Turning on gibberellin and abscisic acid signaling

The phytohormones gibberellin (GA) and abscisic acid (ABA) play essential and often antagonistic roles in regulating plant growth, development and stress responses. The long-awaited identification of receptors for both GA and ABA has shed light upon the initial events that surround the perception of...

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Bibliographic Details
Published in:Current opinion in plant biology 2006-10, Vol.9 (5), p.454-459
Main Authors: Razem, Fawzi A, Baron, Kevin, Hill, Robert D
Format: Article
Language:English
Subjects:
abscisic acid
Abscisic Acid - metabolism
Arabidopsis Proteins - metabolism
gene expression regulation
gibberellic acid
gibberellins
Gibberellins - metabolism
literature reviews
Plant Growth Regulators - metabolism
Plant Physiological Phenomena
plant physiology
plants
receptors
Receptors, Steroid - metabolism
RNA-Binding Proteins - metabolism
signal transduction
Signal Transduction - physiology
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Summary:The phytohormones gibberellin (GA) and abscisic acid (ABA) play essential and often antagonistic roles in regulating plant growth, development and stress responses. The long-awaited identification of receptors for both GA and ABA has shed light upon the initial events that surround the perception of these two phytohormones. The discovery of these receptors also challenges conventional views of plant hormone signaling and raises intriguing questions regarding the nature of GA and ABA perception and the initiation of their signaling pathways. Moreover, recent advances in understanding GA and ABA signaling point to the existence of multiple, non-linear cell- and compartment-specific pathways that regulate genomic and non-genomic responses to these phytohormones.
ISSN:1369-5266
1879-0356
DOI:10.1016/j.pbi.2006.07.007