gibberellin

(noun)

any of a class of diterpene plant growth hormones that stimulate shoot elongation, seed germination, and fruit and flower maturation

Related Terms

Examples of gibberellin in the following topics:

  • Auxins, Cytokinins, and Gibberellins

    • All physiological aspects of plants are affected by plant hormones (chemical messengers), including auxins, cytokinins, and gibberellins.
    • Five major plant hormones are traditionally described: auxins, cytokinins, gibberellins, ethylene, and abscisic acid.
    • Gibberellins (GAs) are a group of about 125 closely-related plant hormones that stimulate shoot elongation, seed germination, and fruit and flower maturation.

  • Abscisic Acid, Ethylene, and Nontraditional Hormones

    • In addition to the growth hormones auxins, cytokinins, gibberellins, there are two more major types of plant hormones, abscisic acid and ethylene, as well as several other less-studied compounds that control plant physiology.