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Related to Gibberellins: gibberellic acid, abscisic acid


Any of several plant hormones, such as gibberellic acid, that stimulate stem elongation, seed germination, and other physiological processes.

[From New Latin Gibberella (fujikoroī), the fungus from which a gibberellin was first isolated, from Latin gibberella, feminine diminutive of gibber, hump (from the humplike shape of the genus's perithecia).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Botany) any of several plant hormones, including gibberellic acid, whose main action is to cause elongation of the stem: used in promoting the growth of plants, in the malting of barley, etc
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌdʒɪb əˈrɛl ɪn)

any of a class of growth hormones occurring in fungi and plants.
[1935–40; < New Latin Gibberella]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.gibberellin - a plant hormone isolated from a fungus; used in promoting plant growth
growth regulator, phytohormone, plant hormone - (botany) a plant product that acts like a hormone
gibberellic acid - a crystalline acid associated with gibberellin
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
In addition to efficient nutrient absorption and crop yield, foliar fertilizers provide higher resistance to insects and pests owing to the presence of various hormones such as gibberellins, cytokinins and auxins.
If Pro is part of the chain of signals that allow floral expression in citrus, we can conclude that its effect in this study occurred prior to the negative effect of exogenous gibberellins or independently, which inhibited flowering but did not modify Pro level.
The main control mechanism of germination is the hormonal balance between Abscisic acid (ABA) and Gibberellins (GA).
The mechanism of phytohormones in regulating the salt responses can be divided into two groups, namely, positive-related hormones (e.g., cytokinins (CKs), brassinosteroids (BRs), auxin, and gibberellins (GAs)) and stressed hormones (e.g., abscisic acid (ABA), jasmonic acid (JA), salicylic acid (SA)) (Kosova et al., 2012).
Gibberellins play a major role in diverse growth processes including seed development, organ elongation, senescence and control of flowering time [5].
Sinergism among auxins, gibberellins and cytokinins in tomato cv.
Production of gibberellins indole-3-acetic acid by Rhizobium phaseoli in relation to nodulation of Phaseolus vulgaris roots.
The gibberellins (GAs) are a large group of tetracyclic diterpenoid carboxylic acids, The GAs show positive effects on seed germination, leaf expansion, stem elongation, flower and trichome initiation, and flower and fruit development, They are essential for plants throughout their life cycle for growth-stimulatory functions.
Gibberellins soaking could significantly improve the seed germination rate; low temperature storage could prolong the vitality of gentian seeds.
It has been demonstrated that fruit set and early development are mainly induced by endogenous hormones produced in the ovaries, such as auxins and gibberellins (GAs), which have been described in the ovaries of pollinated or parthenocarpic fruits [5], or the exogenous application of hormones to unpollinated ovaries [6-7].
Gibberellins (GAs) consist of a family of diterpenoid acids, an important group of phytohormones that exercise different effects on growth and development of plants, such as germination, cell elongation, expansion of leaves, and development of flowers [1-3].