News on ABA transport, protein degradation, and ABFs/WRKYs in ABA signaling

被引：97

作者：

Antoni, Regina ^{[1
]}

Rodriguez, Lesia ^{[1
]}

Gonzalez-Guzman, Miguel ^{[1
]}

Pizzio, Gaston A. ^{[1
]}

Rodriguez, Pedro L. ^{[1
]}

机构：

[1] Univ Politecn Valencia, Inst Biol Mol & Celular Plantas, Consejo Super Invest Cient, ES-46022 Valencia, Spain

来源：

CURRENT OPINION IN PLANT BIOLOGY | 2011年 / 14卷 / 05期

关键词：

CHELATASE H-SUBUNIT; FINGER E3 LIGASE; ABSCISIC-ACID; TRANSCRIPTION FACTOR; SEED-GERMINATION; PLANT-RESPONSES; NEGATIVE REGULATORS; ARABIDOPSIS GROWTH; ABI5; MECHANISMS;

D O I：

10.1016/j.pbi.2011.06.004

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The recent identification of abscisic acid (ABA) transporters provides an important insight into the delivery of ABA from the vascular system and its uptake by target cells. A putative connection with PYR/PYL receptors is envisaged, linking ABA uptake and intracellular perception by a fast and efficient mechanism. Downstream signaling of the core pathway involves regulation of ABA-responsive element binding factors (ABFs/AREBs) through phosphorylation, ubiquitination, and sumoylation in the case of ABI5. Several E3 ligases appear to regulate ABA signaling either positively or negatively, although relatively few targets are known yet. ABFs/AREBs are themselves subjected to transcriptional regulation, and some transcription factors (TFs) harboring the WRKY domain (WRKYs) appear to regulate their expression through W-box sequences present in the promoters of ABFs/AREBs.

引用

页码：547 / 553

页数：7

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