this study, we analyze high-resolution CTX, HiRISE and HRSC images in conjunction with digital topographic data from the HRSC and MOLA. This data reveals complex crosscutting relationships between faults, drainage network development and lava flows on the northwestern flank of Alba Patera. Although the lava flows are hard to distinguish, they appear to be the oldest. Mutual and subsequent crosscutting relationships indicate a minimum of two generations of lava flows, three generations of drainage and three generations of faults. Successive generations of drainages and faults suggest that the tectonic processes responsible for creating grabens on the volcano flank operated continuously and were coeval with drainage formation. Our new observations could have implications for the source of water draining the flanks of Alba Patera.

Chowdhury, D.; Yin, A.; Peltzer, G.

2012-12-01

335

Effect of water stress on the agressiveness of oilsseed rape (Brassica napus L.) and two mustards (Sinapis alba L. and S. arvensis L.).  

PubMed

Oilseed rape (Brassica napus L.), a winter sown crop, may compete for water especially with Brassicaceae weeds. Investigating plant competition under water stress conditions is necessary for achieving a good yield in a Mediterranean climate characterized by a scarse water availability. This experiment was carried out to study the competiveness of oilseed rape (Brassica napus L.) with two brassicaceae weeds (Sinapis alba L. and S. arvensis L.). Species were grown at a density of two plants per bucket either in monoculture or as a binary mixture under water stress conditions in a greenhouse. Results of monoculture showed that B. napus had the highest shoot dry matter. Shoot dry matter of B. napus was more reduced by intraspecific competition than by interspecific competition due to S. arvensis. Shoot dry matter of S. alba in monoculture was higher than in mixture with S. arvensis, but more reduced in mixture with B. napus. In case of S. arvensis, shoot dry matter was more reduced by interspecific competition than by intraspecific competition. Agressivity based on grain yield showed, that B. napus was the most agressive species followed by S. alba. This agressivity did not change by the imposed water stress. PMID:15149141

Maataoui, A; Talouizte, A; Benbella, M; Bouhache, M

2003-01-01

336

Effect of NaCl on ionic content and distribution in suspension-cultured cells of the halophyte Sonneratia alba versus the glycophyte Oryza sativa.  

PubMed

The effect of a high concentration of NaCl on the intra- (cytoplasmic matrix and vacuole) and extracellular (cell wall) distribution of Na, Cl, K, Mg, Ca, S, and P was investigated in suspension-cultured cells of the mangrove halophyte Sonneratia alba and compared to cultured cells of glycophytic rice (Oryza sativa). No significant differences were observed in ultrastructural features of cluster cells of both species cultured with and without 50mM NaCl. Quantitative X-ray microanalysis of cryosections of the cells cultured in the presence of 50mM NaCl showed that the Na concentration ([Na]) and Cl concentration ([Cl]) significantly increased in all three cell components measured. In S. alba, the [Na] was highest in the vacuole and lowest in the cytoplasmic matrix, while the [Cl] was highest in the cell wall and lowest in the cytoplasmic matrix. In O. sativa, however, the [Na] and [Cl] were highest in the cell wall, and the [Na] was lowest in the cytoplasmic matrix. Thus, the possible activities for Na and Cl transport from the cytoplasmic matrix into the vacuole were greater in S. alba than in O. sativa, suggesting that halophilic mangrove cells gain salt tolerance by transporting Na and Cl into their vacuoles. In O. sativa, the addition of NaCl to the culture medium caused no significant changes to the intracellular concentrations of various elements, such as K, P, S, Ca, and Mg, which suggests the absence of a direct relationship with the transport Na and Cl. In contrast, a marked decrease in the Ca concentration ([Ca]) in the cytoplasmic matrix and vacuole and an approximately two-fold increase in the P concentration ([P]) in the cytoplasmic matrix were found in S. alba, suggesting that the decrease in the [Ca] is related to the halophilic nature of S. alba (as indicated by the inward movement of Na(+) and Cl(-)). The possible roles of a Na(+)/Ca(2+) exchange mechanism in halophilism and the effect of the [P] on the metabolic activity under saline conditions are discussed. PMID:25062529

Hayatsu, Manabu; Suzuki, Suechika; Hasegawa, Ai; Tsuchiya, Shinpei; Sasamoto, Hamako

2014-09-15

337

The influence of chemoreception on the foraging behaviour of two species of sandpiper, calidris alba and calidris alpina  

NASA Astrophysics Data System (ADS)

This study is concerned with the ability of two wader species, the sanderling, Calidris alba and the dunlin, C. alpina to determine the presence of prey in a sediment by using their sense of taste, and whether they use this information while foraging for prey hidden in the sediment. Preference tests were designed in which the birds were presented with a choice of 2 jars filled with sand from 3 possible combination pairs: (1) "food" and "no taste", (2) "food" and "taste", and (3) "taste" and "no taste". Preferences were measured as the relative amount of time spent foraging in each jar of each pair. Significantly more time was spent on "taste" than on "no taste" for the "taste" and "no taste" combination. More time was spent on "taste" than on "no taste" when each was paired with "food" for 3 out of 4 situations. Foraging technique on "taste" was observed to be more purposeful and methodical than on "no taste". Both species are shown to be able to use taste while foraging to determine whether prey is present, and can modify their foraging behaviour by persisting in a spot that gives no information on the presence of prey other than taste, and by using a different, more determined searching technique.

Van Heezik, Y. M.; Gerritsen, A. F. C.; Swennen, C.

338

Results of the radiological survey at the former Alba Craft Laboratory site properties, Oxford, Ohio (OXO001)  

SciTech Connect

At the request of the US Department of Energy (DOE), a team from Oak Ridge National Laboratory conducted a radiological survey at the former Alba Craft Laboratory Site Properties, Oxford, Ohio. The survey was performed in July and September of 1992. The purpose of the survey was to determine whether the property was contaminated with radioactive residues, primarily [sup 238]U, from uranium machining operations conducted for National Lead of Ohio, a prime Atomic Energy Commission contractor. The survey included scan measurement of direct radiation levels inside and outside the former laboratory, outdoors on eight properties adjoining the former laboratory, and the city right-of-way adjacent to the surveyed properties. Radionuclide concentrations were determined in outdoor surface and subsurface soil samples taken from each property and the exterior of the laboratory. Fixed surface residual radioactivity was measured inside the laboratory and outside the building. Air samples were collected, direct exposure was measured, and samples were collected to measure transferable radioactivity inside the building. Results of the survey indicate areas where surface and soil contamination level s are above the DOE guidelines for uncontrolled areas.

Murray, M.E.; Brown, K.S.; Mathis, R.A.

1993-03-01

339

The chloroplast genome of Nymphaea alba: whole-genome analyses and the problem of identifying the most basal angiosperm.  

PubMed

Angiosperms (flowering plants) dominate contemporary terrestrial flora with roughly 250,000 species, but their origin and early evolution are still poorly understood. In recent years, molecular evidence has accumulated suggesting a dicotyledonous origin of monocots. Phylogenetic reconstructions have suggested that several dicotyledonous groups that include taxa such as Amborella, Austrobaileya, and Nymphaea branch off as the most basal among angiosperms. This has led to the concept of monocots, "eudicots," "basal dicots," and "ANITA" groupings. Here, we present the sequence and phylogenetic analyses of the chloroplast DNA of Nymphaea alba. Phylogenetic analyses of our 14-species data set, consisting of 29,991 aligned nucleotide positions per chloroplast genome, revealed consistent support for Nymphaea being a divergent member of a monophyletic dicot assemblage. Three distinct angiosperm lineages were supported in the majority of our phylogenetic analyses-eudicots, Magnoliopsida, and monocots. However, the monocot lineage leading to the grasses was the deepest branching. Although analyses of only one individual gene alignment (out of 61) is consistent with some recently proposed hypotheses for the paraphyly of dicots, we also report observations that nine genes do not support paraphyly of dicots. Instead, they support the basal monocot-dicot split. Consistent with this finding, we also report observations suggesting that the monocot lineage leading to the grasses has the strongest phylogenetic affinity to gymnosperms. Our findings have general implications for studies of substitution model specification and analyses of concatenated genome data. PMID:15084683

Goremykin, Vadim V; Hirsch-Ernst, Karen I; Wlfl, Stefan; Hellwig, Frank H

2004-07-01

340

Physiological and proteomic responses of different willow clones (Salix fragilis x alba) exposed to dredged sediment contaminated by heavy metals.  

PubMed

High biomass producing species are considered as tools for remediation of contaminated soils. Willows (Salix spp.) are prominent study subjects in this regard. In this study, different willow clones (Salix fragilis x alba) were planted on heavy-metal polluted dredging sludge. A first objective was assessment of the biomass production for these clones. Using a Gupta statistic, four clones were identified as high biomass producers (HBP). For comparison, a group of four clones with lowest biomass production were selected (LBP). A second objective was to compare metal uptake as well as the physiological and proteomic responses of these two groups. All these complementary data's allow us to have a better picture of the health of the clones that would be used in phytoremediation programs. Cd, Zn, and Ni total uptake was higher in the HBPs but Pb total uptake was higher in LBPs. Our proteomic and physiological results showed that the LBPs were able to maintain cellular activity as much as the HBPs although the oxidative stress response was more pronounced in the LBPs. This could be due to the high Pb content found in this group although a combined effect of the other metals cannot be excluded. PMID:24933908

Evlard, Aricia; Sergeant, Kjell; Ferrandis, Salvador; Printz, Bruno; Renaut, Jenny; Guignard, Cedric; Paul, Roger; Hausman, Jean-Francois; Campanella, Bruno

2014-01-01

341

Contracaecum multipapillatum (Nematoda: Anisakidae) from Egretta alba (Aves: Ardeidae) and comments on other species of this genus in Argentina.  

PubMed

During a parasitological survey of aquatic birds in Mar Chiquita coastal lagoon (Buenos Aires province, Argentina), specimens of Contracaecum Raillet & Henry, 1912 sp. were found in the esophagus and stomach of the great egret Egretta alba (Gmelin, 1789) (Aves: Ardeidae). The nematodes were identified as Contracaecum multipapillatum (Drasche, 1882) on the basis of the following features: ratio of ventricular appendage length to esophagus length, ratio of intestinal caecum length to esophagus length, spicule lengths, number and arrangement of postcloacal papillae (3-4 pairs of adanal papillae, 1 double pair, and a subterminal group of 2 subventral and 3 sublateral pairs). A complete description of the adult specimens of C. multipapillatum is given in the present paper, together with a discussion regarding the validity of other species of Contracaecum reported from Argentina. Contracaecum philomultipapillatum Labriola and Suriano, 1996 is reduced to a junior synonym of C. multipapillatum, and Contracaecum longicaecum Schuurmans Sterkhoven, 1952 is considered a species inquirenda. A revision of Contracaecum spheniscus Boero and Led, 1970 based on appropriate material is necessary. PMID:10958460

Navone, G T; Etchegoin, J A; Cremonte, F

2000-08-01

342

Biosynthesis of triacylglycerols containing very long chain monounsaturated acyl moieties in developing seeds. [Lunaria annua L. ; Sinapis alba L  

SciTech Connect

Particulate (15,000g) fractions from developing seeds of honesty (Lunaria annua L.) and mustard (Sinapis alba L.) synthesize radioactive very long chain monounsaturated fatty acids (gadoleic, erucic, and nervonic) from (1-{sup 14}C)oleoyl-CoA and malonyl-CoA or from oleoyl-CoA and (2-{sup 14}C)malonyl-CoA. The very long chain monounsaturated fatty acids are rapidly channeled to triacylglycerols and other acyl lipids without intermediate accumulation of their CoA thioesters. When (1-{sup 14}C)oleoyl-CoA is used as the radioactive substrate, phosphatidylcholines and other phospholipids are most extensively radiolabeled by oleoyl moieties rather than by very long chain monounsaturated acyl moieties. When (2-{sup 14}C)malonyl-CoA is used as the radioactive substrate, no radioactive oleic acid is formed and the newly synthesized very long chain monounsaturated fatty acids are extensively incorporated into phosphatidylcholines and other phospholipids as well as triacylglycerols. The pattern of labeling of the key intermediates of the Kennedy pathway, e.g. lysophosphatidic acids, phosphatidic acids, and diacylglycerols by the newly synthesized very long chain monounsaturated fatty acids is consistent with the operation of this pathway in the biosynthesis of triacylglycerols.

Fehling, E.; Murphy, D.J.; Mukherjee, K.D. (H.P. Kaufmann Institute, Muenster (West Germany))

1990-10-01

343

Transposable Element Insertion and Epigenetic Modification Cause the Multiallelic Variation in the Expression of FAE1 in Sinapis alba.  

PubMed

Naturally occurring heritable variation provides a fundamental resource to reveal the genetic and molecular bases of traits in forward genetic studies. Here, we report the molecular basis of the differences in the four alleles E(1), E(2), E(3), and e of the FATTY ACID ELONGATION1 (FAE1) gene controlling high, medium, low, and zero erucic content in yellow mustard (Sinapis alba). E(1) represents a fully functional allele with a coding DNA sequence (CDS) of 1521 bp and a promoter adjacent to the CDS. The null allele e resulted from an insertional disruption in the CDS by Sal-PIF, a 3100-bp PIF/Harbinger-like DNA transposon, whereas E(2) and E(3) originated from the insertion of Sal-T1, a 4863-bp Copia-like retrotransposon, in the 5' untranslated region. E(3) was identical to E(2) but showed cytosine methylation in the promoter region and was thus an epiallele having a further reduction in expression. The coding regions of E(2) and E(3) also contained five single-nucleotide polymorphisms (SNPs) not present in E(1), but expression studies in Saccharomyces cerevisiae indicated that these SNPs did not affect enzyme functionality. These results demonstrate a comprehensive molecular framework for the interplay of transposon insertion, SNP/indel mutation, and epigenetic modification influencing the broad range of natural genetic variation in plants. PMID:24934174

Zeng, Fangqin; Cheng, Bifang

2014-06-16

344

Michelia alba extract attenuates UVB-induced expression of matrix metalloproteinases via MAP kinase pathway in human dermal fibroblasts.  

PubMed

Solar ultraviolet (UV) radiation can cause skin photoaging by inducing secretion of matrix metalloproteinases (MMPs). It has been reported that MMPs, especially MMP-1, -3 and -9, reduce elasticity of the dermis by degrading collagen. Polyphenols are a group of compounds that exist mainly in glycosides in the plants and they may transform to aglycone after hydrolysis. Polyphenols can inhibit MMP expression and elastase activity. In this study, we investigated the effects of Michelia alba extract (MAE) on expression and activity of MMPs in human skin fibroblast cultures after UVB exposure. The results showed that MAE and its hydrolysates (MAH) inhibited collagenase and elastase activities. In addition, MAE exhibited antioxidant activity, elevated hyaluronic acid content and inhibited UVB-induced MMP-1, MMP-3 and MMP-9 expression. In addition, the zymography assay revealed that MAE also inhibited MMP-9 activity. We also found that MAE inhibited UVB-induced ERK and JNK kinase but not p38 kinase expression, suggesting that MAE may regulate the UVB-induced expression of MMP-1, MMP-3 and MMP-9 via the ERK and JNK kinase pathway. MAE could restore total collagen synthesis reduced by UVB. The results also suggest that MAE treatment may prevent UVB-induced extracellular matrix damage by inhibiting the expression of MMP-1, MMP-3 and MMP-9 through the MAP kinase pathway. Our findings imply that MAE is an effective agent against UVB-induced photodamage. PMID:22922035

Chiang, Hsiu-Mei; Chen, Hsin-Chun; Lin, Tsen-Jung; Shih, I-Chen; Wen, Kuo-Ching

2012-12-01

345

Histological, cytological and biochemical alterations induced by microcystin-LR and cylindrospermopsin in white mustard (Sinapis alba L.) seedlings.  

PubMed

This study compares the histological, cytological and biochemical effects of the cyanobacterial toxins microcystin-LR (MCY-LR) and cylindrospermopsin (CYN) in white mustard (Sinapis alba L.) seedlings, with special regard to the developing root system. Cyanotoxins induced different alterations, indicating their different specific biochemical activities. MCY-LR stimulated mitosis of root tip meristematic cells at lower concentrations (1 ?g ml-1) and inhibited it at higher concentrations, while CYN had only inhibitory effects. Low CYN concentrations (0.01 ?g ml-1) stimulated lateral root formation, whereas low MCY-LR concentrations increased only the number of lateral root primordia. Both inhibited lateral root development at higher concentrations. They induced lignifications, abnormal cell swelling and inhibited xylem differentiation in roots and shoots. MCY-LR and CYN induced the disruption of metaphase and anaphase spindles, causing altered cell divisions. Similar alterations could be related to decreased protein phosphatase (PP1 and PP2A) activities in shoots and roots. However, in vitro phosphatase assay with purified PP1 catalytic subunit proved that CYN in contrast to MCY-LR, decreased phosphatase activities of mustard in a non-specific way. This study intends to contribute to the understanding of the mechanisms of toxic effects of a protein phosphatase (MCY-LR) and a protein synthesis (CYN) inhibitory cyanotoxin in vascular plants. PMID:23567832

Mth, C; Vasas, G; Borbly, G; Erd?di, F; Beyer, D; Kiss, Andrea; Surnyi, G; Gonda, S; Jmbrik, Katalin; M-Hamvas, Mrta

2013-03-01

346

Novel glutaminase free L-asparaginase from Nocardiopsis alba NIOT-VKMA08: production, optimization, functional and molecular characterization.  

PubMed

Studies were carried out for the optimization and production of novel extracellular glutaminase-free L-asparaginase from Nocardiopsis alba NIOT-VKMA08. Among the tested carbon and nitrogen sources, maximum L-asparaginase production was observed with a combination of L-asparagine and maltose (1.5%) and twofold increase in yield (18.47IUmL(-1)) was observed with newly optimized NIOT-asparaginase medium. Activity of the purified enzyme was moderately inhibited by various divalent cations and thiol group blocking reagents, with K m and V max of 0.127mM and 5.50Ug(-1). Optimum pH and temperature of purified L-asparaginase for the hydrolysis of L-asparagine was 8.0 and 37C, respectively. The enzyme inhibited polyacrylamide formation in 10% solution and it was very specific for its natural substrate L-asparagine. Partial glutaminase activity was not detected, which could reduce the possibility of side effects during cancer therapy. L-Asparaginase biosynthesis gene (ansA) was cloned and transformed in E. coli JM109. The ansA gene sequence reported in this study contains several base substitutions with that of reported sequences in GenBank, resulting in altered amino acid sequences of the translated protein. PMID:25274019

Meena, Balakrishnan; Anburajan, Lawrance; Dheenan, Palaiya Sukumaran; Begum, Mehmuna; Vinithkumar, Nambali Valsalan; Dharani, Gopal; Kirubagaran, Ramalingam

2014-10-01

347

Multiplication and growth of hybrid poplar (Populus alba P. tremula) shoots on a hormone-free medium.  

