The effects of storage time and exogenous gibberellic acid on lychee seeds germination were studied. The seeds were removed from ripe fruits, washed, dried, stored at 8oC for 0, 15 and 30 days, and soaked during 24 hours in water and GA3 at 50, 100 and 200 mg.L-1 solutions. As the storage period

Gibberellin (GA4) has a significant effect on promoting dormancy release in flower buds of Japanese apricot (Prunus mume Sieb. et Zucc). The transcriptomic and proteomic changes that occur after GA4 treatment have been reported previously; however, the metabolic changes brought about by GA4 remain

Abstract: Gibberellin (GA) is a key signal molecule inducing differentiation of tracheary elements, fibers, and xylogenesis. However the molecular mechanisms underlying the effect of GA on xylem elongation and secondary wall development in tree species remain to be determined. In this study, Betula

exposure to exogenous GA. A subset of these GA-regulated genes was expressed in accordance with an increase in endogenous active GA levels, which occurs just before radicle emergence. The GA-responsive genes identified include those responsible for synthesis, transport, and signaling of other hormones

The mechanism of inhibition of coffee (Coffea arabica cv. Rubi) seed germination by exogenous gibberellins (GAs) and the requirement of germination for endogen-ous GA were studied. Exogenous GA417 inhibited coffee seed germination. The response to GA417 showed two sensitivity thresholds: a lower

Within Genetic Algorithms (GAs) the mutation rate is mostly handled as a global, external parameter, which is constant over time or exogeneously changed over time. In this paper a new approach is presented, which transfers a basic idea from Evolution Strategies (ESs) to GAs. Mutation rates

rapidly. The greatest concentration of ABA was found in 4-yr-old seed. Germination tests showed that germination rate could be enhanced in older seeds with lower concentrations of exogenous GA. Furthermore, the germination of seeds receiv-ing no exogenous GA showed a high positive correlation

The field of DNA damage responsiveness in general, and the consequences of endogenous and exogenous base damage in DNA, in particular, has made new and exciting contributions to our increasing understanding of the initiation and progression of neoplasia in humans. This article presents some

shoot was increased about 3.3 times by exogenous GA3. These results indicate that the biosynthesis of cAMP is stimulated by GA3. Key words: Cyclic AMP — GA3 action — Zea mays. Since cyclic AMP (cAMP) was originally discovered by Sutherland and Rail (Sutherland and Rail 1957, 1958, 1960), it has been

ABSTRACT: Gibberellic acid (GA3) is a plant hormone belongs to gibberellins. Plants produce low amount of GA3, therefore this hormone is produced by microorganisms. Exogenous GA3 on culture medium was used to increase height of Dyckia maritima shoots to facilitate In vitro manipulation. Grapevine