Due to worldwide distribution, high abundance and availability of physiologically diverse isolates the Roseobacter clade is one of the most intensively studied groups of marine bacteria. Organisms of this clade have been detected in a large variety of habitats, from coastal regions to deep-sea sediments and from ...
PubMed
Ostreococcus is a marine picophytoeukaryote for which culture studies indicate there are 'high-light' and 'low-light' adapted ecotypes. Representatives of these ecotypes fall within two to three 18S ribosomal DNA (rDNA) clades for the former and one for the latter. However, clade distributions and relationships to this form of niche partitioning are ...
Members of the class Flavobacteria in the phylum Bacteroidetes are among the most abundant picoplankton in coastal and polar oceans. Their diversity is high in marine waters. However, quantitative information about distribution patterns of flavobacterial clades is scarce. We analyzed the diversity and ...
The phylogeny, abundance, and biogeography of the NOR5/OM60 clade was investigated. This clade includes "Congregibacter litoralis" strain KT71, the first cultured representative of marine aerobic anoxygenic phototrophic Gammaproteobacteria. More than 500 16S rRNA sequences affiliated with this clade were retrieved ...
Very few studies have analysed the niches of pelagic protist in details. This is because for most protists, both an accurate species definition and methods for routine detection and quantification of cells are lacking. The morphospecies Micromonas pusilla, a marine unicellular green alga, is the most ubiquitous and cosmopolitan picoeukaryote described to date. This species comprises several ...
Previous attempts to determine palaeoenvironmental preferences in dinosaurs have generally been qualitative assessments based upon data from restricted geographical areas. Here, we use a global database of Cretaceous herbivorous dinosaurs to identify significant associations between clades and broad palaeoenvironmental categories (�terrestrial�, ...
NASA Astrophysics Data System (ADS)
Members of the bacterial phylum Planctomycetes are reported in marine water samples worldwide, but quantitative information is scarce. Here we investigated the phylogenetic diversity, abundance, and distribution of Planctomycetes in surface waters off the German North Sea island Helgoland during different seasons by 16S rRNA gene analysis and catalyzed reporter deposition ...
Metaproteomics is one of a suite of new approaches providing insights into the activities of microorganisms in natural environments. Proteins, the final products of gene expression, indicate cellular priorities, taking into account both transcriptional and posttranscriptional control mechanisms that control adaptive responses. Here, we report the proteomic composition of the o 1.2 lm fraction of a ...
Energy Citations Database
Metaproteomics is one of a suite of new approaches providing insights into the activities of microorganisms in natural environments. Proteins, the final products of gene expression, indicate cellular priorities, taking into account both transcriptional and posttranscriptional control mechanisms that control adaptive responses. Here, we report the proteomic composition of the < 1.2??m fraction ...
Proteorhodopsin (PR) is a protein that is abundant in marine bacterioplankton. PR is hypothesized to be a light-dependent proton pump, thus creating a proton gradient that can be used for energy production without electron transport. Currently, the only culture that has been reported to possesses PR is the highly abundant alphaproteobacterium "Candidatus ...
We assessed the composition of the bacterioplankton in the Atlantic sector of the Southern Ocean in austral fall and winter and in New Zealand coastal waters in summer. The various water masses between the subtropics/Agulhas-Benguela boundary region and the Antarctic coastal current exhibited distinct bacterioplankton communities with the highest richness ...
Haemosporidian parasites are widely distributed and common parasites of birds, and the application of molecular techniques has revealed remarkable diversity among their lineages. Four haemosporidian genera infect avian hosts (Plasmodium, Haemoproteus, Leucocytozoon and Fallisia), and Haemoproteus is split into two sub-genera based on morphological evidence and phylogenetic support for two ...
The oxidation of ammonia to nitrite is the first and often rate-limiting step in nitrification and plays an important role in both nitrogen and carbon cycling. This process is carried out by two distinct groups of microorganisms: ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB). This chapter describes methods for measuring the abundance of AOA and AOB using ...
Growth is one of the basic attributes of any living organism. Surprisingly, the growth rates of marine bacterioplankton are only poorly known. Current data suggest that marine bacteria grow relatively slowly having generation times of several days. However, some bacterial groups, such as the aerobic anoxygenic phototrophic (AAP) bacteria, have been shown to grow much faster. Two manipulation ...