PubMed

The present study explored an alternative approach for poplar micropropagation, based on the restriction of gas exchange between inside and outside environments of culture vessel, rather than on the application of exogenous hormones. Apical and nodal stem segments (explants) excised from in vitro-developed shoots of hybrid white poplar (Populus alba L. P. tremula L.) were incubated in either sealed (with Parafilm) or unsealed capped glass culture tubes (150 20 mm) on a hormone-free Woody Plant Medium. Shoot proliferation on apical explants was observed in sealed culture tubes but not in the unsealed ones; the difference between these two samples in respect of shoot number increased in the course of time and became threefold after three months of culture, with 3.2 0.4 (mean SE) shoots per explant in the sealed tubes versus 1.1 0.1 in the unsealed ones (for comparison, the mean shoot numbers on nodal explants were 2.4 0.3 and 3.4 0.4 in the unsealed and sealed culture tubes, respectively). Moreover, the shoots taken from the sealed culture tubes could be distinguished by superior shoot length, if compared to the shoots from the unsealed tubes, during the subsequent culture stage under uniform conditions. PMID:25194737

Ziauka, J; Kuusien?, Sigut?

2014-09-01

348

Symplastic isolation of the sieve element-companion cell complex in the phloem of Ricinus communis and Salix alba stems.  

PubMed

The anatomical and physiological isolation of the sieve element-companion cell complex (se-cc complex) was investigated in stems of Ricinus communis L. and Salix alba L. In Ricinus, the plasmodesmatal frequencies were in the proportions 8?1?2?30, in the order given, at the interfaces between sieve tube-companion cell, sieve tube-phloem parenchyma cell, companion cellphloem parenchyma cell, and phloem parenchyma cellphloem parenchyma cell. The membrane potentials of the se-cc complex and the surrounding phloem-parenchyma cells sharply contrasted: the membrane potential of the se-cc complex was about twice as negative as that of the phloem parenchyma. Lucifer Yellow CH injected into the sieve element or into the companion cell remained within the se-cc complex. Dye introduced into phloem parenchyma only moved (mostly poorly) to other phloem-parenchyma cells. The distribution of the plasmodesmatal frequencies, the differential dye-coupling and the sharp discontinuities in membrane potentials indicate that the se-cc complexes constitute symplast domains in the stem phloem. Symplastic autonomy is discussed as a basic necessity for the functioning of the se-cc complex in the stem. PMID:24193535

van Bel, A J; Kempers, R

1991-12-01

349

Determination of As in tree-rings of poplar (Populus alba L.) by U-shaped DC arc.  

PubMed

An argon-stabilized U-shaped DC arc with a system for aerosol introduction was used for determination of As in poplar (Populus alba L.) tree-rings. After optimization of the operating parameters and selection of the most appropriate signal integration time (30 s), the limit of detection for As was reduced to 15.0 ng/mL. This detection limit obtained with the optimal integration time was compared with those for other methods: inductively coupled plasma-atomic emission spectrometry (ICP-AES), direct coupled plasma-atomic emission spectrometry (DCP-AES), microwave induced plasma-atomic emission spectrometry (MIP-AES) and improved thermospray flame furnace atomic absorption spectrometry (TS-FF-AAS). Arsenic is toxic trace element which can adversely affect plant, animal and human health. As an indicator of environment pollution we collected poplar tree-rings from two locations. The first area was close to the "Nikola Tesla" (TENT-A) power plant, Obrenovac, while the other was in the urban area of Novi Sad. In all cases elevated average concentrations of As were registered in poplar tree-rings from the Obrenovac location. PMID:18351436

Markovi?, D M; Novovi?, I; Viloti?, D; Ignjatovi?, Lj

2009-04-01

350

Cellulose and lignin biosynthesis is altered by ozone in wood of hybrid poplar (Populus tremulaalba)  

PubMed Central

Wood formation in trees is a dynamic process that is strongly affected by environmental factors. However, the impact of ozone on wood is poorly documented. The objective of this study was to assess the effects of ozone on wood formation by focusing on the two major wood components, cellulose and lignin, and analysing any anatomical modifications. Young hybrid poplars (Populus tremulaalba) were cultivated under different ozone concentrations (50, 100, 200, and 300?nl l?1). As upright poplars usually develop tension wood in a non-set pattern, the trees were bent in order to induce tension wood formation on the upper side of the stem and normal or opposite wood on the lower side. Biosynthesis of cellulose and lignin (enzymes and RNA levels), together with cambial growth, decreased in response to ozone exposure. The cellulose to lignin ratio was reduced, suggesting that cellulose biosynthesis was more affected than that of lignin. Tension wood was generally more altered than opposite wood, especially at the anatomical level. Tension wood may be more susceptible to reduced carbon allocation to the stems under ozone exposure. These results suggested a coordinated regulation of cellulose and lignin deposition to sustain mechanical strength under ozone. The modifications of the cellulose to lignin ratio and wood anatomy could allow the tree to maintain radial growth while minimizing carbon cost. PMID:21357770

Richet, Nicolas; Afif, Dany; Huber, Franoise; Pollet, Brigitte; Banvoy, Jacques; El Zein, Rana; Lapierre, Catherine; Dizengremel, Pierre; Perr, Patrick; Caban, Mireille

2011-01-01

351

Penetration, Development, and Reproduction of Heterodera schachtii on Fagopyrum esculentum, Phacelia tanacetifolia, Raphanus sativus, Sinapis alba, and Brassica oleracea  

PubMed Central

The penetration, development, and reproduction of a California population of the sugarbeet cyst nematode, Heterodera schachtii, was observed on cultivars of cabbage (Brassica oleracea), phacelia (Phacelia tanacetifolia), buckwheat (Fagopyrum esculentum), oilseed radish (Raphanus sativus), and white mustard (Sinapis alba). With the exception of the nonhost, phacelia, all were readily penetrated by second-stage juveniles of H. schachtii. After 38 days at 25 C, no cysts were observed on phacelia cv. Angelia or on the oilseed radish cv. Nemex and Pegletta. Cyst production was low (<2.5 cysts/plant) on the buckwheat cv. Tardo and Prego and most of the oilseed radish cultivars. Cyst production was intermediate (5-14 cysts/plant) on most of the white mustard cultivars, and high on cabbage (20-110 cysts/plant). In microplot studies conducted over 133 days (approx. 450 degree-days, base 8 C), the reproductive index for H. schachtii was greater than 1.0 for cultivars of phacelia, oilseed radish, and white mustard as welt as in fallow treatments, indicating the need for further research on the use of these crops under field conditions. PMID:19279828

Gardner, J.; Caswell-Chen, E. P.

1993-01-01

352

Morus spp. as a New Biomass Crop  

Technology Transfer Automated Retrieval System (TEKTRAN)

Generating enthusiasm from political or business entities to promote conservation requires economic viability in times of economic downturn. Massive reforestation is being considered as a governmental policy to address the climate crisis. It offers an enormous opportunity to redefine forestry plan...

353

Temporal Evolution of Volcanic Eruption, Fluvial Drainage Systems and Faulting on the Northwest Flank of Alba Patera as Revealed by Photogeological Mapping  

NASA Astrophysics Data System (ADS)

Although Alba Patera is the largest volcano in aerial extent in the solar system (6.8 km high and >1000 km in radius), the geologic processes responsible for shaping its exceedingly low-angle flanks remain poorly constrained. These flanks are covered in lava flows, valleys and both radial and annular grabens. Previous attempts, limited by the resolution of the satellite images, assume that the annular grabens formed during the terminal stage of volcanic development whereas surface water flow occurred in the early stage of volcanic construction. In this study, we analyze high-resolution CTX satellite images in conjunction with digital topographic data from MOLA. Our work reveals complex cross cutting relationships between faults, drainage network development and lava flows on the northwestern flank of Alba Patera. We observe a minimum of three generations of lava flows, three generations of drainage channels and three generations of faults. Mutual and successive cross-cutting relationships between drainage channels and faults indicate that the tectonic processes responsible for creating grabens on the volcano flank operated continuously and were coeval with drainage formation. The lava flows are observed to be the oldest geomorphic features and the third generation of faults as the youngest geomorphic features in our mapped region. Crater counting indicates that the surface within the mapped region is Amazonian in age. An analysis of the crater densities reveals a decline in crater densities from the south to the north section of the mapped region. This could be attributed to resurfacing in the north due to sediments deposited by northward flowing drainage channels. Crater counting age estimates for the south section yield a result of 1.74 Ga, +/- 0.12 Ga and 1.35 Ga, +/- 0.26 Ga for the north section. Hence, the younger age estimates of the northern surface could help further constrain the age of the drainage channels and faults on the northwest flank of Alba Patera.

Chowdhury, Diya

2013-01-01

354

Competitiveness and dry matter allocation of oilseed rape (Brassica napus L.) and two mustards (Sinapis alba L. and S. arvensis L.) under water stress conditions.  

PubMed

In Morocco, oilseed rape is commonly exposed to mustards competition which are not totally controlled by herbicides. To understand the competitiveness of each species, growth parameters should be studied notably dry matter allocation. The objective of this study was to confirm the competitiveness of oilseed rape with regard to Sinapis alba and S. arvensis and to investigate how the dry matter is allocated. A pot experiment was undertaken with a quartz sand as substrate. Two plant densities were tested (one and two plants). The binary density was either a monoculture or a mixture. Half the pots were maintained at field moisture capacity and the other half was irrigated up to 70% of its water holding capacity. Dry matter allocation of each species at density two was compared to that of the same species at density one. Results of replacement series diagrams and those of the relative crowding coefficient (based on total dry matter) showed that Brassica napus was more competitive than S. alba. S. arvensis was the least competitive. Under competition, B. napus irrigated at water holding capacity allocated more dry matter to stem when compared to its dry matter at density one. Under the same condition, when reducing water supply, B. napus allocated more dry matter to leaves. In case of S. alba, dry matter percent in leaves and roots were respectively low and high in normally irrigated plant and inversely under water shortage. S. arvensis allocated high and low dry matter percent respectively to root than to leaves when sufficiently irrigated. But no clear tendency was noticed under water shortage, for this species. PMID:16363361

Maataoui, A; Talouizte, A; Benbella, M; Bouhache, M

2005-01-01

355

Chemical, ultrastructural and supramolecular analysis of tension wood in Populus tremula x alba as a model substrate for reduced recalcitrance  

SciTech Connect

Biomass is one of the most abundant potential sustainable sources for fuel and material production, however to fully realize this potential an improved understanding of lignocellulosic recalcitrance must be developed. In an effort to appreciate the underlying phenotypic, biochemical and morphological properties associated with the reduced recalcitrance observed in tension stress-induced reaction wood, we report the increased enzymatic sugar yield and corresponding chemical and ultrastructural properties of Populus tension wood. Populus tremula x alba (PTA) was grown under tension and stem segments containing three different wood types: normal wood (NW), tension wood (TW) from the elongated stem side and opposite wood (OW) from the compressed stem side were collected. A variety of analytical techniques were used to describe changes occurring as a result of the tension stress-induced formation of a gelatinous cell wall layer (G-layer). For example, gel permeation chromatography (GPC) and 13C solid-state nuclear magnetic resonance (NMR) revealed that the molecular weight and crystallinity of cellulose in TW is greater than that of cellulose acquired from NW. Whole cell ionic liquid and other solid-state NMR analysis detailed the structure of lignin and hemicellulose in the samples, detecting the presence of variations in lignin and hemicellulose sub-units, linkages and semi-quantitatively estimating the relative amounts of syringyl (S), guaiacyl (G) and p-hydroxybenzoate (PB) monolignol units. It was confirmed that TW displayed an increase in PB or H-like lignin and S to G ratio from 1.25 to 1.50 when compared to the NW sample. Scanning electron microscopy (SEM) and coherent anti-Stokes Raman scattering (CARS) were also used to evaluate the morphology and corresponding spatial distribution of the major lignocellulosic components. We found changes in a combination of cell wall properties appear to influence recalcitrance more than any single factor alone.

Foston, Marcus B [ORNL; Hubbell, Christopher A [ORNL; Samuel, Reichel [ORNL; Jung, Seung-Yong [ORNL; Ding, Shi-You [ORNL; Zeng, Yining [ORNL; Jawdy, Sara [ORNL; Sykes, Virginia R [ORNL; Tuskan, Gerald A [ORNL; Kalluri, Udaya C [ORNL; Ragauskas, Arthur J [ORNL

2011-01-01

356

Effect of Pb, Cd, Hg, As, and Cr on germination and root growth of Sinapis alba seeds  

SciTech Connect

Heavy metals have been widely recognized as highly toxic and dangerous. Plants, algae and bacteria respond to heavy metal toxicity by inducing different enzymes, creating ion influx/efflux for ionic balance and synthesizing small peptides. These peptides bind metal ions and reduce toxicity. Metals come from the natural weathering processes of the earth's crust, industrial discharge, pest or disease control agents applied to plants, urban run-off, mining, soil erosion, sewage effluents, air pollution fallout and other sources. Plants can be affected directly by air pollutants, as well as indirectly through the contamination of soil and water. At the same time, plant is a member of the food chain and may create a risk for man and animals through contamination of food supplies. In recent years a considerable progress has been made in the assay of trace elements in environmental plant samples. For higher plants, the accumulation of metals, especially cadmium, was tested when plants grew on sewage sludge-amended soils or in soils of cadmium residues from phosphate fertilizers. No reports were accessible to us on the direct effect of tested metals (Pb, Hg, Cr, As, Cd) on seed germination and root growth. The paucity of literature initiated our present work. In this study, an attempt has been made to investigate the acute toxicity of five metals (Cr[sup 6+], Cd[sup 2+], Hg[sup 2+], Pb[sup 2+], As[sup 5+]) which are widely spread in the environment and are widely recognized as highly toxic and dangerous. As the testing subject, mustard seeds (Sinapis alba) were used and their germination and root growth were observed. 12 refs., 1 tab.

Fargasova, A. (Slovak Technical Univ., Bratislava (Czech Republic))

1994-03-01

357

Anti-Obesity Effects of Melastoma malabathricum var Alba Linn in Rats Fed with a High-Fat Diet.  

PubMed

Obesity is one of the major public health problems worldwide and it is generally associated with many diseases. Although synthetic drugs are available for the treatment of obesity, herbal remedies may provide safe, natural, and cost-effective alternative to synthetic drugs. One example of such drugs is Melastoma malabathricum var Alba Linn (MM). Although several studies have been reported for the pharmacological activities of MM, there is no report on the anti-obesity effect of MM. The aim of the present study is to evaluate the anti-obesity potential of methanolic extract of MM. The anti-obesity effect of MM on rats fed with a high-fat diet was investigated through determination of the changes in body weight, fat weight, organ weights, and blood biochemicals. The animals in this study were divided into three groups: a normal group with a standard diet (N), a control group fed with high-fat diet (C), and a MM treatment group fed with high-fat (HFD + MM) diet for 8 weeks. There was no significant difference in the amount of food intake between control and HFD + MM treatments. These results also suggest that MM does not induce a dislike for the diet due to its smell or taste. The study shows that MM significantly prevented increases in body weight, cholesterol, LDL, HDL, and total lipids that resulted from the high-fat diet. MM also decreased the epididymal fat (E-fat) and retroperitoneal fat (R-fat) weights and phospholipid concentrations induced by the high-fat diet. On the basis of these findings, it was concluded that MM had anti-obesity effects by suppressing body weight gain and abdominal fat formation. PMID:25374344

Karupiah, Sundram; Ismail, Zhari

2014-11-01

358

Biochemical and genetic analysis of a cutinase-type polyesterase from a thermophilic Thermobifida alba AHK119.  

PubMed

Recombinant polyesterase (Est119) from Thermobifida alba AHK119 was purified by two chromatography steps. The final protein was observed as a single band in SDS-PAGE, and the specific activity of Est119 for p-nitrophenyl butyrate was 2.30u/mg. Purified Est119 was active with aliphatic and aliphatic-co-aromatic polyesters. Kinetic data indicated that p-nitrophenyl butyrate (pNPB) or hexanoate was the best substrate for Est119 among p-nitrophenyl acyl esters. Calcium was required for full activity and thermostability of Est119, which was stable at 50C for 16h. Three-dimensional modeling and biochemical characterization showed that Est119 is a typical cutinase-type enzyme that has the compact ternary structure of an ?/?-hydrolase. Random and site-directed mutagenesis of wild-type Est119 resulted in improved activity with increased hydrophobic interaction between the antiparallel first and second ?-sheets (A68V had the greatest effect). Introduction of a proline residue (S219P) in a predicted substrate-docking loop increased the thermostability. The specific activity of the A68V/S219P mutant on pNPB was increased by more than 50-fold over the wild type. The mutant was further activated by 2.6-fold (299u/mg) with 300mM Ca(2+) and was stable up to 60C with 150mM Ca(2+). Another identical gene was located in tandem in the upstream of est119. PMID:22183084

Thumarat, Uschara; Nakamura, Ryota; Kawabata, Takeshi; Suzuki, Hideyuki; Kawai, Fusako

2012-07-01

359

Electron Microscopy and X-ray Analysis of Cr-Containing Precipitates Synthesized by Newly Isolated Actinobacterium, Flexivirga alba ST13(T.).  

PubMed

Chromium(Cr) precipitate synthesized by Cr(VI)-reducing bacterium Flexivirga alba ST13(T) was examined using transmission electron microscopy (TEM) and the energy dispersive X-ray (EDX). The strain showed altered-morphology after exposing to Cr(VI) in minimal medium. The resultant precipitate included bacterial pellet and needle-like structure which was similar to the structure made from Cr(OH)3 precipitate. Cr was observed in bacterial cells using TEM-EDX. Bacteria with high electron density showed the precipitation of Ca in addition to Cr. The isolated strain would be useful to precipitate Cr from Cr(VI)-containing environment. PMID:24891744

Sugiyama, Tomoyasu; Sakaguchi, Toshifumi

2014-09-01

360

Use of dimethyldioxirane in the epoxidation of the main constituents of the essential oils obtained from Tagetes lucida, Cymbopogon citratus, Lippia alba and Eucalyptus citriodora.  

PubMed

Dimethyldioxirane (DMDO), a widely used oxidant in organic synthesis is considered an environmentally friendly oxygen transfer reagent because acetone is the only byproduct formed in its oxidation reactions. This work describes the isolation of the main constituents (terpenes) in the essential oils obtained from Tagetes lucida, Cymbopogon citratus, Lippia alba and Eucalyptus citriodora, their epoxidation with DMDO in acetone solution and the characterization of the resulting epoxides by GC-MS (EI) and NMR. This is one of the first reports involving the application of dioxirane chemistry to essential oils in order to generate modified compounds with potential uses in several areas of medicine and industry. PMID:21834225

Veloza, Luz A; Orozco, Lina M; Seplveda-Arias, Juan C

2011-07-01

361

Comparative study on in vitro activities of citral, limonene and essential oils from Lippia citriodora and L. alba on yellow fever virus.  

PubMed

The aim of this study was to compare the antiviral activities in vitro of citral, limonene and essential oils (EOs) from Lippia citriodora and L. alba on the replication of yellow fever virus (YFV). Citral and EOs were active before and after virus adsorption on cells; IC50 values were between 4.3 and 25 microg/mL and SI ranged from 1.1 to 10.8. Results indicate that citral could contribute to the antiviral activity of the L. citriodora EO. Limonene was not active and seemed to play an insignificant role in the antiviral activity of the examined EOs. PMID:23513741

Gmez, Luz Angela; Stashenko, Elena; Ocazionez, Raquel Elvira

2013-02-01

362

Use of Internal Transcribed Spacer Primers and Fungicide Treatments to Study the Anther-Smut Disease, Microbotryum violaceum (=Ustilago violacea), of White Campion Silene alba (=Silene latifolia).  

