Abstract:
:During the past decade, much progress has been made toward understanding the mechanisms underlying plant hormone activity, from perception to nuclear events. However, the signaling mechanisms for abscisic acid (ABA) have remained largely obscure. Recent breakthroughs identifying FCA, which is an RNA-binding protein, the Mg-chelatase H subunit, and a G protein-coupled receptor as receptors for ABA provide a major leap forward in understanding the initial steps of ABA signaling mechanisms. Recent studies have also revealed the molecular mechanisms of second messenger production, protein modifications such as phosphorylation, and regulatory mechanisms of gene expression in the ABA response. Therefore, the connections between these events are also beginning to be determined. Here, we review recent progress and discuss the overall scheme of the ABA response mechanisms.
journal_name
Trends Plant Scijournal_title
Trends in plant scienceauthors
Hirayama T,Shinozaki Kdoi
10.1016/j.tplants.2007.06.013subject
Has Abstractpub_date
2007-08-01 00:00:00pages
343-51issue
8eissn
1360-1385issn
1878-4372pii
S1360-1385(07)00154-9journal_volume
12pub_type
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