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Gibberellin: inhibitor of an inhibitor of...?
Author(s) -
Harberd Nicholas P.,
King Kathryn E.,
Carol Pierre,
Cowling Rachel J.,
Peng Jinrong,
Richards Donald E.
Publication year - 1998
Publication title -
bioessays
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.175
H-Index - 184
eISSN - 1521-1878
pISSN - 0265-9247
DOI - 10.1002/(sici)1521-1878(199812)20:12<1001::aid-bies6>3.0.co;2-o
Subject(s) - gibberellin , endogeny , regulator , arabidopsis , plant growth , mutant , psychological repression , biology , microbiology and biotechnology , botany , biochemistry , gene , gene expression
Gibberellin is an endogenous plant growth regulator. Here, we describe our present understanding of how gibberellin regulates plant growth, using recent results gained from studies of gibberellin‐signalling mutants of Arabidopsis . These results show that a signalling pathway represses plant growth and that gibberellin releases this repression. In consequence, the well‐known growth‐promoting properties of gibberellin are due to its activity as an “inhibitor of an inhibitor” [Brian Pw. Sym Soc. Exp Bio 1957; 11:166–182 (Ref.1)] of plant growth. BioEssays 20:1001–1008, 1998. © 1998 John Wiley & Sons, Inc.