PubMed

We report the construction and use of polymerase chain reaction (PCR) primers for detection of Microbotryum violaceum in Silene alba. Such primers show that the pathogen is present in the aboveground bud meristems, flower pedicels, and flower-stem internodes but not in the flowering-stem leaves and roots of flowering plants. Use of primers also showed that the pathogen was absent from plants that had been inoculated with the fungus but remained healthy. The fungicides Folicur and Bayleton cured plants of the disease, and the absence of the fungus from such cured plants was confirmed using the PCR primers. PMID:10568785

Akhter; Antonovics

1999-11-01

363

A multiresidue method for 20 pesticides in Radix paeoniae Alba of Chinese herb by gas chromatography with electron-capture detection.  

PubMed

A rapid multiresidue method was developed for the determination of 20 pesticides in Radix paeoniae Alba of Chinese herb by ultrasonic wave extraction, silica gel column chromatography and gas chromatography (GC) with electron-capture detection (ECD) in this study, Mean recoveries of the method ranged from 74.45 to 115.14%. The validation of the proposed approach was verified on Isatis indigotica Fort, Pltycodon grandiflorum, Cotex mouta and Poria cocos of Chinese herbs; good recoveries were also obtained in the range of 72.51-113.47%, respectively. PMID:20431860

Qian, Gao; Rimao, Hua; Feng, Tang; Xiangwei, Wu; Xuede, Li; Haiqun, Cao; Yanhong, Shi; Jun, Tang

2010-06-01

364

Quantitative evaluation main of the components in Paeoniae Radix Alba-Atractylodis Macrocephalae Rhizoma herbal pair by high-performance liquid chromatography.  

PubMed

The aim of this study was to investigate the influence of compatibility on the contents of main compounds in Paeoniae Radix Alba and Atractylodis Macrocephalae Rhizoma. Ten compounds were separated on an Inertsil ODS-SP Extend C18 column (250 mm 4.6 mm, 5 ?m) and detected by a diode array detector with the mobile phase consisting of aqueous phosphoric acid (0.1%, v/v; A) and acetonitrile (B) by linear gradient elution. All analytes showed good linearity over a wide concentration range (r(2) ? 0.9989). The limits of detection and quantification were <8.10 and 10.80 ?g/mL, respectively. The intra- and interday variations were <4.36%. The average recoveries were observed from 94.90 to 103.38%, with relative standard deviation ranging from 1.23 to 3.15% for the analytes. The established method was reliable enough for global quality evaluation of Paeoniae Radix Alba, Atractylodis Macrocephalae Rhizoma, and their co-decoctions. PMID:25413256

Wu, Xin; Cao, Gang; Li, Qinglin; Cai, Baochang; Hu, Siyi

2015-01-01

365

Anti-inflammatory and antioxidant activities, functional properties and mutagenicity studies of protein and protein hydrolysate obtained from Prosopis alba seed flour.  

PubMed

Prosopis species are considered multipurpose trees and shrubs by FAO and their fruit constitute a food source for humans and animals. According to the "Cdigo Alimentario Argentino", "algarrobo flour" is produced by grinding the whole mature pod, but in the traditional process most of the seeds are discarded. In this paper, the flour from seed was obtained. Then, the proteins were extracted and enzymatic hydrolysis was carried out. According to their amino acid profile and chemical score (>100%), the Prosopis alba proteins, are not deficient in essential amino acids considering the amount of amino acid necessary by adults. The protein isolate showed a good solubility (pH 7.4-9), emulsificant capacity, oil binding capacity and water adsorption capacity. The antioxidant ability of proteins was significantly increased with hydrolysis (SC50 values: 50-5?g/mL, respectively). Inhibitory activity of pro-inflammatory enzymes (lipoxygenase and phospholipase) was described. The mutagenicity/antimutagenicity of proteins and protein hydrolysates from seed flour were also analysed. The results suggest that P. alba cotyledon flour could be a new alternative in the formulation of functional foods not only for its high protein content but also by the biological and functional properties of its proteins and protein hydrolysates. PMID:24837968

Cattaneo, Florencia; Sayago, Jorge Esteban; Alberto, Mara Rosa; Zampini, Iris Catiana; Ordoez, Roxana Mabel; Chamorro, Vernica; Pazos, Adriana; Isla, Mara Ins

2014-10-15

366

An energy-circuit population model for great egrets (Ardea alba) at Lake Okeechobee, Florida, U.S.A  

USGS Publications Warehouse

I simulated the annual population cycles of Great Egrets (Ardea alba) at Lake Okeechobee, Florida, to provide a framework for evaluating the local population dynamics of nesting and foraging wading birds. The external forcing functions were solar energy, minimum air temperature, water depth, surface-water drying rate, and season. Solar input controlled the production of prey at moderate to high lake stages, but water area exerted primary control during a two-year drought. Modeling prey production as a linear function of water area resulted in underestimation of prey density during the drought, suggesting that prey organisms maintained high fecundity while concentrated in submerged vegetation at the lakeward fringe of the littoral zone. Simulation confirmed that large influxes of wading birds during the drought were the combined result of a regional refuge response and the availability of concentrated prey. Modeling immigration and emigration as primarily functions of the surface-water drying rate, rather than lake stage, resulted in a closer match of observed and simulated population trends for foraging birds, suggesting that the pattern of surface-water fluctuations was a more important factor than water depth. Simulation indicated an abrupt-threshold response rather than a linear association between foraging efficiency and low temperatures, which reduce activity levels of forage fishes. Great Egret breeder recruitment is primarily a function of prey availability, climate, and hydrologic trends, but simulation confirmed the concurrent involvement of a seasonal or physiological-readiness factor. An attractor function driven by high winter lake stages was necessary to reproduce observed patterns of breeder recruitment, suggesting that Great Egrets initiate nesting based on environmental cues that lead to peak food availability when nestlings are present. Poor correspondence of reproductive effort and nest productivity suggested that the drought compromised the birds' predictive abilities. The need to model breeder recruitment as a function of a maximum rate rather than the size of the local foraging population suggested that birds may nest on the lake even though on-lake foraging conditions are poor. Simulated and observed estimates of egg and hatching production did not match, suggesting that the causes of failure during incubation were complex or more localized than could be accounted for with lakewide hydrologic and climatic data. A forced increase in prey consumption of 12% was necessary to reproduce observed, high levels of nest productivity in 1990, which corresponded to the finding that panhandled fish constituted 10a??12% of the biomass fed to Great Egret nestlings that year.

Smith, Jeff P.

1997-01-01

367

An inverse relationship between allelopathic activity and salt tolerance in suspension cultures of three mangrove species, Sonneratia alba, S. caseolaris and S. ovata: development of a bioassay method for allelopathy, the protoplast co-culture method.  

PubMed

A bioassay method for allelopathy, the 'protoplast co-culture method' was developed to study the relationship between salt tolerance and allelopathy of three mangrove species, Sonneratia alba, S. caseolaris, and S. ovata. Plants of S. alba grow in the seaward-side high salinity region and plants of the latter two species grow in upstream-side regions of a mangrove forest, respectively. Effects of five sea salts (NaCl, KCl, MgCl2, MgSO4 and CaCl2) on the growth of the suspension cells of the latter two species were first investigated by a small-scale method using 24-well culture plates. S. ovata cells showed higher tolerance than S. caseolaris cells to NaCl and other salts, but were not as halophilic as S. alba cells. Protoplasts isolated from suspension cells were co-cultured with lettuce protoplasts in Murashige and Skoog's (MS) basal medium containing 1 ?M 2,4-dichlorophenoxyacetic acid, 0.1 ?M benzyladenine, 3% sucrose and 0.6-0.8 M osmoticum. S. caseolaris protoplasts had a higher inhibitory effect on lettuce protoplast cell divisions than S. alba protoplasts at any lettuce protoplast density, and the effect of S. ovata was intermediate between the two. These results were similar to those obtained from a different in vitro bioassay method for allelopathy, the 'sandwich method' with dried leaves. The inverse relationship between allelopathic activity and salt tolerance in suspension cells of Sonneratia mangroves is discussed. PMID:25062702

Hasegawa, Ai; Oyanagi, Tomoya; Minagawa, Reiko; Fujii, Yoshiharu; Sasamoto, Hamako

2014-11-01

368

Credit BG. View looking southeast (136) at the north facade ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Credit BG. View looking southeast (136) at the north facade of Fire House No. 4 from North Base Road (3rd Street). In addition to cottonwood trees, numerous mulberries (Morus alba) have been planted around the parking lot and grounds - Edwards Air Force Base, North Base, Fire House No. 4, Near Second & A Streets, Boron, Kern County, CA

369

Accumulation and distribution of trivalent chromium and effects on hybrid willow (Salix matsudana Koidz x alba L.) metabolism.  

PubMed

The metabolic response of plants to exogenous supply and bioaccumulation of trivalent chromium (Cr(3+) ) was investigated. Pre-rooted young hybrid willows (Salix matsudana Koidz x alba L.) were exposed to hydroponic solution spiked with CrCl(3) at 24.0 degrees C +/- 1 degrees C for 192 hours. Various physiologic parameters of the plants were monitored to determine toxicity from Cr exposure. The transpiration rate of willows exposed to 2.5 mg Cr/L was 49% higher than that of the untreated control plants, but it was decreased by 17% when exposed to 30.0 mg Cr/L. Significant decrease (> or =20%) of soluble protein in young leaves of willows was detected in the treatment group with > or =7.5 mg Cr/L. The measured chlorophyll contents in leaves of treated plants varied with the dose of Cr, but a linear correlation could not be established. The contents of chlorophyll in leaves of willows exposed to > or =7.5 mg Cr/L were higher than that of the untreated plants but lower at 30.0 mg Cr/L. Superoxide dismutase activity (SOD) in leaves between the treated and untreated willows did not show any significant difference, but activities of both catalase (CAT) and peroxidase (POD) in leaf cells of all treated plants were higher than those in the untreated willows. The correlation between the concentration of Cr and CAT activity in leaf cells was the highest of all toxicity assays (R ( 2 ) = 0.9096), indicating that CAT activity was most sensitive to the change in Cr(3+) doses compared with the other selected parameters. Results from the Cr uptake study showed that significant removal of Cr from hydroponic solution was observed in the presence of hybrid willows without showing detectable phytotoxicity, even at high does of Cr. More than 90% of the applied Cr(3+) was removed from the aqueous solution by willows at concentrations up to 7.5 mg Cr/L. Approximately 70% of the initial Cr was recovered in the plant materials. At the low-Cr(3+) treatment (2.5 mg Cr/L), Cr accumulation by willow materials was the greatest (92%) in roots and the lowest (0.2%) in leaves, whereas the greatest (66%) was in stems and the lowest (0.1%) in leaves of willows exposed to 30.0 mg Cr/L. The correlation between applied Cr(3+) (mg Cr/L) and Cr (mug Cr/g fresh weight [fw]) accumulated in plant materials was significant. The bioaccumulation kinetics of Cr by hybrid willows can be described by a typical saturation curve. Results also indicated that translocation of Cr from roots to shoots was possible. It is to conclude that hybrid willows have great potential as bioremediation technology in the removal of chromium (Cr(3+)) from contaminated effluents and sediments. PMID:17380236

Yu, X-Z; Gu, J-D

2007-05-01

370

Modification of the activity of some C cycle hydrolases in soils afforested with Populus alba L. Preliminary results  

NASA Astrophysics Data System (ADS)

Since 1992 a large part of the agricultural land in Galicia (NW Spain) has disappeared as a result of the EU policy of providing grants and aid for transforming marginal land into forest terrain. In Galicia, this policy (EU Regulation 2080/1992) has mainly been applied to good quality agricultural land rather than to marginal land. As a result, the land has undergone a change in use, so that previously good quality agricultural land is now planted with various species of trees, usually of young age. Despite the large area of land transformed, until now the environmental cost of such changes has not been evaluated. Taking into account that one of the possible environmental effects derived from land transformation is changes in emissions of CO2 (a major greenhouse gas), it is therefore essential to evaluate any possible modifications undergone in such soils, with special attention given to biochemical properties, i.e. the properties that determine edaphic metabolism. With this aim, we are currently investigating the effect of afforestation on diverse biochemical properties, including the activity of hydrolytic enzymes involved in the C, N, P and S cycles, in a large number of afforested soils, planted with different trees and located in different areas throughout Galicia. In each case, an agricultural soil located close to the afforested soil, but under the original land use (usually maize cropped soils or pasture soils), is also collected and analysed, and the results obtained for afforested soils compared with those for the corresponding agricultural soils. Here we report some preliminary results on modifications in the activities of some C cycle hydrolases in six soils now planted with poplars, Populus alba L, but originally cropped with maize. Samples of all soils were collected in autumn, after harvesting and before any other agricultural activities were carried out. In all cases, the upper 10 cm of the soils were collected. The soils were sieved (4 mm) prior to analysis for -glucosidase, invertase and CM-cellulase activity. The main physical and chemical properties of the soils were also determined (total C and N contents, pH in water and in KCl, texture, etc) and the apparent density measured to enable the results to be expressed per unit of weight as well as per unit of volume. The mean values of total C and N in the afforested soils were slightly higher than in the cropped soils, independently of whether the results were expressed relative to weight or volume. The differences were not significant in any of the cases. Afforestation appeared to cause small increases in -glucosidase and invertase activities, but a decrease in CM-cellulase activity. Again the same results were obtained independently of whether the values were expressed per unit of weight or volume. The same was also found when the values were expressed relative to the N content of the soils, but when the values were expressed relative to the total C content, the -glucosidase activity was found to be the same in afforested and cropped soils. The greater availability of plant remains as the result of the change in land use may have favoured increased activity of enzymes that act on the most readily decomposable substrates (-glucosidase and invertase), which in turn would generate an increase in the substrates available for microorganisms, and possibly contribute to the higher respiratory activity observed in these soils (Garca-Campos et al., 2010, EGU General Assembly, Session 13). Acknowledgements. This research was financially supported by the Spanish Ministerio de Ciencia e Innovacin (CGL2008-01992/BTE).

Zorita, Flix; Garca-Campos, Elena; Gil-Sotres, Fernando; Leirs, M? Carmen; Trasar-Cepeda, Carmen

2010-05-01

371

Preliminary results on the effects of afforestation of maize soils with Populus alba L., on carbon metabolism  

NASA Astrophysics Data System (ADS)

Transformation of a natural soil to agricultural land is generally assumed to be accompanied by increased mineralization of the organic matter and increased CO2emissions; in contrast, afforestation of agricultural soil is thought to lead to sequestration of carbon and incorporation of atmospheric CO2 into the organic matter. In other words the type of management and land use determine whether soils act as carbon sinks or sources, so that transformation of agricultural land to forest land is generally considered to be accompanied by an increase in edaphic carbon, although it is not clear whether this effect is always produced or if it depends on the agricultural history of the land being afforested. In light of the recognised importance of forest land in sequestering C, and therefore in regulating climate change, in 1992 the EU established Regulation 2080 to promote the afforestation of marginal agricultural land. This had strong repercussions in regions such as Galicia (NW Spain) as the afforestation was mainly applied to good quality agricultural land rather than to marginal land. Although, as a result, large areas of agricultural land have been afforested in Galicia, the associated effects on edaphic carbon have not been widely investigated. The present study involves analysis of large number of afforested soils, planted with different trees and located in different areas throughout Galicia (NW Spain), with the aim of investigating the effects on carbon metabolism in agricultural soils transformed for forestry use. Here we report the preliminary results concerning the observed effects on carbon metabolism in six soils afforested with poplar, Populus alba L., of age between 4 and 8 years. In addition to the six soils planted with poplars, adjacent agricultural soils (x6) were analyzed. In each case the adjacent soil was the same as the original soil prior to afforestation, and all were maize soils. Samples of the soils were collected in autumn, after harvesting and before any other agricultural activities were carried out. Samples were collected from the upper 10 cm of soil and were analysed for total carbon and nitrogen, basal respiration, microbial biomass C and labile C content (extractable with potassium sulphate); the metabolic coefficient (qCO2), or in other words the quantity of C-CO2evolved per unit of microbial biomass C, was also calculated. The main general properties of the soils were determined, along with the apparent density, to enable the results to be expressed per unit of weight and per unit of volume. The results show that afforestation generally had little effect on the soil properties. Thus, comparison of the mean values obtained for afforested soils with the mean values obtained for agricultural soils revealed that, independently of whether the results were expressed per unit of weight or per unit of volume, the total C and N contents were slightly higher in the afforested soils; the same was also found for basal respiration and qCO2, whereas the microbial biomass C and labile C contents were very similar in both types of soils. The variations were not significant in any case. Furthermore, exactly the same patterns were observed when the respiration, microbial biomass C and labile C values were expressed relative to the total C or N contents of the soils. The scant modification of carbon metabolism may be attributed to the short time since afforestation, as well as to work carried out when the trees were planted. Acknowledgements. This research was financially supported by the Spanish Ministerio de Ciencia e Innovacin (CGL2008-01992/BTE).

Garca-Campos, Elena; Zorita, Flix; Gil-Sotres, Fernando; Leirs, M? Carmen; Trasar-Cepeda, Carmen

2010-05-01

372

Sensitivity of stable isotope ratios of tree-rings of Silver fir (Abies alba Mill.) in Franconia (Central Germany) to climate and environmental changes  

NASA Astrophysics Data System (ADS)

We constructed 1000-year long carbon and oxygen isotope chronologies of Silver fir (Abies alba Mill.) from the temperate region of Franconia (northern Bavaria, Central Germany) with the aim to carry out the climate reconstructions by using of multivariate models. The annual variations of isotope signals in firs were strong influenced by airborne pollutants in the second half of 20th century: the linear responses of 13C; 18O and 2H signals to SO2, O3 and dust concentrations were high significant. Therefore, we used the long meteorological data set, were the disturbed period could be excluded for climate reconstructions. In this case, carbon isotopes correspond most to spring/summer climate conditions as April to August mean temperatures and June/July precipitation amount, oxygen show the strongest correlation to the July relative air humidity and to the April to August mean temperatures. The correlations between tree-ring signals and summer climate are high (p

Boettger, T.; Haupt, M.; Friedrich, M.

2012-04-01

373

The antioxidant status and oxidative stability of muscle from lambs receiving oral administration of Artemisia herba alba and Rosmarinus officinalis essential oils.  

PubMed

The effect of the dietary supplementation to lambs of essential oils (EOs) from rosemary (Rosmarinus officinalis) and artemisia (Artemisia herba alba) on the antioxidant status of muscle and on meat oxidative stability was studied. Eighteen Barbarine lambs were divided into 3 groups and for 95days received oat hay and concentrates. One group (C) was not supplemented, while the other two groups received 400mg/kg of EOs from rosemary (R400) or artemisia (A400). Both EOs possessed antioxidant properties and their oral administration improved the reducing and radical scavenging capacity of the muscle compared to the C treatment (P<0.01). Nevertheless, supplementing EOs did not exert protection against lipid oxidation and did not affect the colour stability in meat over 7days of aerobic storage. PMID:24583334

Aouadi, Dorra; Luciano, Giuseppe; Vasta, Valentina; Nasri, Saida; Brogna, Daniela M R; Abidi, Sourour; Priolo, Alessandro; Salem, Hichem Ben

2014-06-01

374

Simultaneous quantification of sinigrin, sinalbin, and anionic glucosinolate hydrolysis products in Brassica juncea and Sinapis alba seed extracts using ion chromatography.  

