1. 首页 > 资源库 > 中文 > 植物所论文库

Auxin transport and activity regulate stomatal patterning and development

作　　者：Le J*, Liu XG, Yang KZ, Chen XL, Zou JJ, Wang HZ, Wang M, Vanneste S, Morita M, Tasaka M, Ding ZJ, Friml J, Beeckman T, Sack F*
影响因子：10.015
刊物名称：Nature Communications
出版年份：2014
卷：  期：  页码：doi:10.1038/ncomms4090

论文摘要：

Stomata are two-celled valves that control epidermal pores whose spacing optimizes shoot-atmosphere gas exchange. They develop from protodermal cells after unequal divisions followed by an equal division and differentiation. The concentration of the hormone auxin, a master plant developmental regulator, is tightly controlled in time and space, but its role, if any, in stomatal formation is obscure. Here dynamic changes of auxin activity during stomatal development are monitored using auxin input (DII-VENUS) and output (DR5:VENUS) markers by time-lapse imaging. A decrease in auxin levels in the smaller daughter cell after unequal division presages the acquisition of a guard mother cell fate whose equal division produces the two guard cells. Thus, stomatal patterning requires auxin pathway control of stem cell compartment size, as well as auxin depletion that triggers a developmental switch from unequal to equal division.
全文链接：http://www.nature.com/ncomms/2014/140127/ncomms4090/full/ncomms4090.html
版权所有 © 中国科学院植物研究所　备案号：京ICP备16067583号-24　文保网安备案号：1101080078
地址：北京市海淀区香山南辛村20号　邮编：100093
电话：010-62590835