Synechococcus is an abundant marine cyanobacterial genus composed of different populations that vary physiologically. Synechococcus narB gene sequences (encoding for nitrate reductase in cyanobacteria) obtained previously from isolates and the environment (e.g., North Pacific Gyre Station ALOHA, Hawaii or Monterey Bay, CA, USA) were used to develop quantitative PCR (qPCR) ...
PubMed Central
We combined denaturing gradient gel electrophoresis (DGGE), catalysed reporter deposition-FISH (CARD-FISH) and clone libraries to investigate the seasonality of the bacterial assemblage composition in north-west Mediterranean coastal waters. DGGE analysis indicated that bacterial diversity changed gradually throughout the year, although with a clear distinction of the summer ...
Cuneati; together with the description of a new species from the coastal mountains of Venezuela, Croton domatifer. The new species is the only one in the genus ...
Treesearch
Measurements of the natural abundances of carbon isotopes were made in acetate samples isolated from
NASA Technical Reports Server (NTRS)
... natural abundance isotopic measurement of δ ... freshwater plume into the deep salt wedge natural abundance isotopic measurements are ...
DTIC Science & Technology
The evolution of dengue virus (DENV) is characterized by phylogenetic trees that have a strong temporal structure punctuated by dramatic changes in clade frequency. To determine the cause of these large-scale phylogenetic patterns, we examined the evolutionary history of DENV serotype 1 (DENV-1) and DENV-3 in Thailand, where gene sequence and epidemiological data are ...
The class Prasinophyceae (Chlorophyta) contains several photosynthetic picoeukaryotic species described from cultured isolates. The ecology of these organisms and their contributions to the picoeukaryotic community in aquatic ecosystems have received little consideration. We have designed and tested eight new 18S ribosomal DNA oligonucleotide probes specific for different Prasinophyceae ...
... Florida Coastal Everglades (FCE) contains animal abundance of Notemigonus crysoleucas measurements in numberPerEffort units and were aggregated to ... ...
NBII National Biological Information Infrastructure
... Florida Coastal Everglades (FCE) contains animal abundance of Esox americanus measurements in numberPerEffort units and were aggregated ... ...
... Florida Coastal Everglades (FCE) contains animal abundance of Micropterus salmoides measurements in numberPerEffort units and were aggregated to ... ...
Copper appears to be influencing the distribution and abundance of phytoplankton in marine environments, and cyanobacteria are thought to be the most sensitive of the phytoplankton groups to copper toxicity. By using growth assays of phylogenetically divergent clades, we found that coastal strains of marine Synechococcus species were ...
Spatial patterns of marine Synechococcus diversity across ocean domains have been reported on extensively. However, much less is known of seasonal and multiannual patterns of change in Synechococcus community composition. Here we report on the genotypic diversity of Synechococcus populations in the Gulf of Aqaba, Northern Red Sea, over seven annual cycles of deep mixing and stabile stratification, ...
Members of the gammaproteobacterial clade NOR5/OM60 regularly form an abundant part, up to 11%, of the bacterioplankton community in coastal systems during the summer months. Here, we report the nearly complete genome sequence of one cultured representative, Congregibacter litoralis strain KT71, isolated from North Sea surface water. ...
We describe a method for microscopic identification of DNA-synthesizing cells in bacterioplankton samples. After incubation with the halogenated thymidine analogue bromodeoxyuridine (BrdU), environmental bacteria were identified by fluorescence in situ hybridization (FISH) with horseradish peroxidase (HRP)-linked oligonucleotide probes. Tyramide signal amplification was used to preserve the FISH ...
The capacity of some corals and other cnidarians to form symbioses with multiple algae (Symbiodinium) is a candidate route by which these symbioses tolerate variable environmental conditions. On Bermuda, the coral reef dwelling anemone Condylactis gigantea bears Symbiodinium of clades A and B. At thermally variable inshore and nearshore sites, clade A ...
... ten Georgia Coastal Ecosystem LTER sampling sites in September, 2003. Unfiltered subsamples were immediately preserved with buffered ... ...
... ten Georgia Coastal Ecosystem LTER sampling sites in September, 2002. Unfiltered subsamples were immediately preserved with buffered ... ...
Coastal and at sea locations of South American . ... phocoena) abundance was investigated during an aerial survey throughout the coastal waters of Bristol . ...