PubMed

Although mustards such as Sinapis alba and Brassica juncea contain glucosinolates (sinalbin and sinigrin, respectively) that hydrolyze to form biopesticidal products, routine quality control methods to measure active ingredients in seed and seed meals are lacking. We present a simple and fast ion chromatography method for the simultaneous quantification of sinigrin, sinalbin, and anionic hydrolysis products in mustard seed to assess biological potency. Optimum conditions include isocratic elution with 100 mM NaOH at a flow rate of 0.9 mL/min on a 4 210 mm hydroxide-selective anion-exchange column. All anion analytes including sinigrin, sinalbin, SO4(2-), and SCN(-) yielded recoveries ranging from 83 to 102% and limits of detection ?0.04 mM, with samples displaying little interference from plant matrix components. Sample preparation is minimized and analysis times are shortened to <90 min as compared with previous methods that took days and multiple instruments. PMID:25314611

Popova, Inna E; Morra, Matthew J

2014-11-01

375

The effect of air pollution and other environmental stressors on leaf fluctuating asymmetry and specific leaf area of Salix alba L.  

PubMed

We aimed at evaluating the effect of low-level air pollution on leaf area fluctuating asymmetry (FAA) and specific leaf area (SLA) of Salix alba L., taking into account other environmental factors. Cuttings were grown in standardized conditions in the near vicinity of air quality measuring stations in Belgium. Variability of SLA and FAA between measuring stations explained 83% and 7.26%, respectively, of the total variability. FAA was not influenced by air pollution or environmental factors such as shading, herbivory, air temperature and humidity. SLA was increased by an increase in shadow, while NO(x) and O(3) concentrations had only a marginal influence. The influence of SO(2) concentration was negligible. Although our data analysis suggests a relationship between SLA and NO(x)/O(3) concentration, the absence of a straightforward relationship between FAA and SLA and air pollution still questions the usefulness of these bio-indicators for monitoring air pollution. PMID:21749937

Wuytack, Tatiana; Wuyts, Karen; Van Dongen, Stefan; Baeten, Lander; Kardel, Fatemeh; Verheyen, Kris; Samson, Roeland

2011-10-01

376

Development and validation of a duplex real-time PCR assay for the simultaneous detection of three mustard species (Sinapis alba, Brassica nigra and Brassica juncea) in food.  

PubMed

The paper presents a duplex real-time PCR assay for the simultaneous detection of three potentially allergenic mustard species commonly used in food: white mustard (Sinapis alba), black mustard (Brassica nigra) and brown mustard (Brassica juncea). White mustard is detected in the "green" and black/brown mustard in the "yellow" channel. The duplex real-time PCR assay does not show cross-reactivity with other Brassicaceae species including broccoli, cauliflower, radish and rapeseed. Low cross-reactivities (difference in the Ct value ? 11.91 compared with the positive control) were obtained with cumin, fenugreek, ginger, rye and turmeric. When applying 500 ng DNA per PCR tube, the duplex real-time PCR assay allowed the detection of white, black and brown mustard in brewed model sausages down to a concentration of 5mg/kg in 10 out of 10 replicates. The duplex real-time PCR assay was applied to verify correct labelling of commercial foodstuffs. PMID:24491701

Palle-Reisch, Monika; Cichna-Markl, Margit; Hochegger, Rupert

2014-06-15

377

The parallel expression of metal tolerance in pollen and sporophytes of Silene dioica (L.) Clairv., S. alba (mill.) krause and Mimulus guttatus DC.  

PubMed

The purpose of this paper was to determine if heavy metal tolerance was expressed in pollen and if its expression was correlated with the tolerance of the pollen source. Clones of Silene dioica, tolerant to zinc, closely related but nontolerant S. alba and clones of Mimulus guttatus tolerant and sensitive to copper were grown in the greenhouse in either standard potting soil or nutrient culture. Pollen was collected shortly after dehiscence, hydrated, and tested over a broad range of metal concentrations. The tolerance of the pollen source was determined by comparing root growth in solutions with and without heavy metals. In both Silene species and M. guttatus, the tolerance of the parental clone was expressed in its pollen. Pollen from tolerant individuals was able to germinate and grow at concentrations of metals which markedly inhibited pollen from nontolerants. PMID:24254019

Searcy, K B; Mulcahy, D L

1985-03-01

378

Cloning, molecular characterization and functional analysis of 1-hydroxy-2-methyl-2-(E)-butenyl-4-diphosphate reductase (HDR) gene for diterpenoid tanshinone biosynthesis in Salvia miltiorrhiza Bge. f. alba.  

PubMed

The enzyme 1-hydroxy-2-methyl-2-(E)-butenyl-4-diphosphate reductase (HDR) is a terminal-acting enzyme in the plastid MEP pathway, which produce isoprenoid precursors. The full-length cDNA of HDR, designated SmHDR1 (Genbank Accession No. JX516088), was isolated for the first time from Salvia miltiorrhiza Bge. f. alba. SmHDR1 contains a 1389-bp open reading frame encoding 463 amino acids. The deduced SmHDR1 protein, which shows high identity to HDRs of other plant species, is predicted to possess a chloroplast transit peptide at the N-terminus and four conserved cysteine residues. Transcription pattern analysis revealed that SmHDR1 has high levels of transcription in leaves and low levels of transcription in roots and stems. The expression of SmHDR1 was induced by 0.1mM methyl-jasmonate (MeJA) and salicylic acid (SA), but not by 0.1mM abscisic acid (ABA), in the hairy roots of S.miltiorrhiza Bge. f. alba. Complementation of SmHDR1 in the Escherichia coli HDR mutant MG1655 ara < > ispH demonstrated the function of this enzyme. A functional color assay in E.coli showed that SmHDR1 accelerates the biosynthesis of ?-carotene, indicating that SmHDR1 encodes a functional protein. Overexpression of SmHDR1 enhanced the production of tanshinones in cultured hairy roots of S.miltiorrhiza Bge. f. alba. These results indicate that SmHDR1 is a novel and important enzyme involved in the biosynthesis of diterpenoid tanshinones in S.miltiorrhiza Bge. f. alba. PMID:23770591

Hao, Gangping; Shi, Renjiu; Tao, Ru; Fang, Qian; Jiang, Xingyu; Ji, Haiwei; Feng, Lei; Huang, Luqi

2013-09-01

379

Action Spectra for the Inhibition of Hypocotyl Growth by Continuous Irradiation in Light and Dark-Grown Sinapis alba L. Seedlings 1  

PubMed Central

Action spectra for the inhibition by continuous (24-hour) irradiation of hypocotyl growth in 54-hour-old Sinapis alba L. seedlings were measured using seedlings which had had four different pretreatments. These seedlings were either (a) dark-grown with a high total phytochrome level, (b) dark-grown with a low total phytochrome level, (c) light-grown with chlorophyll, or (d) light-grown with no chlorophyll [treated with 4-chloro-5-(methylamino)-2-(?,?,?-trifluoro-m-tolyl)-3(2H) -pyridazinone (San 9789)]. The resulting action spectra show that the blue, red, and far-red (716 nm) wavebands are most inhibitory for dark-grown plants with high phytochrome content, whereas hypocotyl growth in dark-grown plants with a low phytochrome content are only slightly inhibited by blue and far-red radiation. In light-grown plants, the effectiveness of blue and far-red light almost disappears. The position of red light effectiveness in chlorophyll-containing plants is shifted to lower wavelengths compared with those containing no chlorophyll. PMID:16661489

Beggs, Christopher J.; Holmes, M. Geoffrey; Jabben, Merten; Schfer, Eberhard

1980-01-01

380

Novel buccal adhesive tablets using Aloe vera L and Sinapis alba--a promising option for improved bioavailability of diltiazem hydrochloride.  

PubMed

In the current investigation, white mustard mucilage from whole seeds of Sinapis alba was evaluated for its physical properties and compared with the other mucoadhesive polymers such as hydroxy propyl methylcellulose 5Cps and Carbopol 934P. Further, methanol precipitable solids from whole leaves of Aloe Vera L were used as permeation enhancer. To achieve improved bioavailability of diltiazem, novel buccal adhesive tablets (NBATs) in cup and core fashion designed to achieve unidirectional release towards mucosa were prepared in a three-stage process using specially fabricated punches. The adhesive cups were studied for its shear, tensile, and peel strengths by specially designed apparatus using excised ruminant and porcine buccal mucosa as model substrates. Ex vivo permeation studies in a Franz diffusion cell were conducted through porcine buccal mucosa. Fourier transform infrared spectroscopy studies and differential scanning calorimetry thermographs showed no remarkable interactions. Histopathological studies showed no remarkable damage of buccal mucosa by the NBATs. In vivo studies were conducted on anaesthetized male New Zealand albino rabbits, estimated by reversed-phase high-performance liquid chromatography, and the pharmacokinetics were compared with the oral and intravenous bolus injection. NBATs exhibited a Cmax 74.6 ng/mL, Tmax 3.5 h, t(1/2) 4.36 h. The NBATs prevented salivary scavenging effect and exhibited 82.1% bioavailability. PMID:18540536

Sudhakar, Yajaman; Bandyopadhyay, A K

2008-01-01

381

Transposable Element Insertion and Epigenetic Modification Cause the Multiallelic Variation in the Expression of FAE1 in Sinapis alba[W][OPEN  

PubMed Central

Naturally occurring heritable variation provides a fundamental resource to reveal the genetic and molecular bases of traits in forward genetic studies. Here, we report the molecular basis of the differences in the four alleles E1, E2, E3, and e of the FATTY ACID ELONGATION1 (FAE1) gene controlling high, medium, low, and zero erucic content in yellow mustard (Sinapis alba). E1 represents a fully functional allele with a coding DNA sequence (CDS) of 1521 bp and a promoter adjacent to the CDS. The null allele e resulted from an insertional disruption in the CDS by Sal-PIF, a 3100-bp PIF/Harbinger-like DNA transposon, whereas E2 and E3 originated from the insertion of Sal-T1, a 4863-bp Copia-like retrotransposon, in the 5? untranslated region. E3 was identical to E2 but showed cytosine methylation in the promoter region and was thus an epiallele having a further reduction in expression. The coding regions of E2 and E3 also contained five single-nucleotide polymorphisms (SNPs) not present in E1, but expression studies in Saccharomyces cerevisiae indicated that these SNPs did not affect enzyme functionality. These results demonstrate a comprehensive molecular framework for the interplay of transposon insertion, SNP/indel mutation, and epigenetic modification influencing the broad range of natural genetic variation in plants. PMID:24934174

Zeng, Fangqin; Cheng, Bifang

2014-01-01

382

Metabolite changes in conifer buds and needles during forced bud break in Norway spruce (Picea abies) and European silver fir (Abies alba)  

PubMed Central

Environmental changes such as early spring and warm spells induce bud burst and photosynthetic processes in cold-acclimated coniferous trees and consequently, cellular metabolism in overwintering needles and buds. The purpose of the study was to examine metabolism in conifers under forced deacclimation (artificially induced spring) by exposing shoots of Picea abies (boreal species) and Abies alba (temperate species) to a greenhouse environment (22C, 16/8 h D/N cycle) over a 9 weeks period. Each week, we scored bud opening and collected samples for GC/MSbased metabolite profiling. We detected a total of 169 assigned metabolites and 80 identified metabolites, comprising compounds such as mono- and disaccharides, Krebs cycle acids, amino acids, polyols, phenolics, and phosphorylated structures. Untargeted multivariate statistical analysis based on PCA and cluster analysis segregated samples by species, tissue type, and stage of tissue deacclimations. Similar patterns of metabolic regulation in both species were observed in buds (amino acids, Krebs cycle acids) and needles (hexoses, pentoses, and Krebs cycle acids). Based on correlation of bud opening score with compound levels, distinct metabolites could be associated with bud and shoot development, including amino acids, sugars, and acids with known osmolyte function, and secondary metabolites. This study has shed light on how elevated temperature affects metabolism in buds and needles of conifer species during the deacclimation phase, and contributes to the discussion about how phenological characters in conifers may respond to future global warming. PMID:25566281

Dhuli, Priyanka; Rohloff, Jens; Strimbeck, G. Richard

2014-01-01

383

Botanical Extracts from Rosehip (Rosa canina), Willow Bark (Salix alba), and Nettle Leaf (Urtica dioica) Suppress IL-1?-Induced NF-?B Activation in Canine Articular Chondrocytes.  

PubMed

The aim of this study was to characterize the anti-inflammatory mode of action of botanical extracts from rosehip (Rosa canina), willow bark (Salix alba), and nettle leaf (Urtica dioica) in an in vitro model of primary canine articular chondrocytes. Methods. The biological effects of the botanical extracts were studied in chondrocytes treated with IL-1? for up to 72?h. Expression of collagen type II, cartilage-specific proteoglycan (CSPG), ?1-integrin, SOX-9, COX-2, and MMP-9 and MMP-13 was examined by western blotting. Results. The botanical extracts suppressed IL-1?-induced NF-?B activation by inhibition of I?B? phosphorylation, I?B? degradation, p65 phosphorylation, and p65 nuclear translocation. These events correlated with downregulation of NF-?B targets including COX-2 and MMPs. The extracts also reversed the IL-1?-induced downregulation of collagen type II, CSPG, ?1-integrin, and cartilage-specific transcription factor SOX-9 protein expression. In high-density cultures botanical extracts stimulated new cartilage formation even in the presence of IL-1?. Conclusions. Botanical extracts exerted anti-inflammatory and anabolic effects on chondrocytes. The observed reduction of IL-1?-induced NF-?B activation suggests that further studies are warranted to demonstrate the effectiveness of plant extracts in the treatment of OA and other conditions in which NF-?B plays pathophysiological roles. PMID:22474508

Shakibaei, Mehdi; Allaway, David; Nebrich, Simone; Mobasheri, Ali

2012-01-01

384

Social Calls Produced within and near the Roost in Two Species of Tent-Making Bats, Dermanura watsoni and Ectophylla alba  

PubMed Central

Social animals regularly face the problem of relocating conspecifics when separated. Communication is one of the most important mechanisms facilitating group formation and cohesion. Known as contact calls, signals exchanged between conspecifics that permit group maintenance are widespread across many taxa. Foliage-roosting bats are an excellent model system for studying the evolution of contact calling, as there are opportunities to compare closely related species that exhibit major differences in ecology and behavior. Further, foliage-roosting bats rely on relatively ephemeral roosts, which leads to major challenges in maintaining group cohesion. Here, we report findings on the communication signals produced by two tent-making bats, Dermanura watsoni and Ectophylla alba. We found that both species produced calls in the early morning near the roost that were associated with roostmate recruitment. Calling often ended once other bats arrived at the tent, suggesting that calls may be involved in roostmate recruitment and group formation. The structure and function of these calls are described and future research directions are discussed. PMID:23637893

Gillam, Erin H.; Chaverri, Gloriana; Montero, Karina; Sagot, Maria

2013-01-01

385

Effects of Atmospheric CO2 Enrichment on the Growth and Mineral Nutrition of Quercus alba Seedlings in Nutrient-Poor Soil 1  

PubMed Central

One-year-old dormant white oak (Quercus alba L.) seedlings were planted in a nutrient-deficient forest soil and grown for 40 weeks in growth chambers at ambient (362 microliters per liter) or elevated (690 microliters per liter) levels of CO2. Although all of the seedlings became severely N deficient, CO2 enrichment enhanced growth by 85%, with the greatest enhancement in root systems. The growth enhancement did not increase the total water use per plant, so water-use efficiency was significantly greater in elevated CO2. Total uptake of N, S, and B was not affected by CO2, therefore, tissue concentrations of these nutrients were significantly lower in elevated CO2. An increase in nutrient-use efficiency with respect to N was apparent in that a greater proportion of the limited N pool in the CO2-enriched plants was in fine roots and leaves. The uptake of other nutrients increased with CO2 concentration, and P and K uptake increased in proportion to growth. Increased uptake of P by plants in elevated CO2 may have been a result of greater proliferation of fine roots and associated mycorrhizae and rhizosphere bacteria stimulating P mineralization. The results demonstrate that a growth response to CO2 enrichment is possible in nutrient-limited systems, and that the mechanisms of response may include either increased nutrient supply or decreased physiological demand. PMID:16665028

Norby, Richard J.; O'Neill, Elizabeth G.; Luxmoore, R. J.

1986-01-01

386

Research Article Botanical Extracts from Rosehip (Rosa canina), Willow Bark (Salix alba), and Nettle Leaf (Urtica dioica) Suppress IL-1?-Induced NF-?B Activation in  

E-print Network

Copyright 2012 Mehdi Shakibaei et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The aim of this study was to characterize the anti-inflammatory mode of action of botanical extracts from rosehip (Rosa canina), willow bark (Salix alba), and nettle leaf (Urtica dioica)inanin vitro model of primary canine articular chondrocytes. Methods. The biological effects of the botanical extracts were studied in chondrocytes treated with IL-1? forupto72h.Expressionofcollagen type II, cartilage-specific proteoglycan (CSPG), ?1-integrin, SOX-9, COX-2, and MMP-9 and MMP-13 was examined by western blotting. Results. The botanical extracts suppressed IL-1?-induced NF-?B activation by inhibition of I?B? phosphorylation, I?B? degradation, p65 phosphorylation, and p65 nuclear translocation. These events correlated with downregulation of NF-?B targets including COX-2 and MMPs. The extracts also reversed the IL-1?-induced downregulation of collagen type II, CSPG, ?1-integrin, and cartilage-specific transcription factor SOX-9 protein expression. In high-density cultures botanical extracts

Canine Articular Chondrocytes; Mehdi Shakibaei; David Allaway; Simone Nebrich; Ali Mobasheri

387

Benthic primary production, respiration and remineralisation: in situ measurements in the soft-bottom Abra alba community of the western English Channel (North Brittany)  

NASA Astrophysics Data System (ADS)

In situ measurements of ammonium and carbon dioxide fluxes were performed using benthic chambers at the end of spring and the end of summer in two soft-bottom Abra alba communities of the western English Channel (North Brittany): the muddy sand community (5 m, about 10% of surface irradiance) and the fine-sand community (19 m, about 1% of surface irradiance). High rates of ammonium regeneration were measured in the two communities at the end of summer (296.0340.07 and 201.762.74 ?molN m -2 h -1, respectively) as well as high respiration rates (2.600.94 and 2.230.59 mmolC m -2 h -1, respectively). Significant benthic gross primary production (up to 6.11 mmolC m -2 h -1) was measured in the muddy sand community but no benthic primary production was measured in the fine-sand community. It suggests that microphytobenthic production values used in simulations previously published for these two communities were overestimated while values of community respiration were underestimated. The study confirms that this benthic system is heterotrophic and strengthens the idea that an important pelagic-benthic coupling is required for the functioning in such coastal ecosystems.

Mign, Aline; Davoult, Dominique; Bourrand, Jean-Jacques; Boucher, Guy

2005-04-01

388

RAPD of controlled crosses and clones from the field suggests that hybrids are rare in the Salix alba-Salix fragilis complex.  

