期刊
ANNUAL REVIEW OF PLANT BIOLOGY, VOL 71, 2020
卷 71, 期 -, 页码 379-402出版社
ANNUAL REVIEWS
DOI: 10.1146/annurev-arplant-073019-025907
关键词
auxin; SAUR-PP2C.D; acid growth; cell expansion; PM H+-ATPase; elongation
资金
- National Institutes of Health [GM067203]
- National Science Foundation [MCB-1613809, IOS-1360751]
The promotive effect of auxin on shoot cell expansion provided the bioassay used to isolate this central plant hormone nearly a century ago. While the mechanisms underlying auxin perception and signaling to regulate transcription have largely been elucidated, how auxin controls cell expansion is only now attaining molecular-level definition. The good news is that the decades-old acid growth theory invoking plasma membraneH(+)-ATPase activation is still useful. The better news is that a mechanistic framework has emerged, wherein Small Auxin Up RNA (SAUR) proteins regulate protein phosphatases to control H+-ATPase activity. In this review, we focus on rapid auxin effects, their relationship to H+-ATPase activation and other transporters, and dependence on TIR1/AFB signaling. We also discuss how some observations, such as near-instantaneous effects on ion transport and root growth, do not fit into a single, comprehensive explanation of how auxin controls cell expansion, and where more research is warranted.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据