Perception and signal transduction of cytokinins

被引：271

作者：

Kakimoto, T ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Sci, Dept Biol, Toyonaka, Osaka 5600043, Japan

来源：

ANNUAL REVIEW OF PLANT BIOLOGY | 2003年 / 54卷

关键词：

plant hormones; histidine kinase; response regulator; phosphorelay; receptor;

D O I：

10.1146/annurev.arplant.54.031902.134802

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Cytokinins are plant hormones implicated in diverse and essential processes in plant growth and development, and key genes for the metabolism and actions of cytokinins have recently been identified. Cytokinins are perceived by three histidine kinases-CRE1/WOL/AHK4, AHK2, and AHK3-which initiate intracellular phosphotransfer. The final destination of the transferred phosphoryl groups is response regulators. The type-B Arabidopsis response regulators (ARRs) are DNA-binding transcriptional activators that are required for cytokinin responses. On the other hand, the type-A ARRs act as repressors of cytokinin-activated transcription. flow phosphorelay regulate response regulators and how response regulators control downstream events are open questions and discussed in this review.

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收藏

页码：605 / 627

页数：23

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