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Transcriptional factor interaction: a central step in DELLA function

热2 libingbing 添加于 2010-4-21 21:40 | 2201 次阅读 | 0 个评论

作者
DAVIERE J, DELUCAS M, PRAT S
摘要
Gibberellins (GAs) affect several growth and developmental responses during the plant life cycle. Components essential for GA perception and GA signaling have been identified in rice and Arabidopsis and are conserved among vascular plants but not in Physcomitrella patens. The recent observation that DELLAs bind in nuclei to different members of the phytochrome interacting factor family, to block their transcriptional activity, is an important breakthrough to the understanding of the functional mechanism of these repressors. Beyond its role in GA-signaling repression, DELLAs were found to regulate GA homeostasis and to represent a convergence point for other hormone-signaling pathways. These repressors impose a growth restraint under environmental adverse conditions, allowing land plants to adapt their life cycle to the changing environment.
详细资料
- 文献种类:期刊
- 期刊名称: Current Opinion in Genetics & Development
- 期刊缩写: Current Opinion in Genetics & Development
- 期卷页: 2008年第18卷第4期 295-303页
- ISBN: 0959437X
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附件
Transcriptional factor interaction: a central step in DELLA function

libingbing 的文献笔记订阅

【原创】本文综述了DELLA的重要作用：除了在GA信号通路行使重要作用外（GA结合受体后，引起泛素化降解DELLA，从而使下游基因表达），在维持GA homeostasis上，以及作为多种激素的信号通路的crosstalk（如乙烯，生长素等），这些激素共同调控植物生长发育，并且在逆境中抑制生长 to adapt .

这篇文章的图解很形象，如Model for GID1-mediated GA signaling；Function of DELLAs in the control of GA homeostasis；Model for PIFs direct integration of light and GA signals.

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