PubMed

The polyploid Salix alba-Salix fragilis hybrid complex is rather difficult to study when using only morphological characters. Most of the features have a low diagnostic value for unambiguously identifying the hybrids, introgression patterns and population structures, though morphological traits have proved to be useful in making a hybrid index. Morphology and molecular variation from RAPDs were investigated in several case studies on willows from Belgium. A thorough screening of full-sib progenies of interspecific controlled crosses was made to select homologous amplification products. The selected amplified products proved to be useful in a principal coordinate analysis for the estimation of variability of hybrid progenies. On the basis of genetic similarities and ordination analysis, a method for the identification of clones in the field was established using presumed pure species and presumed introgressants. The chosen reference clones were checked against additional European samples of putative pure species to ensure the reliability of the method beyond a regional scale. The RAPDs suggested that both species have kept their gene pools well separated and that hybridization actually does not seem to be a dominating process. The observation that molecular markers do not always follow the morphological traits or allozyme data is discussed. PMID:10849080

Triest, L; De Greef, B; De Bondt, R; Van Slycken, J

2000-05-01

389

Changes in ATP, glucose-6-phosphate and NAD(P)H cellular levels during the proliferation and maturation phases of Abies alba Mill. embryogenic cultures.  

PubMed

The aim of the present study was to evaluate the adenosine triphospate (ATP), glucose-6-phosphate (glu-6P) and reduced form of nicotinamide adenine dinucleotide phosphate (NAD(P)H) cellular levels during the proliferation and maturation phases of Abies alba Mill. somatic embryos. For a better understanding of the dynamics of these parameters during the proliferation cycle, four embryonic cell lines were tested. During the maturation period, three independent experiments were conducted, focused on the effects of PEG-4000 (5 or 10% (w/v)) and abscisic acid (16, 32 or 64 ?M) applied together (Experiments A and B) or with addition of gibberellic acid (Experiment C) on the dynamics of bio-energetic molecules and on the mean number of cotyledonary somatic embryos. Our results demonstrated that the cellular levels of bio-energetic molecules strongly depended on the composition of maturation media. Generally, the higher the number of cotyledonary embryos produced, the higher the level of ATP observed after a 2-week maturation period. The cellular level of ATP, glu-6P and NAD(P)H increased, particularly after the transition from the proliferation to the maturation phase when the differentiation and growth of somatic embryos occurred. PMID:24200583

Krajnkov, Jana; Bertolini, Alberto; Zoratti, Laura; Gmry, Dusan; Hggman, Hely; Vianello, Angelo

2013-10-01

390

Determination of Fe, Hg, Mn, and Pb in three-rings of poplar (Populus alba L.) by U-shaped DC arc  

NASA Astrophysics Data System (ADS)

The U-shaped DC arc with aerosol supply was applied for the determination of Fe, Hg, Mn, and Pb in poplar (Populus alba L.) tree-rings. By optimization of the operating parameters and by selection of the most appropriate signal integration time (20 s for Fe, Mn, and Pb and 30 s for Hg), the obtained limits of detection for Fe, Hg, Mn, and Pb are 5.8, 2.6, 1.6, and 2.0 ng/ml, respectively. The detection limits achieved by this method for Fe, Hg, Mn, and Pb are comparable with the detection limits obtained for these elements by such methods as inductively coupled plasma-atomic emission spectrometry (ICP-AES), direct coupled plasmatomic emission spectrometry (DCP-AES), and microwave-induced plasma-atomic emission spectrometry (MIP-AES). We used the tree-rings of poplar from two different locations. The first one is in the area close to the power plant Nikola Tesla TENT A, Obrenovac, while the other one is in the urban area of Novi Sad. In almost all cases, samples from the location at Obrenovac registered elevated average concentrations of Fe, Hg, Mn, and Pb in the tree-rings of poplar.

Markovi?, D. M.; Novovi?, I.; Viloti?, D.; Ignjatovi?, Lj.

2007-09-01

391

Evaluation of agricultural reuse practices and relevant guidelines for the alba rancho WWTP (primary and secondary facultative ponds) in Cochabamba, Bolivia.  

PubMed

Many cities in developing countries are experiencing high population growth, which is generating chaotic and unplanned development, reducing land areas available for agriculture, and polluting surface and groundwater. Consequently, the reuse of untreated or partially treated wastewater for agricultural irrigation is increasing in arid and semi-arid regions in developing countries. Cochabamba city in Bolivia also has a high population growth. The climatic characteristics and the lack of clean water sources in this city are forcing the agriculture sector to use treated and untreated wastewater for irrigation. We investigated the effluent quality of the Alba Rancho Wastewater Treatment Plant (WWTP) in Cochabamba, Bolivia, and the existing effluent reuse practices for irrigation of fodder crops in the surrounding agricultural land (La Mayca area). The plant uses primary and secondary facultative ponds, and does not achieve the required effluent quality (according to Bolivian environmental law) for effluent BOD, COD, TDS and faecal coliforms. This paper also includes a brief comparison of guidelines for wastewater reuse in agriculture from several developing and developed countries, comparing the parameters measured as pollution indicators. It appears that for developed countries, the main concern is the health risk that reuse can cause to the farmers and consumers. For developing countries on the other hand, pollution reduction is currently the major aim in their guidelines and standards. PMID:17305172

Zabalaga, J; Amy, G; von Mnch, E

2007-01-01

392

Chemical composition and vasorelaxant effect induced by the essential oil of Lippia alba (Mill.) N.E. Brown. (Verbenaceae) in rat mesenteric artery  

PubMed Central

Objectives: To investigate the chemical composition and vasorelaxant effect of the essential oil of Lippia alba (EOLA) in rat mesenteric artery. Material and Methods: Chemical composition of EOLA was investigated by gas chromatography-mass spectrometry (GC/MS). Vasorelaxant effect was evaluated in vitro in rat superior mesenteric artery rings. Results: GC/MS analysis revealed the presence of 19 compounds, with geranial (48.58%) and neral (35.42%) being the major constituents. In intact rings precontracted with phenylephrine (Phe: 1 ?M), EOLA (100-1000 ?g/mL) induced relaxation, where the maximal effect (Emax) was 110.8 10.8%. This effect was not modified after endothelium removal (Emax = 134.8 16.5%), after tetraethylammonium (TEA) (Emax = 117.2 4.96%), or in rings precontracted with KCl (80 mM) (Emax = 112.6 6.70%). In addition, EOLA was able to inhibit the contraction caused by CaCl2 and produced a small but significant (P<0.05) additional effect (from 70.5 3.4 to 105.3 13.5%, n = 5) on the maximal relaxation of nifedipine (NIF: 10 ?M). Conclusions: The results demonstrated that EOLA induces endothelium-independent vasorelaxation, which appears to be caused, at least in part, by blocking Ca2+ influx through voltage-operated Ca2+ channels. PMID:22144776

Maynard, Luana G.; Santos, Ktia C.; Cunha, Patrcia S.; Barreto, Andr S.; Peixoto, Magna G.; Arrigoni-Blank, Ftima; Blank, Arie F.; Alves, Pricles B.; Bonjardin, Leonardo R.; Santos, Mrcio R.V.

2011-01-01

393

Double-Blind, Placebo-Controlled, Randomized Study Comparing 0.0003% Calcitriol with 0.1% Tacrolimus Ointments for the Treatment of Endemic Pityriasis Alba  

PubMed Central

Background. Pityriasis alba (PA) is a frequent cause of consultation in tropical areas due to its chronic course, frequent relapses, and notorious hypopigmented lesions in pediatric dark skin populations. Currently, no treatment is widely accepted. Objective. To assess the efficacy of 0.0003% calcitriol and 0.1% tacrolimus ointments compared with placebo in the treatment of endemic PA. Methods. Twenty-eight children aged 317 years with 56 symmetrical lesions and phototype IV-V, were randomly assigned to receive the treatments on target lesions on the face. Improvement was evaluated at baseline and 8 weeks later clinically and by digital quantification of the affected area, colorimetry, and transepidermal water loss (TEWL). Results. Tacrolimus and calcitriol ointments induced a mean improvement of 68%, compared to 44% of placebo. We found an elevated TEWL in PA lesions. In the treated plaques, the reduction of the affected area was associated with improvement of pigmentation and TEWL. Conclusions. Calcitriol and tacrolimus induced similar repigmentation in endemic PA lesions. Melanogenic, anti-inflammatory, and barrier defect restoration properties of these drugs may explain these findings. PMID:22577371

Moreno-Cruz, Berenice; Torres-lvarez, Bertha; Hernndez-Blanco, Diana; Castanedo-Cazares, Juan Pablo

2012-01-01

394

Response to drought and salt stress in leaves of poplar (Populus albaנPopulus glandulosa): Expression profiling by oligonucleotide microarray analysis.  

PubMed

Drought and salt stresses are major environmental constraints on forest productivity. To identify genes responsible for stress tolerance, we conducted a genome-wide analysis in poplar (Populus albaנPopulus glandulosa) leaves exposed to drought and salt (NaCl) stresses. We investigated gene expression at the mRNA level using oligonucleotide microarrays containing 44,718 genes from Populus trichocarpa. A total of 1604 and 1042 genes were up-regulated (?2-fold; P value<0.05) by drought and salt stresses, respectively, and 765 genes were up-regulated by both stresses. In addition, 2742 and 1685 genes were down-regulated by drought and salt stresses, respectively, and 1564 genes were down-regulated by both stresses. The large number of genes regulated by both stresses suggests that crosstalk occurs between the drought and salt stress responses. Most up-regulated genes were involved in functions such as subcellular localization, signal transduction, metabolism, and transcription. Among the up-regulated genes, we identified 47 signaling proteins, 65 transcription factors, and 43 abiotic stress-related genes. Several genes were modulated by only one of the two stresses. About 25% of the genes significantly regulated by these stresses are of unknown function, suggesting that poplar may provide an opportunity to discover novel stress-related genes. PMID:25285889

Yoon, Seo-Kyung; Park, Eung-Jun; Choi, Young-Im; Bae, Eun-Kyung; Kim, Joon-Hyeok; Park, So-Young; Kang, Kyu-Suk; Lee, Hyoshin

2014-11-01

395

Ecophysiological competence of Populus alba L., Fraxinus angustifolia Vahl., and Crataegus monogyna Jacq. used in plantations for the recovery of riparian vegetation.  

PubMed

In many semi-arid environments of Mediterranean ecosystems, white poplar (Populus alba L.) is the dominant riparian tree and has been used to recover degraded areas, together with other native species, such as ash (Fraxinus angustifolia Vahl.) and hawthorn (Crataegus monogyna Jacq.). We addressed three main objectives: (1) to gain an improved understanding of some specific relationships between environmental parameters and leaf-level physiological factors in these riparian forest species, (2) to compare the leaf-level physiology of these riparian species to each other, and (3) to compare leaf-level responses within native riparian plots to adjacent restoration plots, in order to evaluate the competence of the plants used for the recovery of those degraded areas. We found significant differences in physiological performance between mature and young white poplars in the natural stand and among planted species. The net assimilation and transpiration rates, diameter, and height of white poplar plants were superior to those of ash and hawthorn. Ash and hawthorn showed higher water use efficiency than white poplar. White poplar also showed higher levels of stomatal conductance, behaving as a fast-growing, water-consuming species with a more active gas exchange and ecophysiological competence than the other species used for restoration purposes. In the restoration zones, the planted white poplars had higher rates of net assimilation and water use efficiency than the mature trees in the natural stand. We propose the use of white poplar for the rapid restoration of riparian vegetation in semi-arid Mediterranean environments. Ash and hawthorn can also play a role as accompanying species for the purpose of biodiversity. PMID:17849159

Manzanera, Jose A; Martnez-Chacn, Maria F

2007-12-01

396

Ecophysiological Competence of Populus alba L., Fraxinus angustifolia Vahl., and Crataegus monogyna Jacq. Used in Plantations for the Recovery of Riparian Vegetation  

NASA Astrophysics Data System (ADS)

In many semi-arid environments of Mediterranean ecosystems, white poplar ( Populus alba L.) is the dominant riparian tree and has been used to recover degraded areas, together with other native species, such as ash ( Fraxinus angustifolia Vahl.) and hawthorn ( Crataegus monogyna Jacq.). We addressed three main objectives: (1) to gain an improved understanding of some specific relationships between environmental parameters and leaf-level physiological factors in these riparian forest species, (2) to compare the leaf-level physiology of these riparian species to each other, and (3) to compare leaf-level responses within native riparian plots to adjacent restoration plots, in order to evaluate the competence of the plants used for the recovery of those degraded areas. We found significant differences in physiological performance between mature and young white poplars in the natural stand and among planted species. The net assimilation and transpiration rates, diameter, and height of white poplar plants were superior to those of ash and hawthorn. Ash and hawthorn showed higher water use efficiency than white poplar. White poplar also showed higher levels of stomatal conductance, behaving as a fast-growing, water-consuming species with a more active gas exchange and ecophysiological competence than the other species used for restoration purposes. In the restoration zones, the planted white poplars had higher rates of net assimilation and water use efficiency than the mature trees in the natural stand. We propose the use of white poplar for the rapid restoration of riparian vegetation in semi-arid Mediterranean environments. Ash and hawthorn can also play a role as accompanying species for the purpose of biodiversity.

Manzanera, Jose A.; Martnez-Chacn, Maria F.

2007-12-01

397

Ozone fumigation results in accelerated growth and persistent changes in the antioxidant system of Brassica oleracea L. var. capitata f. alba.  

PubMed

The growth response and antioxidant capacity of Brassica oleracea var. capitata f. alba plants treated with 70ppb of ozone was examined. Four week old cabbage seedlings were fumigated with O3 for 3 days before being transplanted into the growing field. The effect of O3 treatment was determined directly after fumigation and over the course of field cultivation. Plants subjected to O3 treatment had an increased diameter of rosettes and number of leaves after 3 and 7 weeks in agriculture, respectively. In addition, the vast majority of fumigated plants reached marketable quality faster than control plants, indicating a positive role of episodes of increased O3 concentrations during vegetation on growth and yielding. Our analysis revealed that by fumigating juvenile white cabbage plants with moderate doses of O3 the activity of catalases (CAT) and peroxidases was elevated. The activity of the examined enzymes was not affected directly after fumigation, but it increased after several weeks in the experimental field. Increased CAT activity was accompanied by changes in 2 out of the 3 CAT genes CAT1 and CAT2, where CAT2 seemed to be responsible for the induced CAT activity. The biosynthesis of low-molecular stress protectants - tocopherols and the glucosinolate (GLS) sinigrin was transiently affected by ozone. ?-Tocopherol (?-toc) content significantly increased directly after fumigation, but after 3 weeks of vegetation in the field its concentration reached values similar to control. The biosynthesis of ?-tocopherol (?-toc) and sinigrin seemed to be upregulated in fumigated plants. However, the response was delayed; no differences were registered directly after treatment, but 3 weeks after transplanting the concentration of sinigrin and ?-toc was elevated. PMID:23773692

Rozp?dek, Piotr; ?lesak, Ireneusz; Cebula, Stanis?aw; Waligrski, Piotr; Dziurka, Micha?; Skoczowski, Andrzej; Miszalski, Zbigniew

2013-09-15

398

Construction of a genetic linkage map and QTL analysis of erucic acid content and glucosinolate components in yellow mustard (Sinapis alba L.)  

PubMed Central

Background Yellow mustard (Sinapis alba L.) is an important condiment crop for the spice trade in the world. It has lagged behind oilseed Brassica species in molecular marker development and application. Intron length polymorphism (ILP) markers are highly polymorphic, co-dominant and cost-effective. The cross-species applicability of ILP markers from Brassica species and Arabidopsis makes them possible to be used for genetic linkage mapping and further QTL analysis of agronomic traits in yellow mustard. Results A total of 250 ILP and 14 SSR markers were mapped on 12 linkage groups and designated as Sal01-12 in yellow mustard. The constructed map covered a total genetic length of 890.4cM with an average marker interval of 3.3cM. The QTL for erucic content co-localized with the fatty acid elongase 1 (FAE1) gene on Sal03. The self-(in)compatibility gene was assigned to Sal08. The 4-hydroxybenzyl, 3-indolylmethyl and 4-hydroxy-3-indolylmethyl glucosinolate contents were each controlled by one major QTL, all of which were located on Sal02. Two QTLs, accounting for the respective 20.4% and 19.2% of the total variation of 2-hydroxy-3-butenyl glucosinolate content, were identified and mapped to Sal02 and Sal11. Comparative synteny analysis revealed that yellow mustard was phylogenetically related to Arabidopsis thaliana and had undergone extensive chromosomal rearrangements during speciation. Conclusion The linkage map based on ILP and SSR markers was constructed and used for QTL analysis of seed quality traits in yellow mustard. The markers tightly linked with the genes for different glucosinolate components will be used for marker-assisted selection and map-based cloning. The ILP markers and linkage map provide useful molecular tools for yellow mustard breeding. PMID:24066707

2013-01-01

399

Detection and molecular characterization of two FAD3 genes controlling linolenic acid content and development of allele-specific markers in yellow mustard (Sinapis alba).  

PubMed

Development of yellow mustard (Sinapis alba L.) with superior quality traits (low erucic and linolenic acid contents, and low glucosinolate content) can make this species as a potential oilseed crop. We have recently isolated three inbred lines Y1127, Y514 and Y1035 with low (3.8%), medium (12.3%) and high (20.8%) linolenic acid (C18?3) content, respectively, in this species. Inheritance studies detected two fatty acid desaturase 3 (FAD3) gene loci controlling the variation of C18?3 content. QTL mapping revealed that the two FAD3 gene loci responsible for 73.0% and 23.4% of the total variation and were located on the linkage groups Sal02 and Sal10, respectively. The FAD3 gene on Sal02 was referred to as SalFAD3.LA1 and that on Sal10 as SalFAD3.LA2. The dominant and recessive alleles were designated as LA1 and la1 for SalFAD3.LA1, and LA2 and la2 for SalFAD3.LA2. Cloning and alignment of the coding and genomic DNA sequences revealed that the SalFAD3.LA1 and SalFAD3.LA2 genes each contained 8 exons and 7 introns. LA1 had a coding DNA sequence (CDS) of 1143 bp encoding a polypeptide of 380 amino acids, whereas la1 was a loss-of-function allele due to an insertion of 584 bp in exon 3. Both LA2 and la2 had a CDS of 1152 bp encoding a polypeptide of 383 amino acids. Allele-specific markers for LA1, la1, LA2 and la2 co-segregated with the C18?3 content in the F2 populations and will be useful for improving fatty acid composition through marker assisted selection in yellow mustard breeding. PMID:24823372

Tian, Entang; Zeng, Fangqin; MacKay, Kimberly; Roslinsky, Vicky; Cheng, Bifang

2014-01-01

400

Detection and Molecular Characterization of Two FAD3 Genes Controlling Linolenic Acid Content and Development of Allele-Specific Markers in Yellow Mustard (Sinapis alba)  

PubMed Central

Development of yellow mustard (Sinapis alba L.) with superior quality traits (low erucic and linolenic acid contents, and low glucosinolate content) can make this species as a potential oilseed crop. We have recently isolated three inbred lines Y1127, Y514 and Y1035 with low (3.8%), medium (12.3%) and high (20.8%) linolenic acid (C18?3) content, respectively, in this species. Inheritance studies detected two fatty acid desaturase 3 (FAD3) gene loci controlling the variation of C18?3 content. QTL mapping revealed that the two FAD3 gene loci responsible for 73.0% and 23.4% of the total variation and were located on the linkage groups Sal02 and Sal10, respectively. The FAD3 gene on Sal02 was referred to as SalFAD3.LA1 and that on Sal10 as SalFAD3.LA2. The dominant and recessive alleles were designated as LA1 and la1 for SalFAD3.LA1, and LA2 and la2 for SalFAD3.LA2. Cloning and alignment of the coding and genomic DNA sequences revealed that the SalFAD3.LA1 and SalFAD3.LA2 genes each contained 8 exons and 7 introns. LA1 had a coding DNA sequence (CDS) of 1143 bp encoding a polypeptide of 380 amino acids, whereas la1 was a loss-of-function allele due to an insertion of 584 bp in exon 3. Both LA2 and la2 had a CDS of 1152 bp encoding a polypeptide of 383 amino acids. Allele-specific markers for LA1, la1, LA2 and la2 co-segregated with the C18?3 content in the F2 populations and will be useful for improving fatty acid composition through marker assisted selection in yellow mustard breeding. PMID:24823372

Tian, Entang; Zeng, Fangqin; MacKay, Kimberly; Roslinsky, Vicky; Cheng, Bifang

2014-01-01

401

Citral and carvone chemotypes from the essential oils of Colombian Lippia alba (Mill.) N.E. Brown: composition, cytotoxicity and antifungal activity.  