NASA Website
Bacteria in the SAR11 clade are highly abundant in marine surface waters, but currently little is known about the carbon compounds that support these large heterotrophic populations. To better understand the carbon requirements of these organisms, we conducted a multiphasic exploration of carbohydrate utilization among SAR11 isolates from the Northeast ...
It has been hypothesized that the potential for anaerobic metabolism might be a common feature of bacteria in coastal marine waters (L. Riemann and F. Azam, Appl. Environ. Microbiol. 68: 5554-5562, 2002). Therefore, we investigated whether different phylogenetic groups of heterotrophic picoplankton from the coastal North Sea were able to take up a simple ...
Bacteria belonging to the Roseobacter clade of the ?-Proteobacteria occupy a wide range of environmental niches and are numerically abundant in coastal waters. Here we reveal that Roseobacter-like bacteria may play a previously unrecognized role in the oxidation and cycling of manganese (Mn) in coastal waters. A ...
... abundance, striped anchovy B Area bf high abundance, bay anchovy ...
... Title : Distribution, Abundance, and Growth Rates at Phytoplankton in the California Coastal Zone. Descriptive Note : Final rept. 1 Oct 94-30 Nov 96. ...
Ruegeria sp. TW15, which belongs to the family Rhodobacteraceae, was isolated from an ark clam in the South Sea of Korea. Here is presented the draft genome sequence of Ruegeria sp. TW15 (4,490,771 bp with a G+C content of 55.7%), a member of the marine Roseobacter clade, which comprises up to 20% of the bacterioplankton in the coastal and oceanic mixed ...
Bacterial anaerobic ammonium oxidation (anammox) is an important process in the marine nitrogen cycle. Because ongoing eutrophication of coastal bays contributes significantly to the formation of low-oxygen zones, monitoring of the anammox bacterial community offers a unique opportunity for assessment of anthropogenic perturbations in these environments. The current study used ...
Ebria tripartita is a phagotrophic flagellate present in marine coastal plankton communities worldwide. This is one of two (possibly four) described extant species in the Ebridea, an enigmatic group of eukaryotes with an unclear phylogenetic position. Ebriids have never been cultured, are usually encountered in low abundance and have a peculiar combination ...
These ecosystems contain a diverse range of bacteria whose ... the Desulfosarcina group (class Deltaproteobacteria, sulfate reducing bacterial clade), .... Nichols, P.D. (2003) Prokaryotic Metabolic Activity and Community Structure in ...
... Florida Coastal Everglades (FCE) contains animal abundance of Poecilia latipinna measurements in numberPerEffort units and were aggregated to ... ...
... the LTER Network Office. The following dataset from Florida Coastal Everglades (FCE) contains animal abundance of Lepomis marginatus measurements ... ...
... Florida Coastal Everglades (FCE) contains animal abundance of Esox niger measurements in numberPerEffort units and were aggregated ... ...
... the LTER Network Office. The following dataset from Florida Coastal Everglades (FCE) contains animal abundance of Erimyzon sucetta measurements ... ...
... Florida Coastal Everglades (FCE) contains animal abundance of Ameiurus natalis measurements in numberPerEffort units and were aggregated to ... ...
... the LTER Network Office. The following dataset from Florida Coastal Everglades (FCE) contains animal abundance of Lucania goodei measurements ... ...
... Florida Coastal Everglades (FCE) contains animal abundance of Lepomis macrochirus measurements in numberPerEffort units and were aggregated to ... ...
... the LTER Network Office. The following dataset from Florida Coastal Everglades (FCE) contains animal abundance of Tilapia mariae measurements ... ...
... the LTER Network Office. The following dataset from Florida Coastal Everglades (FCE) contains animal abundance of Cyprinodon variegatus measurements ... ...
... the LTER Network Office. The following dataset from Florida Coastal Everglades (FCE) contains animal abundance of Labidesthes sicculus measurements ... ...
... the LTER Network Office. The following dataset from Florida Coastal Everglades (FCE) contains animal abundance of Lepisosteus platyrhincus measurements ... ...
... the LTER Network Office. The following dataset from Florida Coastal Everglades (FCE) contains animal abundance of Esox americanus measurements ... ...
... 10 weeks. probably reduce lobster abundance. The eqqs, coral red
... images, abundance and micro environmental variables. AIMS - Bioresources Library Institute of Marine and Coastal Sciences, Rutgers University...
