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Related to gibberellin: abscisic acid, auxin, cytokinin


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 ?
Finally, it is noteworthy that anthocyanin content of gibberellin sprayed grapes was less than for non-sprayed vines.
1) Healing properties: Glucomannan, a mannose-rich polysaccharide, and gibberellin, a growth hormone, interacts with growth factor receptors on the fibroblast, thereby stimulating its activity and proliferation, which in turn significantly increases collagen synthesis after topical and oral Aloe vera.
* The Gene for Tall Peas Codes for an Enzyme Required to Make Gibberellin
Production of plant growth regulators such as auxin, cytokinin and gibberellin by inoculation with PGPR has also been suggested as a possible mechanism of action affecting plant growth.
It is already known that the plant hormone gibberellin controls how root cells elongate as the root grows in the model plant Arabidopsis thaliana.
Because scientific communication was so poor between the Orient and the Western world at the time, the information was not "discovered" by Westerners until British workers reported in 1955 that minute quantities of gibberellin acid would cause genetically dwarfed pea plants to grow to a normal size.
At shoot length measurement after a 14 day growth period, the cultures grown in the potentised growth substances showed a measurable effect on the seed growth characteristics when compared to the control substance, the most notable of these, gibberellin 17X, producing the largest growth stimulation.
Tokyo, Japan, Feb 1, 2006 - (JCN) - RIKEN announced on January 30 that its Plant Science Center has discovered an inactivation mechanism of gibberellin, a kind of hormone that promotes plant growth, in collaboration with Shanghai Institutes for Biological Sciences (SIBS).
Ordonio, Scientist I from the Philippine Rice Research Institute (PhilRice) of the DA, found for the first time in sorghum that gibberellin (GA) is crucial for the erectness of its culum.