PubMed

Two essential oils of Lippia alba (Mill.) N.E. Brown (Verbenacea), the carvone and citral chemotypes and 15 of their compounds were evaluated to determine cytotoxicity and antifungal activity. Cytotoxicity assays for both the citral and carvone chemotypes were carried out with tetrazolium-dye, which showed a dose-dependent cytotoxic effect against HeLa cells. Interestingly, this effect on the evaluated cells (HeLa and the non-tumoural cell line, Vero) was lower than that of commercial citral alone. Commercial citral showed the highest cytotoxic activity on HeLa cells. The antifungal activity was evaluated against Candida parapsilosis, Candida krusei, Aspergillus flavus and Aspergillus fumigatus strains following the standard protocols, Antifungal Susceptibility Testing Subcommittee of the European Committee on Antibiotic Susceptibility Testing and CLSI M38-A. Results demonstrated that the most active essential oil was the citral chemotype, with geometric means-minimal inhibitory concentration (GM-MIC) values of 78.7 and 270.8 microg/mL for A. fumigatus and C. krusei, respectively. Commercial citral showed an antifungal activity similar to that of the citral chemotype (GM-MIC values of 62.5 microg/mL for A. fumigatus and 39.7 microg/mL for C. krusei). Although the citronellal and geraniol were found in lower concentrations in the citral chemotype, they had significant antifungal activity, with GM-MIC values of 49.6 microg/mL for C. krusei and 176.8 microg/mL for A. fumigatus. PMID:19876560

Mesa-Arango, Ana Cecilia; Montiel-Ramos, Jehidys; Zapata, Bibiana; Durn, Camilo; Betancur-Galvis, Liliana; Stashenko, Elena

2009-09-01

402

Isolation and characterisation of phosphate solubilising microorganisms from the cold desert habitat of Salix alba Linn. in trans Himalayan region of Himachal Pradesh.  

PubMed

Phosphate solubilising microorganisms (PSM) (bacteria and fungi) associated with Salix alba Linn. from Lahaul and Spiti valleys of Himachal Pradesh were isolated on Pikovskaya (PVK), modified Pikovskaya (MPVK) and National Botanical Research Institute agar (NBRIP) media by spread plating. The viable colony count of P-solubilising bacteria (PSB) and fungi (PSF) was higher in rhizosphere than that of non-rhizosphere. The frequency of PSM was highest on MPVK followed by NBRIP and PVK agar. The maximum proportion of PSM out of total bacterial and fungal count was found in upper Keylong while the least in Rong Tong. The PSB frequently were Gram-positive, endosporeforming, motile rods and belonged to Bacillus sp. The PSF mainly belonged to Penicillium sp., Aspergillus fumigatus, A. niger, A. spp. and non-sporulating sterile. Amongst the isolates with high efficiency for tricalcium phosphate (TCP) solubilisation, seven bacterial and seven fungal isolates dissolved higher amount of P from North Carolina rock phosphate (NCRP) than Mussoorie rock phosphate (MRP) and Udaipur rock phosphate (URP). However, the organisms solubilised higher-P in NBRIP broth than PVK broth. SBC5 (Bacillus sp.) and SBC7 (Bacillus sp.) bacterial isolates exhibited maximun P solubilisation (40 and 33 ?g ml(-1) respectively) whereas FC28 (Penicillium sp.) isolate (52.3 ?g ml(-1)) amongst fungi while solubilising URP. The amount of P solubilised was positively correlated with the decrease in pH of medium. SBC5 (Bacillus sp.), SBC7 (Bacillus sp.) and SBC4 (Micrococcus) decreased the pH of medium from 6.8 to 6.08 while FC28 (Penicillium sp.) and FC39 (Penicillium sp.) isolates of fungi recorded maximum decrease in pH of medium from 6.8 to 5.96 in NBRIP broth. PMID:23100719

Chatli, Anshu S; Beri, Viraj; Sidhu, B S

2008-06-01

403

Ultra-performance liquid chromatography coupled with high-resolution quadrupole time-of-flight mass spectrometry analysis of the impact of bran-processing on the chemical profile of Radix Paeoniae Alba (Baishao).  

PubMed

In this study, a rapid and versatile ultra-performance liquid chromatography coupled with high-resolution quadrupole time-of-flight mass spectrometry-based chemical profiling approach was applied to evaluate chemical constitution of crude and processed Radix Paeoniae Alba (RPA) samples. A total of 44 compounds were identified, among which the contents of 9 compounds in processed samples were obviously decreased and 8 compounds were increased. Furthermore, compound 28 was not found in RPA sample after stir-frying with wheat bran. The proposed method provided a chemical basis for exploring the processed mechanism of herbal medicine. PMID:25434978

Zheng, Zhiyong; Cao, Gang; Wu, Xin; Chen, Xiaocheng; Cai, Baochang

2014-12-01

404

Antioxidant Activity of Mulberry Fruit Extracts  

PubMed Central

Phenolic compounds were extracted from the fruits of Morus nigra and Morus alba using methanol and acetone. The sugar-free extracts (SFEs) were prepared using Amberlite XAD-16 column chromatography. All of the SFEs exhibited antioxidant potential as determined by ABTS (0.751.25 mmol Trolox/g), DPPH (2,2-diphenyl-1-picrylhydrazyl) (EC50 from 48 ?g/mL to 79 ?g/mL), and reducing power assays. However, a stronger activity was noted for the SFEs obtained from Morus nigra fruits. These extracts also possessed the highest contents of total phenolics: 164 mg/g (methanolic SFE) and 173 mg/g (acetonic SFE). The presence of phenolic acids and flavonoids in the extracts was confirmed using HPLC method and chlorogenic acid and rutin were found as the dominant phenolic constituents in the SFEs. PMID:22408465

Arfan, Muhammad; Khan, Rasool; Rybarczyk, Anna; Amarowicz, Ryszard

2012-01-01

405

Dirio Econmico -Universidades Como ser investigador em Portugal  

E-print Network

Diário Económico - Universidades Como é ser investigador em Portugal Autor: N.D. Editora: ST e SF - Universidades Como é ser investigador em Portugal Autor: N.D. Editora: ST e SF Id: 1646658 Data Publicação: 19

Instituto de Sistemas e Robotica

406

Radix Paeoniae Rubra and Radix Paeoniae Alba Attenuate CCl4-Induced Acute Liver Injury: An Ultra-Performance Liquid Chromatography-Mass Spectrometry (UPLC-MS) Based Metabolomic Approach for the Pharmacodynamic Study of Traditional Chinese Medicines (TCMs)  

PubMed Central

Metabolomics has been frequently used in pharmacodynamic studies, especially those on traditional Chinese medicine (TCM). Radix Paeoniae Alba and Radix Paeoniae Rubra are popularly used in TCM, and both have hepatoprotective effects. In this study, a CCl4-induced acute liver injury rat model was established and confirmed by the observed serum aminotransferase activities. The metabolomics approach was applied to study the influence of Radix Paeoniae Alba and Radix Paeoniae Rubra on the metabolic changes in rats with acute liver injury. The partial least-squares-discriminant analysis (PLS-DA) of rat serum and their ultra-performance liquid chromatography-mass spectrometry (UPLC-MS) fingerprints allowed discrimination of controlled, acute liver injury-model rats after administration of the two types of TCMs. The time-dependent PLS-DA plots showed that the changes in the metabolic patterns of the rats, which were administered with the TCMs, had stabilized within 2 h after they received the intraperitoneal CCl4 injection. The results indicated the protective effect of TCMs against liver injury. Several potential biomarkers were detected and identified, which included creatine, deoxycholic acid, choline, 5-methylenetetrahydrofolate, folic acid, and glycocholic acid. The physiological significance of these metabolic changes was discussed. PMID:23203085

Wang, Rui; Xiong, Ai-Zhen; Teng, Zhong-Qiu; Yang, Qi-Wei; Shi, Yan-Hong; Yang, Li

2012-01-01

407

Indicators of climate change effects: Relationships between crown transparency and butt rot in silver fir (Abies alba Mill.) in Middle Italy  

NASA Astrophysics Data System (ADS)

Climatic analysis conducted on the trends and changes in temperature and rainfall during the 20th century in the Tuscan Apennine Alps (Middle Italy) have highlighted the possibility that these changes have a significant impact on the growth and/or health conditions or stress in silver fir (Abies alba Mill.). In this framework, identification of appropriate indicators to verify relationships between stress symptoms, which are frequently caused by climate adverse conditions, and pathological phenomena is a necessary step functional to the identification of climatic-environmental impacts on forests. The presence of butt rot pathology - a complex disease that causes rotting of the trunk internally - in silver fir is known the time as well as its severity. Nonetheless, very little research on the potential effects of changing climate conditions on the diffusion and intensity of butt rot seems available; thus, effects of climate change seem to be not excluded nor verified. No research or studies that quantify distribution and incidence or, especially, relationships of butt rot with adverse climatic and/or environmental factors were found. However, climatic alterations can have an impact on the intensity and spread of serious disease complexes and therefore it is of great importance to investigate the relationships between climate changing conditions, diffusion and incidence of butt rot in silver fir forests for their conservation and the management of species and biodiversity associated. As butt rot unlikely could be directly related to climate variables, crown transparency has been used as a proxy for tree growth, where climate variability is assumed to be the main driver of silver fir growth and stress. Actually, crown transparency is considered to be a main factor associated to tree growth, and healthier trees are assumed to grow faster than less-healthy trees. Thus, theoretically denser crowns would correspond to faster growing and healthier trees and indicate better climatic-environmental conditions, and vice versa. If so, crown transparency may be expected to be an indicator of butt rot diffusion and incidence. Our research shows that it may not be necessarily so.

D'Aprile, Fabrizio; Tapper, Nigel

2014-05-01

408

NORMAS GERAIS PARA INGRESSO COMO PORTADOR DE DIPLOMA DE  

E-print Network

1 NORMAS GERAIS PARA INGRESSO COMO PORTADOR DE DIPLOMA DE GRADUA??O (BRASIL) PERÍODO 2013.1 PRAZO COMO PORTADOR DE DIPLOMA DE GRADUA??O DO BRASIL I­DAS CONDI??ES Portadores de Diploma de Graduação de; - Certificado de Dispensa de Incorporação; - CPF; Se candidato estrangeiro: - Certificado de

409

Simultaneous determination of bioactive components of Radix Angelicae Sinensis-Radix Paeoniae Alba herb couple in rat plasma and tissues by UPLC-MS/MS and its application to pharmacokinetics and tissue distribution.  

PubMed

A highly sensitive and rapid ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) has been developed and validated for simultaneous quantification of seven components in rat plasma and five components in rat tissues after oral administration of the extracts of different combination Radix Angelicae Sinensis-Radix Paeoniae Alba herb couple and has been applied to compare the different pharmacokinetics and tissue distribution properties of these bioactive components. The extracts of Radix Angelicae Sinensis (RAS), Radix Paeoniae Alba (RPA) and Radix Angelicae Sinensis-Radix Paeoniae Alba herb couple (RRHC) were orally administrated to rats, respectively. The concentrations of ferulic acid, caffeic acid, vanillic acid, ligustilide, paeoniflorin, albiflorin and oxypaeoniflorin in rat plasma and the concentrations of ferulic acid, vanillic acid, paeoniflorin, albiflorin and oxypaeoniflorin in tissues were determined by UPLC-MS/MS. The plasma samples were pretreated by protein precipitation with methanol and the tissue samples were homogenated with water and pretreated by protein precipitation with methanol. Chromatographic separation was performed on a C18 column using 0.1% formic acid-acetonitrile as mobile phase for gradient elution. A triple quadrupole (TQ) tandem mass spectrometry equipped with an electrospray ionization source was used as detector operating both in positive and negative ionization mode and operated by multiple-reaction monitoring (MRM) scanning. Noncompartmental pharmacokinetic parameters were calculated by DAS 2.0 program. The differences between each group were compared by SPSS 16.0 with Independent-Samples T-test. The pharmacokinetic parameters (such as Cmax, Tmax, T1/2, AUC0-T, MRT0-T, Vz/F or CLz/F) of all the detected components between the single herb (RAS or RPA) and herb pair (RRHP) showed significant differences (P<0.05). It indicated that the compatibility of RAS and RPA could alter the pharmacokinetics features of each component. Tissue distribution results showed that ferulic acid, vanillic acid, paeoniflorin, albiflorin and oxypaeoniflorin mostly distributed in liver and kidney both in herb couple and single herb distributed most in liver and kidney. Compared with single herb, RRHC could increase or decrease the concentrations of five components at different time points compared with the sing herb. The results indicated the method was successfully applied to the comparative study on pharmacokinetics and tissue distribution of different combination of RRHC in rats. The compatibility of two Chinese herbs could alter the pharmacokinetics and tissue distribution properties of major bio-active components in the single herb. The results might be helpful for further investigation of compatibility mechanism of RRHC. PMID:24927419

Luo, Niancui; Li, Zhenhao; Qian, Dawei; Qian, Yefei; Guo, Jianming; Duan, Jin-Ao; Zhu, Min

2014-07-15

410

Thermal efficiency and particulate pollution estimation of four biomass fuels grown on wasteland  

SciTech Connect

The thermal performance and concentration of suspended particulate matter were studied for 1-hour combustion of four biomass fuels, namely Acacia nilotica, Leucaena leucocepholea, Jatropha curcus, and Morus alba grown in wasteland. Among the four biomass fuels, the highest thermal efficiency was achieved with Acacia nilotica. The suspended particulate matter concentration for 1-hour combustion of four biomass fuels ranged between 850 and 2,360 {micro}g/m{sup 3}.

Kandpal, J.B.; Madan, M. [Indian Inst. of Tech., New Delhi (India). Centre for Rural Development and Technology

1996-10-01

411

In vitro antioxidant properties of indigenous underutilized fruits  

Microsoft Academic Search

In the present study, in vitro antioxidant and free radical scavenging capacity of methanol extracts from 10 underutilized fruits viz., Syzygium cumini, Murraya koenigii, Coccinia grandis, Opuntia dillenii, Carissa carandus, Kirganalia reticulata, Canthium parviflorum,\\u000a Lantana camara, Alangium lamarckii, and Morus alba were evaluated using established in vitro models such as ferric reducing antioxidant power (FRAP), 2,2-diphenyl-1-picryl-hydrazyl (DPPH), 2,2?azinobis(3-ethylbenzothiozoline-6-sulfonic acid) diammonium

Nataraj Loganayaki; Sellamuthu Manian

2010-01-01

412

Fruit extracts and ruthenium polypyridinic dyes for sensitization of TiO 2 in photoelectrochemical solar cells  

Microsoft Academic Search

Dye-sensitization of nanocrystalline n-type TiO2 was achieved by using fruit extracts as a natural source of sensitizers. Fresh extracts of chaste tree fruit (maria-preta, Solanum americanum, Mill.), mulberry (amora, Morus alba, L.) and cabbage-palm fruit (aa??, Euterpe oleracea, Mart) were employed as TiO2 sensitizers in thin-layer sandwich-type photoelectrochemical solar cells. Conversion of visible light into electricity was accomplished with natural

Christian Graziani Garcia; Andr Sarto Polo; Neyde Yukie Murakami Iha

2003-01-01

413

Antihyperglycemic, Antioxidant and Antiglycation Activities of Mulberry Leaf Extract in Streptozotocin-Induced Chronic Diabetic Rats  

Microsoft Academic Search

In Thailand, beverages containing mulberry leaf (Morus alba L.) are believed to promote good health, especially in people with diabetes. We examined the effects of long-term administration\\u000a of an ethanolic extract of mulberry leaf (MA) on blood glucose, oxidative damage, and glycation in streptozotocin-induced\\u000a diabetic rats. Daily administration of 1g\\/kg MA for six weeks decreased blood glucose by 22%, which

Jarinyaporn Naowaboot; Patchareewan Pannangpetch; Veerapol Kukongviriyapan; Bunkerd Kongyingyoes; Upa kukongviriyapan

2009-01-01

414

Phenolic compounds from Potentilla alba  

Microsoft Academic Search

HPLC was used to determine the phenolic compounds. Portions (500 mg) of ground samples of air-dried raw material were weighed in 5-mL volumetric tubes. The volume was adjusted to the mark with MeOH (90%). The samples were irradiated for 30 min in an ultrasonic bath, left at room temperature for 34 h, placed for 15 min in the ultrasonic bath,

A. M. Kovaleva; E. R. Abdulkafarova

2011-01-01

415

Carbon assimilation, translocation and respiration in Fagus sylvatica and Abies alba stands measured by gas exchange and isotopic techniques during two contrasting climatic years  

NASA Astrophysics Data System (ADS)

Global warming is tremendously influencing the climate of mountain areas through constantly rising temperatures and changes in local hydrological cycle. Increase of precipitation extremes, seasonal shifts of rainfall regime, heat waves are becoming more and more frequent events here. Vulnerability and plasticity of the local individual tree species under changing climate has still to be evaluated under field conditions. Two consecutive years, 2012 and 2013 were quite distinct in the climatic conditions during the plant growing season. Summer 2012 was characterized by a prolonged summer drought with almost no precipitation in central Italy from the end of May up to the end of August. The situation was aggravated by a very dry winter during this year. Mean annual temperatures in 2012 were 2oC higher in respect to the temperatures measured in the last 10 years. Conversely, year 2013 was milder with occasional rain events also during the summer months and temperatures close to the average values. In the Alpine zone the difference between two years were less pronounced with 2012 being slightly warmer than average and 2013 was characterized by unusually abundant spring precipitations. Taking advantage of these two contrasting years, we have monitored a functional response of one deciduous and one coniferous mountain forest stands growing in different mountain climate zones to variations in the local climate. The first, a deciduous European beech (Fagus sylvatica) forest, is located in the Appennine region of Italy at 1700 m height (Collelongo site, AQ) and characterized by a Mountain-Mediterranean climate. The second is a mixed forest dominated by Silver fir (Abies alba) which was chosen as a target species for our study. The site is located at 1350m height in the south-eastern Alps (Lavarone, TN) and is characterized by a mountain temperate climate. Sampling of plant material and point flux measurements were performed in the beginning, middle and the end of the growing season each year. At the beech site the middle samplings corresponded to the peak of the drought season whereas the last samplings of each year - to recovery phase. Leaves were sampled with three replicates at three heights. Assimilation activity was monitored on the leaf level with a portable LiCor 6400 system. Leaf respiration was measured with the same instrument after keeping the leaves for 30 min in darkness. Recently assimilated soluble sugars as well as bulk leaf organic matter were analysed in the laboratory for their ?13C signature and for sugars quantity and composition. Trunk, root and soil respirations together with their ?13C signatures were measured with closed static chambers by the Keeling plot approach. Phloem was sampled with a bark core aiming to analyse the C isotopic signature and composition of assimilates translocate downward with the phloem flow. A sequence of climatically different growing seasons and detailed analyses of plant material allowed us to evaluate climatically-induced variations in different steps of the C cycle at a plant level and to derive some conclusions on the plasticity of European beech and Silver fir in response to changing climate.

