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Review
. 1998 Sep 29;353(1374):1439-44.
doi: 10.1098/rstb.1998.0299.

Signalling of abscisic acid to regulate plant growth

A Himmelbach  1 , M Iten, E Grill
Affiliations
Review

Signalling of abscisic acid to regulate plant growth

A Himmelbach et al. Philos Trans R Soc Lond B Biol Sci. .

Abstract

Abscisic acid (ABA) mediated growth control is a fundamental response of plants to adverse environmental cues. The linkage between ABA perception and growth control is currently being unravelled by using different experimental approaches such as mutant analysis and microinjection experiments. So far, two protein phosphatases, ABI1 and ABI2, cADPR, pH, and Ca2+ have been identified as main components of the ABA signalling pathway. Here, the ABA signal transduction pathway is compared to signalling cascades from yeast and mammalian cells. A model for a bifurcated ABA signal transduction pathway exerting a positive and negative control mechanism is proposed.

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