期刊
PLANT SIGNALING & BEHAVIOR
卷 5, 期 7, 页码 896-898出版社
TAYLOR & FRANCIS INC
DOI: 10.4161/psb.5.7.12094
关键词
cytokinin; two-component signaling; nuclear-cytosolic movement; histidine phosphotransfer; plant hormones
资金
- United States Department of Agriculture
- Department of Energy
- National Science Foundation
Cytokinins are a class of mitogenic plant hormones that influence shoot and root growth, vascular and photomorphogenic development, leaf senescence, and many other aspects of plant growth and development. The Arabidopsis histidine phosphotransfer proteins (AHPs) play an important role in cytokinin signaling by bridging the perception of cytokinins by plasma-membrane receptors to the activation of cytokinin-responsive transcription factors. Based on previous microscopic observations, a model was developed in which the AHPs were thought to relocalize from the cytosol into the nucleus in response to exogenous cytokinin. However, analysis and quantification of the intracellular distribution of AHPs in both protoplasts and intact transgenic plants revealed that the subcellular localization of the AHPs is persistently nucleo-cytosolic and non-responsive to the state of the cytokinin response pathway. Here, we review and extend these findings and discuss their implications.
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