Water stress causes a reduction in hydrostatic pressure and can cause an increase in abscisic acid in plant tissues. To assess the possible role of abscisic acid and hydrostatic pressure in water stress effects, we have compared the effects of water stress, abscisic acid, ...

Cordycepin, an inhibitor of RNA synthesis in barley (Hordeum vulgare L.) aleurone cells, does not inhibit the gibberellic acid-enhanced ..cap alpha..-amylase (EC 3.2.1.1.) synthesis in barley aleurone layers if it is added 12 hours or more after the addition of the hormone. However, the accumulation of ..cap alpha..-amylase activity ...

Gibberellic acid-induced ?-amylase synthesis in wheat aleurone layers (Triticum aestivum L. var Potam S-70) escaped from transcriptional control 30 h after addition of the hormone, as evidenced by the tissue's loss of susceptibility to cordycepin. Abscisic acid inhibited the accumulation of ?-amylase activity when ...

A relationship between abscisic acid concentration and leaf water status is reported. Water potentials were measured in leaves of Ambrosia artemisiifolia L. and Ambrosia trifida L. throughout a period of dehydration of intact plants. Tissues from the same leaves were analyzed for abscisic acid. For both species, ...

A relationship between abscisic acid concentration and leaf water status is reported. Water potentials were measured in leaves of Ambrosia artemisiifolia L. and Ambrosia trifida L. throughout a period of dehydration of intact plants. Tissues from the same leaves were analyzed for abscisic acid. For both species, ...

We report the effects of abscisic acid and auxin (?-naphthalene acetic acid) on regulation of enzyme synthesis during senescence of leaf sections of Rhoeo discolor Hance. Abscisic acid always accelerates the onset of and enhances the magnitude of the increase in activity of ...

et al., 2000). Apart from reciprocal effects on synthesis, interac- tions between ethylene and ABA (Cox et al., 2004) and ethylene enhanced growth by reducing ABA bio- synthesis while enhancing itsAbscisic Acid Antagonizes Ethylene-Induced Hyponastic Growth in Arabidopsis1[OA] Joris J. Benschop2

... Accession Number : AD0854129. Title : Abscission: Role of Abscisic Acid. ... Abstract : The effect of abscisic acid on cotton (Gossypium hirsutum L. cv. ...