Gavrichkova, Olga; Scartazza, Andrea; Zampedri, Roberto; Cavagna, Mauro; Sottocornola, Matteo; Matteucci, Giorgio; Brugnoli, Enrico

2014-05-01

416

Salix alba and Populus nigra seedlings resistance to physical hydro-sedimentary stresses: nursery experimental approach compared to in situ measurements  

NASA Astrophysics Data System (ADS)

In Europe, riparian Salicaceae is declining following the loss of potential germination areas associated with river management. Nevertheless, as an exception for lowland rivers, the Loire River (France) shows in its middle reaches an efficient sexual regeneration of Populus nigra and Salix alba species on bare sediments deposited during flood events. The study focuses on the influence of flow, sediment dynamics and fluvial maintenance operations on the establishment and survival of black poplar and white willow seedlings during the first year of development in a lowland sandy-gravel river, the Middle Loire. Main questions are: what is the influence of morphological and sedimentary features on seedlings recruitment and how do they withstand the hydro-sedimentary stresses occurring during high flow periods? How fluvial management works, and induced morphology and sedimentary features, modify the sediment dynamics and subsequent establishment and maintenance of seedlings? To answer these questions, we developed an ex-situ approach which allowed, under controlled conditions, to determine the influence of the sedimentological characteristics of the substrate on the development and maintenance of seedlings with a specific focus on the root system. Three experiments were carried out for three sedimentary mixtures from the river (sand, sand-gravel and 0.2 m of sand superimposed on sand-gravel mixture) that correspond to grain size and stratigraphy conditions often observed on bars and secondary channels in the Loire. The experimental design includes 108 plots of 1 m3, with 400 seeds per plot (corresponding to the Loire density measurements) and combining seeds from two species, three sedimentary mixtures, four replicates and three experiments. Experiment 1 (control) is based on the architecture of root systems using the WinRHIZO image analysis software. Experiment 2 is relative to the evaluation of constraints leading to "uprooting" of seedlings. Experiment 3 provides data on the seedlings survival once buried during a flood event. Genetic diversity of the seed lots will be investigated via biomass and shoot / root ratio. Results reveal that willow seedlings have a higher density of roots compared to poplar. In sand mixture, poplar has a taproot system; in sand-gravel mixture, taproot is divided into several roots which leads to a branched root system. The required forces to uprooting are twice much important for sand-gravel mixture. In situ measurements detail the sediment dynamics and morphological evolution during and after floods (topography, scour/fill processes, grain size surveys, flow velocity, sediment transport rates) on a managed alluvial bar. Results associated with floods occurring after fluvial management works highlight the rapid regeneration of bedforms associated with sedimentary and hydraulics constraints. This leads to the development of new morphological and sedimentological units, suitable for seedlings recruitment. Thirty plots measurements of seedlings (densities and species) established were associated with these news physical conditions over the bar. Black poplar and white willow appeared for a wide range of grain sizes and on specific morphological units. Seedlings survival will be analyzed with regard to physical constraints determined for each plot from measurements of hydro-sedimentary dynamics and then compared to ex situ results.

Wintenberger, Coraline; Rodrigues, Stephane; Breheret, Jean-Gabriel; Jug, Philippe; Villar, Marc

2014-05-01

417

Dimeric procyanidins: screening for B1 to B8 and semisynthetic preparation of B3, B4, B6, And B8 from a polymeric procyanidin fraction of white willow bark (Salix alba).  

PubMed

Fifty-seven samples have been analyzed with regard to the occurrence of dimeric procyanidins B1-B8 as well as the composition of polymeric procyanidins. Fifty-two samples were found to contain polymeric procyanidins. In most of the samples, (-)-epicatechin was the predominant unit present. In white willow bark (Salix alba), however, large amounts of (+)-catechin (81.0%) were determined by means of phloroglucinolysis. White willow bark has therefore been used for the semisynthetic formation of dimeric procyanidins B3 [(+)-C-4alpha --> 8-(+)-C)], B4 [(+)-C-4alpha --> 8-(-)-EC)], B6 [(+)-C-4alpha --> 6-(+)-C)], and B8 [(+)-C-4alpha --> 6-(-)-EC)]. The reaction mixtures of the semisynthesis were successfully fractionated with high-speed countercurrent chromatography (HSCCC), and dimeric procyanidins B3, B4, B6, and B8 were obtained on a preparative scale. PMID:20533825

Esatbeyoglu, Tuba; Wray, Victor; Winterhalter, Peter

2010-07-14

418

NORMAS GERAIS PARA INGRESSO COMO PORTADOR DE DIPLOMA DE  

E-print Network

1 NORMAS GERAIS PARA INGRESSO COMO PORTADOR DE DIPLOMA DE GRADUA??O (BRASIL) PERÍODO 2013.2 PRAZO PORTADOR DE DIPLOMA DE GRADUA??O DO BRASIL I­DAS CONDI??ES Portadores de Diploma de Graduação de Cursos; - Certificado de Dispensa de Incorporação; - CPF; Se candidato estrangeiro: - Certificado de Concl

419

El teatro como reflexin colectiva: Conversacin con Sergio Corrieri  

E-print Network

SPRING 1983 51 El teatro como reflexin colectiva: Conversacin con Sergio Corrieri Gerardo Luzuriaga Sergio Corrieri es el director del renombrado Teatro Escambray, fundado por l y otros teatristas de La Habana en 1968 en la regin del... propios del subdesarrollo. La supersticin, por ejemplo, muy extendida en nuestras zonas rurales; el reparo del campesino, sus dudas ante la colectivizacin del trabajo agrcola, ante el hecho de unir sus esfuerzos con los de otros campesinos, y en...

Luzuriaga, Gerardo

1983-04-01

420

Valorisation of Como Historical Cadastral Maps Through Modern Web Geoservices  

NASA Astrophysics Data System (ADS)

Cartographic cultural heritage preserved in worldwide archives is often stored in the original paper version only, thus restricting both the chances of utilization and the range of possible users. The Web C.A.R.T.E. system addressed this issue with regard to the precious cadastral maps preserved at the State Archive of Como. Aim of the project was to improve the visibility and accessibility of this heritage using the latest free and open source tools for processing, cataloguing and web publishing the maps. The resulting architecture should therefore assist the State Archive of Como in managing its cartographic contents. After a pre-processing consisting of digitization and georeferencing steps, maps were provided with metadata, compiled according to the current Italian standards and managed through an ad hoc version of the GeoNetwork Opensource geocatalog software. A dedicated MapFish-based webGIS client, with an optimized version also for mobile platforms, was built for maps publication and 2D navigation. A module for 3D visualization of cadastral maps was finally developed using the NASA World Wind Virtual Globe. Thanks to a temporal slidebar, time was also included in the system producing a 4D Graphical User Interface. The overall architecture was totally built with free and open source software and allows a direct and intuitive consultation of historical maps. Besides the notable advantage of keeping original paper maps intact, the system greatly simplifies the work of the State Archive of Como common users and together widens the same range of users thanks to the modernization of map consultation tools.

Brovelli, M. A.; Minghini, M.; Zamboni, G.

2012-07-01

421

La poesa como elemento de estructura dramtica en Alfonsina  

E-print Network

la luz. La ciudad de Mendoza, ubicada a 1.100 km de la capital federal y al pie de la Cordillera de los Andes que la separa de Chile, tiene una larga tradicin literaria en general y teatral en particular. Como zona de paso entre Buenos Aires y.... Vctima de una enfermedad incurable, se quit la vida arrojndose al mar. Su poesa evoluciona desde el modernismo y el parnasianismo hasta los movimientos de vanguardia: La inquietud del rosal, El dulce dao, Irremediablemente, Languidez, Ocre y...

Navarette, José Francisco

1990-10-01

422

Reduced climate sensitivity of carbon, oxygen and hydrogen stable isotope ratios in tree-ring cellulose of silver fir (Abies alba Mill.) influenced by background SO2 in Franconia (Germany, Central Europe).  

PubMed

The climate sensitivity of carbon (?(13)C), oxygen (?(18)O) and hydrogen (?(2)H) isotope signatures in tree-ring cellulose of Abies alba Mill. from a marginally industrialized area of Franconia (Germany) was analysed for the last 130 years. All isotopes preserve climatic signals up to c. 1950 AD. After 1950 we observe a clear reduction in climate sensitivity of ?(13)C and ?(2)H while ?(18)O - climate relations remain well pronounced. Nevertheless statistical tests implied that SO2 background emissions of West Germany had influenced isotope signatures long before 1950. The relationships between isotope values and concentrations of SO2, dust, O3 and NO2 at the regional level during the period 1979-2006 indicate that ?(13)C and ?(18)O were influenced primarily by SO2. The impact of SO2 on ?(2)H was negligible, but the observed reduction of climate sensitivity may be caused by synergic influences. The results have significant implications if isotope signatures from tree-rings from anthropogenic influenced regions are used to reconstruct past climate. PMID:24316066

Boettger, Tatjana; Haupt, Marika; Friedrich, Michael; Waterhouse, John S

2014-02-01

423

comoR: a software for disease comorbidity risk assessment  

PubMed Central

Background The diagnosis of comorbidities, which refers to the coexistence of different acute and chronic diseases, is difficult due to the modern extreme specialisation of physicians. We envisage that a software dedicated to comorbidity diagnosis could result in an effective aid to the health practice. Results We have developed an R software comoR to compute novel estimators of the disease comorbidity associations. Starting from an initial diagnosis, genetic and clinical data of a patient the software identifies the risk of disease comorbidity. Then it provides a pipeline with different causal inference packages (e.g. pcalg, qtlnet etc) to predict the causal relationship of diseases. It also provides a pipeline with network regression and survival analysis tools (e.g. Net-Cox, rbsurv etc) to predict more accurate survival probability of patients. The input of this software is the initial diagnosis for a patient and the output provides evidences of disease comorbidity mapping. Conclusions The functions of the comoR offer flexibility for diagnostic applications to predict disease comorbidities, and can be easily integrated to highthroughput and clinical data analysis pipelines. PMID:25045465

2014-01-01

424

FUNDAMENTOS TERICOS DE LA COORDINACIN COMO PREMISA ESENCIAL PARA DESARROLLAR EL TRABAJO SOCIOCULTURAL COMUNITARIO  

Microsoft Academic Search

La cultura como conjunto de relaciones humanas que ha transcendido en el tiempo y que le permite al hombre conservar, reproducir, crear nuevos conocimientos y valores para la transformacin de su medio social y cultural, cada da cobra mayor importancia como sostn fundamental para la satisfaccin de las necesidades espirituales y como elemento de influencia directa en la produccin de

Ricardo Basilio Enoa Leyva

2010-01-01

425

Pharmacokinetic comparisons by UPLC-MS/MS of isomer paeoniflorin and albiflorin after oral administration decoctions of single-herb Radix Paeoniae Alba and Zengmian Yiliu prescription to rats.  

PubMed

Zengmian Yiliu (ZMYL), a traditional Chinese formula, is designed to improve clinical efficacy and reduce adverse effects in combination with cisplatin in ovarian cancer chemotherapy. In ZMYL, Radix Paeoniae Alba (RPA, made from root of Paeonia lactiflora Pall.) acts as an adjunctive drug in cancer treatment by ameliorating side effects induced by radio- and chemotherapy. The pharmacokinetics differences between isomer albiflorin and paeoniflorin, the main components of RPA, after oral administration decoction of single-herb RPA and ZMYL were compared using a sensitive and accurate UPLC-MS/MS. The results indicate that there are statistically significant differences between the pharmacokinetic parameters: decreasing area under the plasma concentration-time curve (AUC), maximum concentration (Cmax ), elimination rate constant (Ke ) and increasing apparent volume of distribution (Vd ) and clearance (CL) for albiflorin, increasing distribution half-life (T1/2d ) and decreasing elimination half-life (T1/2e ), distribution rate constant (Kd ) and absorption rate constant (Ka ) for paeoniflorin in the ZMYL group compared with the single-herb RPA group. In comparison with albiflorin, the pharmacokinetic parameters of paeoniflorin included significantly increasing mean residence time (MRT) and Vd , decreasing CL and Ke in the single-herb RPA group and increasing MRT and T1/2d and decreasing CL, Ke and Kd in the ZMYL group. Both paeoniflorin and albiflorin are more likely, as the main active ingredients in RPA and ZMYL, to play a variety of pharmacological effects, and herb-herb interactions occur, resulting in different pharmacokinetics of albiflorin and paeoniflorin in RPA and ZMYL. Copyright 2014 John Wiley & Sons, Ltd. PMID:25042570

Gong, Can; Yang, Hong; Wei, Hai; Qi, Cong; Wang, Chang-Hong

2015-03-01

426

[Control in vitro tick (Boophilus microplus; Acari: Ixodidae) through plant extracts].  

PubMed

Control in vitro tick (Boophilus microplus; Acari: Ixodidae) through plant extracts. Hydro-alcohol extracts of ten tropical plants were tested by the immersion method on mature ticks (Boophilus microplus Canestrini 1887). The biological evaluation was made with raw hydro alcoholic extracts (R-OH) to determine the most promissory compounds, which later were fractioned in their polar and non-polar parts. The polar parts showed a significantly inferior effect. The species that produced the highest mortality were Zizigium aromaticum, Morus alba, Piper nigrum and the mixture of Allium sativum- Z. aromaticum (all non-polar); on oviposition: M. alba, P. nigrum and the mixture of A. sativum - Z. aromaticum (all non-polar); on eclosion: P. nigrum, Z. aromaticum, Echinacea angustiofilia, Poligonum punctatum, M. alba and the mixture of A. sativum-Z. aromaticum (all non-polar): on control percentage: P. nigrum, E. angustifolia, P. punctatum and M. alba (all non-polar, except for M. alba in which both fractions showed important activity); and finally, on the percentage of oviposition inhibition: P. nigrum, E. angustifolia, P. punctatum, Gliricidia sepium and M. alba. PMID:18624244

Alvarez, Vctor; Loaiza, Jorge; Bonilla, Roberto; Barrios, Mariano

2008-03-01

427

Exhaustive mapping of Co-Mo catalytic activity against their compositions in  

E-print Network

. Furthermore, at high pressure and longer time, the third region with a larger catalytic activity appearedExhaustive mapping of Co-Mo catalytic activity against their compositions in growing SWNTs from catalytic CVD with Co-Mo catalyst was systematically investigated and the catalytic activity was mapped

Maruyama, Shigeo

428

LA CULTURA COMO INVERSIN TURSTICA. UNA REFLEXIN A PROPSITO DEL GUGGENHEIM BILBAO  

Microsoft Academic Search

El turismo, objeto de diversas disciplinas, es uno de los sectores ms relevantes de la economa mundial, siendo en Espaa la primera industria nacional. En los ltimo aos el turismo cultural se ha revelado como un motor esencial de desarrollo para bastantes territorios. Un caso sobresaliente es el conocido como efecto Guggenheim que desde su creacin en 1997 se ha

Ainhoa Aguirregoitia Martnez

2011-01-01

429

Postcolonialismo como teora de la administracin internacional y su impacto en los negocios internacionales  

Microsoft Academic Search

Este trabajo tiene como objetivo analizar normativamente los discursos del colonialismo y el postcolonialismo como campos de investigacin de la administracin internacional. Los acercamientos tericos postcoloniales critican las representaciones euro cntrico y occidental del mundo no-occidental y llaman la atencin al conocimiento que claman tener del no occidente. Los acercamientos postcoloniales a la administracin internacional tambin tratan de los supuestos

Jos G. Vargas-Hernndez

2009-01-01

430

Ethnomedicines used in Trinidad and Tobago for urinary problems and diabetes mellitus  

PubMed Central

Background This paper is based on ethnobotanical interviews conducted from 19962000 in Trinidad and Tobago with thirty male and female respondents. Methods A non-experimental validation was conducted on the plants used for urinary problems and diabetes mellitus: This is a preliminary step to establish that the plants used are safe or effective, to help direct clinical trials, and to inform Caribbean physicians of the plants' known properties to avoid counter-prescribing. Results The following plants are used to treat diabetes: Antigonon leptopus, Bidens alba, Bidens pilosa, Bixa orellana, Bontia daphnoides, Carica papaya, Catharanthus roseus, Cocos nucifera, Gomphrena globosa, Laportea aestuans, Momordica charantia, Morus alba, Phyllanthus urinaria and Spiranthes acaulis. Apium graviolens is used as a heart tonic and for low blood pressure. Bixa orellana, Bontia daphnoides, Cuscuta americana and Gomphrena globosa are used for jaundice. The following plants are used for hypertension: Aloe vera, Annona muricata, Artocarpus altilis, Bixa orellana, Bidens alba, Bidens pilosa, Bonta daphnoides, Carica papaya, Cecropia peltata, Citrus paradisi, Cola nitida, Crescentia cujete, Gomphrena globosa, Hibiscus sabdariffa, Kalanchoe pinnata, Morus alba, Nopalea cochinellifera, Ocimum campechianum, Passiflora quadrangularis, Persea americana and Tamarindus indicus. The plants used for kidney problems are Theobroma cacao, Chamaesyce hirta, Flemingia strobilifera, Peperomia rotundifolia, Petiveria alliacea, Nopalea cochinellifera, Apium graveolens, Cynodon dactylon, Eleusine indica, Gomphrena globosa, Pityrogramma calomelanos and Vetiveria zizanioides. Plants are also used for gall stones and for cooling. Conclusion Chamaesyce hirta, Cissus verticillata, Kalanchoe pinnata, Peperomia spp., Portulaca oleraceae, Scoparia dulcis, and Zea mays have sufficient evidence to support their traditional use for urinary problems, "cooling" and high cholesterol. Eggplant extract as a hypocholesterolemic agent has some support but needs more study. The plants used for hypertension, jaundice and diabetes that may be safe and justify more formal evaluation are Annona squamosa, Aloe vera, Apium graveolens, Bidens alba, Carica papaya, Catharanthus roseus, Cecropia peltata, Citrus paradisi, Hibsicus sabdariffa, Momordica charantia, Morus alba, Persea americana, Phyllanthus urinaria, Tamarindus indicus and Tournefortia hirsutissima. Several of the plants are used for more than one condition and further trials should take this into account. PMID:17040567

Lans, Cheryl A

2006-01-01

431

In vitro hypoglycemic activity of methanolic extract of some indigenous plants.  

PubMed

Pakistan is rich in medicinally important plants and has ancient herbal treatment methods. Present work is based on the study of six indigenous plants Eugenia jambolana, Lawsonia inermis, Momordica charantia, Morus alba, Nigella sativa and Trigonella foenum graecum which show the inhibitory effect of glucose utilization, and are in use as hypoglycemic agents of varying degree in traditional system of medicine. The glucose uptake activity of (methanolic extracts) of these plants was tested in vitro and glucose was estimated by glucose oxidase method. The results in three different media revealed that, hypoglycemic activity is more prominent in neutral and basic media as compared to acidic medium. PMID:17604247

Arayne, M Saeed; Sultana, Najma; Mirza, Agha Zeeshan; Zuberi, M Hashim; Siddiqui, Farhan Ahmed

2007-10-01

432

78 FR 36163 - Bitterroot National Forest, Darby Ranger District, Como Forest Health Project  

Federal Register 2010, 2011, 2012, 2013, 2014

...populations; (2) reduce fuel loads and maintain the historic fire return interval; (3) improve forest resilience to dwarf mistletoe, root rot, Douglas-fir beetle, and spruce budworm; (4) and maintain the visual integrity of the larger Lake Como...

2013-06-17

433

Castrao qumica como pena, tratamento mdico ou experimento cientfico : consideraes bioticas.  

E-print Network

??Dissertao (mestrado)Universidade de Braslia, Faculdade de Cincias da Sade, Programa de Ps-Graduao em Biotica, 2014. A pedofilia classificada como doena psiquitrica e sua prtica (more)

Maia, Thais Meirelles de Sousa

2014-01-01

434

On Resilience of Multicommodity Dynamical Flow Networks Gustav Nilsson, Giacomo Como, and Enrico Lovisari  

E-print Network

On Resilience of Multicommodity Dynamical Flow Networks Gustav Nilsson, Giacomo Como, and Enrico of the network. Index Terms-- Dynamical flow networks, multicommodity flows, resilience, distributed routing, heterogeneous routing. I. INTRODUCTION In a multicommodity network particles of different classes flow through

Como, Giacomo

435

Atomic-Scale Structure of CoMoS Nanoclusters in Hydrotreating Catalysts  

Microsoft Academic Search

By means of scanning tunneling microscopy (STM), it has been possible to obtain the first atomic-scale images of the CoMoS structure present in hydrodesulfurization (HDS) catalysts. Information on the catalytically important edge structures has been obtained by synthesizing single-layer CoMoS nanoclusters using the Au(111) herringbone structure as a template. It is observed that the presence of the Co promoter atoms

J. V Lauritsen; S Helveg; E Lgsgaard; I Stensgaard; B. S Clausen; H Topse; F Besenbacher

2001-01-01

436

Evaluation of cytotoxicity and genotoxicity of some Philippine medicinal plants  

PubMed Central

The genotoxicity and toxicity of ethnomedicinal Philippine plants, which include Cassia fistula, Derris elliptica, Ficus elastica, Gliciridia sepium, Michelia alba, Morus alba, Pogostemon cablin and Ricinus communis, were tested using the Vitotox assay. The plants are used traditionally to treat several disorders like diabetes, weakness, menorrhagia, headache, toothache and rheumatism. The dried leaves were homogenized for overnight soaking in methanol at room temperature. The resulting alcoholic extracts were filtered and concentrated in vacuo and tested for their genotoxicity and cytotoxicity using Vitotox. Results showed that the medicinal plants that were tested are not genotoxic nor cytotoxic, except for R. communis and P. cablin, which showed toxicity at high doses (low dilutions) in the absence of S9. PMID:21716927

Chichioco-Hernandez, Christine; Wudarski, Jakub; Gevaert, Lieven; Verschaeve, Luc

2011-01-01

437

Morusin induces cell death through inactivating STAT3 signaling in prostate cancer cells.  

PubMed

STAT3 has been recognized as an efficacious drug target for prostate cancer because of its constitutive activation in this fatal disease. We recently identified the root bark of Morus alba Linn. as a potential STAT3 inhibitor among 33 phytomedicines traditionally used in Korea. Morusin, an active compound isolated from the root bark of Morus alba, has shown anti-oxidant and anti-inflammatory effects. In the present study, we examined whether morusin has a potential as an anti-cancer agent in prostate cancer. We found that morusin suppressed viability of prostate cancer cells, but little effect in normal human prostate epithelial cells. Morusin also reduced STAT3 activity by inhibiting its phosphorylation, nuclear accumulation, and DNA binding activity. In addition, morusin down-regulated expression of STAT3 target genes encoding Bcl-xL, Bcl-2, Survivin, c-Myc and Cyclin D1, which are involved in regulation of apoptosis and cell cycle. Furthermore, morusin induced apoptosis in human prostate cancer cells by reducing STAT3 activity. Taken together, these results suggest that morusin could be a potentially therapeutic agent for prostate cancer by reducing STAT3 activity and inducing apoptosis. PMID:25628938

Lim, Sung-Lyul; Park, Sang-Yoon; Kang, Sukmin; Park, Dain; Kim, Sung-Hoon; Um, Jae-Young; Jang, Hyeung-Jin; Lee, Jun-Hee; Jeong, Chul-Ho; Jang, Jung-Hee; Ahn, Kwang Seok; Lee, Seok-Geun

2015-01-01

438

Chemical properties in fruits of mulberry species from the Xinjiang province of China.  

PubMed

Mulberries are a widely cultivated foodstuff both in China and worldwide. However, there are stark differences in the nutritional values of mulberry species. To better appreciate these differences, we here describe the chemical characteristics of white (Morus alba L.), Russian (M. alba var. tatarica L.), and black (Morus nigra L.) mulberry fruits cultivated in the Xinjiang province of China. The chemical composition analysis was performed by official methods procedures. The amino acids were analysed by the phenyl isothiocyanate method. The 2,6-dichloroindophenol titrimetric method, the aluminium chloride colorimetric method, and the pH differential method were also used in measuring the content of reduced ascorbic acid, total flavonoids, and total monomeric anthocyanins, respectively. The black mulberry fruits had the highest content of reduced ascorbic acid (48.4 mg/100 g fw), titratable acidity (47.1 mg/g fw), and Fe (11.9 mg/100 g fw) of these 3 species. The Russian mulberry fruits had the highest EAA/TAA (essential amino acid/total amino acid) ratio at 44% followed by the white mulberry (42%) and the black mulberry (29%). The black mulberry fruits had found to be richest in terms of total flavonoids and total monomeric anthocyanins. These results are helpful for selecting mulberry species with abundant nutrients and phytochemicals for commercial cultivation. PMID:25529706

Jiang, Yan; Nie, Wen-Jing

2015-05-01

439

Morusin induces cell death through inactivating STAT3 signaling in prostate cancer cells  

PubMed Central

STAT3 has been recognized as an efficacious drug target for prostate cancer because of its constitutive activation in this fatal disease. We recently identified the root bark of Morus alba Linn. as a potential STAT3 inhibitor among 33 phytomedicines traditionally used in Korea. Morusin, an active compound isolated from the root bark of Morus alba, has shown anti-oxidant and anti-inflammatory effects. In the present study, we examined whether morusin has a potential as an anti-cancer agent in prostate cancer. We found that morusin suppressed viability of prostate cancer cells, but little effect in normal human prostate epithelial cells. Morusin also reduced STAT3 activity by inhibiting its phosphorylation, nuclear accumulation, and DNA binding activity. In addition, morusin down-regulated expression of STAT3 target genes encoding Bcl-xL, Bcl-2, Survivin, c-Myc and Cyclin D1, which are involved in regulation of apoptosis and cell cycle. Furthermore, morusin induced apoptosis in human prostate cancer cells by reducing STAT3 activity. Taken together, these results suggest that morusin could be a potentially therapeutic agent for prostate cancer by reducing STAT3 activity and inducing apoptosis. PMID:25628938

Lim, Sung-Lyul; Park, Sang-Yoon; Kang, Sukmin; Park, Dain; Kim, Sung-Hoon; Um, Jae-Young; Jang, Hyeung-Jin; Lee, Jun-Hee; Jeong, Chul-Ho; Jang, Jung-Hee; Ahn, Kwang Seok; Lee, Seok-Geun

2015-01-01

440

Como preparar un programa de informacion sobre la asistencia economica (Planning a Financial Aid Awareness Program).  

ERIC Educational Resources Information Center

This booklet, written in Spanish, is intended to be used with a set of slides as part of a presentation to students on "How To Apply for Federal Student Aid" ("Como Solicitar la Asistencia Economica Federal para Estudiantes"). The first part of the book is a script based on the slides. After the script is a guide to hosting a financial aid

Department of Education, Washington, DC.

441

Harold Varmus investido bajo juramento como 14. director del Instituto Nacional del Cncer  

Cancer.gov

Ganador del Premio Nobel, doctor Harold E. Varmus, prest juramento hoy como 14. director del Instituto Nacional del Cncer (NCI). "Es muy estimulante que ests de regreso con nosotros", dijo la secretaria del Departamento de Salud y Servicios Humanos Kathleen Sebelius en la ceremonia de toma de juramento. Hoy se abre un nuevo captulo para el Instituto Nacional del Cncer.

442

Uso de modelos de simulacin como soporte para la decisin de fertilizacin  

Microsoft Academic Search

La demanda de nutrientes es regulada por los factores definitorios del crecimiento (radiacin, temperatura, genotipo, fecha de siembra, etc.) y por factores limitantes del rendimiento como la disponibilidad de agua (lluvia efectiva, agua acumulada a la siembra, retencin de agua del suelo, sistema radical del cultivo, etc.). En general, aumentar el suministro de nutrientes aumenta el rendimiento hasta que ste

Jorge L. Mercau

443

Garcinia cambogia - uma espcie vegetal como recurso teraputico contra a obesidade?6  

Microsoft Academic Search

Resumo Atualmente, a obesidade um problema de sade pblica mundial, tanto nos pases desenvolvidos como nos em desenvolvimento, apresentando elevao de sua prevalncia. A transio nutricional um processo de modificaes seqenciais no padro de nutrio e consumo que acompanha mudanas econmicas, sociais e demogrficas, e mudanas do perfil de sade das populaes. Este trabalho objetiva abordar a comprovao

Ana C S Santos; Michelle S Alvarez; Priscila B Brando; Ary G Silva

444

XPS and TEM Studies of Co-Mo Catalysts on Quartz Substrates for Growth of SWNTs  

E-print Network

metal acetate solutions with a dip-coating method. Critical evidences of catalyst chemical state Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan 2 Department of Mechanical Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan Bimetallic Co-Mo catalysts1

Maruyama, Shigeo

445

PROPOSTA CURSO DE VERN: A DIVULGACIN COMO PONTE ENTRE CIENCIA E SOCIEDADE  

E-print Network

PROPOSTA CURSO DE VERÁN: A DIVULGACI?N COMO PONTE ENTRE CIENCIA E SOCIEDADE 2 e 3 de xullo de 2014 BEATRIZ HERVELLA NOGUEIRA. Licenciada en Ciencias Físicas pola USC e cofundadora de 4gotas atmosfera y CONFERENCIA - ESPECTÁCULO RICARDO PAREDES PAMPÍN. Licenciado en Ciencias Físicas pola USC e profesor de

Fraguela, Basilio B.

446

O CONCEITO DE EMANCIPAO COMO FUNDAMENTO PARA UMA TEORIA DA EDUCAO EM JRGEN HABERMAS  

Microsoft Academic Search

Neste breve artigo pretendemos apresentar elementos que possam ser sugestivos e indicativos para a fundamentao de uma teoria da educao a partir da compreenso do processo de esclarecimento enquanto processo de emancipao do homem na sociedade contempornea. Sabemos que Jrgen Habermas prope o recurso ao entendimento mtuo como meio para se chegar a um entendimento e se obter um consenso,

Bartolomeu Leite da Silva

2010-01-01

447

K.K. Gan Como03 1 The Ohio State University  

E-print Network

Cycle = 50%? Delay of Trailing Edges BPM Recovered Data Recovered 40 MHz Clock 0 0 0 0 0 1 Input transitions ] leading edges Internal delays ] trailing edges #12;K.K. Gan Como03 8 l Original design for ATLAS of activity in adjacent channels l channels with high threshold can be reduced with 2 pF at noise

Gan, K. K.

448

In vitro screening of some plant extracts against fungal pathogens of mulberry (Morus spp.)  

Microsoft Academic Search

Twenty one plant species were screened in vitro for their fungitoxic properties against four fungal pathogens viz., Phyllactinia corylea (Powdery mildew), Peridiopsora mori (Brown rust) and Pseudocercospora mori (Black leaf spot) by slide germination method and Myrothecium roridum (Brown leaf spot) by poisoned food technique. Conidial germination of P. corylea was significantly reduced in 5% (w\\/v) ethanolic extracts all tested

Manas Dev Maji; Souman Chattopadhyay; Pratheesh Kumar; Beera Saratchandra

2005-01-01

449

Mtodo de Fibonacci Como no mtodo da "Golden Section" o procedimento de procura de Fibonacci faz  

E-print Network

Método de Fibonacci Como no método da "Golden Section" o procedimento de procura de Fibonacci faz incerteza varia duma iteração para outra. O procedimento é baseado na sequência de Fibonacci Fn{ } definida acontece com os métodos da procura dicotómica e de "Golden section", o método de Fibonacci requer que o

Instituto de Sistemas e Robotica

450

Los marginados como personajes: Teatro chileno de la dcada de los sesenta  

E-print Network

factores artsticos. Por el contrario, la seleccin de agonistas se vincula ideo lgicamente con el sistema de valores del grupo productor del discurso teatral y el destinatario del mismo.1 Describir el discurso teatral chileno desde esta perspectiva... un indicador de los intereses polticos del grupo productor dentro del contexto nacional.2 El discurso teatral chileno hegemnicoel reconocido como "representativo"ha sido generalmente el discurso de los sectores medios destinado a los mismos...

Villegas, Juan

1986-04-01

451

Novas estratgias comunicativas como fator de qualidade na interao de surdos em um sistema organizacional  

E-print Network

122 Novas estratégias comunicativas como fator de qualidade na interação de surdos em um sistema formulário web e verificar se o uso de novas estratégias comunicativas melhora a interação dos surdos. Foram (MAC), uma com a interface original do sistema, e outra com o uso de novas estratégias comunicativas

Barbosa, Alberto

452

Buffer nitrogen solubility, in vitro ruminal partitioning of nitrogen and in vitro ruminal biological activity of tannins in leaves of four fodder tree species.  

PubMed

This study explores the chemical composition, buffer N solubility, in vitro ruminal N degradability and in vitro ruminal biological activity of tannins in leaves from Gliricidia sepium, Leucaena leucocephala, Morus alba and Trichanthera gigantea trees. These tree leaves are a potential protein source for ruminants, but their site-influenced nutritive value is largely unknown. Leucaena leucocephala leaves had the highest N content (42.1g/kg DM), while T.gigantea leaves had the least (26.1g/kg DM). Leucaena leucocephala had the highest buffer solubility index (20%), while 10% of the total N in leaves of the other three species was soluble. The rapidly fermentableN fraction 'a' was highest in M.alba leaves (734.9g/kg DM) and least in T.gigantea leaves (139.5g/kg DM). The rate of fermentation (c) was highest for M.alba (7%/hours) leaves. No significant correlations were recorded between buffer solubility index of N and in vitro ruminal N degradability parameters: a, b, and c. The highest response to tannin inactivation using polyethylene glycol, in terms of percentage increase in 36-hours cumulative gas production, was recorded in M.alba (39%) and T.gigantea (38%) leaves. It was concluded that buffer solubility of N is not a good indicator of ruminal N degradation in the leaves of these tree species. Leaves of M.alba could be more valuable as a source of rapidly fermentableN when animals are offered low-protein, high-fibre diets compared with other tree species evaluated in the current study. However, when feeding M.alba leaves, the role of tannins must be considered because these secondary plant compounds showed significant in vitro ruminal biological activity. PMID:24750263

Cudjoe, N; Mlambo, V

2014-08-01

453

A Utilizao da Astronomia como Tema Interdisciplinar e Aplicaes de Objetos de Aprendizagem  

NASA Astrophysics Data System (ADS)

Este trabalho visa analisar a possibilidade de relacionar contedos aplicados no ensino fundamental e mdio de forma interdisciplinar por intermdio da astronomia, com a interveno de objetos de aprendizagem que possam integrar as disciplinas e a utilizao de recursos tecnolgicos. Em uma pesquisa prvia com 20 professores de uma escola estadual situada na cidade de Guarulhos foi observado que apenas 25% dos professores utilizam algum recurso tecnolgico para o desenvolvimento de contedos pertinentes sua disciplina, tais como sites e softwares educativos, sendo que a maioria absoluta continua ensinando apenas com livros didticos. A maior parte dos professores apresenta dificuldades em trabalhar sua disciplina de forma interdisciplinar, ou seja, 75% dos professores preferem aplicar os contedos seguindo uma hierarquia linear de tpicos, evitando a discusso de temas que de alguma forma esto relacionados. A astronomia pode vir fascinar o ser humano e despertar sua curiosidade promovendo um maior interesse no aprendizado, podendo favorecer anlises interdisciplinares de forma lgica e objetiva, desta forma colocar a astronomia como tema motivador interdisciplinar, pode ser relevante no que se refere ao distanciamento da fragmentao dos contedos. No Estado de So Paulo, a implantao da proposta curricular no ensino fundamental e mdio mostra claramente a insero da astronomia na maior parte das sries, principalmente na 6ª srie em que todo o bimestre se fala de astronomia.

da Silva, L. A.; Voelzke, M. R.

2008-09-01

454

Analise do Impacto da Rede Social na Marcac~ao de Fotos como Favoritas no Flickr1  

E-print Network

An´alise do Impacto da Rede Social na Marcac¸~ao de Fotos como Favoritas no Flickr1 Luiz Alves´udo compartilhado por um usu´ario ´e valorado ou disseminado pelos seus contatos na rede social [Bigonha et al. 2010´arios na rede social, procuramos identificar o impacto da rede de contatos na marcac¸~ao de conte´udos como

Cirne, Walfredo

455

El Internet como fuente de informacin sobre la salud: la visin de estudiantes de Andaluca, Espaa.  

PubMed

El Internet (la red para usuarios de computadora) puede ser una herramienta til para adolescentes y jvenes en la bsqueda y uso de informacin sobre la salud. Las razones para ello han sido descritas en diversos estudios, sin embargo la confianza en la informacin disponible en el Internet es variable y persisten necesidades de alfabetizacin para su uso. Tanto el sistema de salud como el educativo pueden desempear un papel fundamental para el asesoramiento de la materia. Es necesario conocer las opiniones que tienen los estudiantes de educacin secundaria y de universidad en Andaluca, Espaa, sobre la relacin entre el Internet y la salud, el concepto