《植物生理学报》 2016, 52(4): 394-400

高等植物6-磷酸海藻糖信号调控研究进展

张雯, 王宇斐, 郭延平^*

西北农林科技大学园艺学院, 陕西杨凌712100

通信作者：郭延平；E-mail: ypguo@nwsuaf.edu.cn

摘　要：

6-磷酸海藻糖(T6P)在植物体内广泛分布, 对植物的生长发育起着重要的调节作用, 其信号途径伴随植物胚胎发育直至衰老的整个过程。T6P是海藻糖的代谢前体物质, 其主要通过抑制蔗糖非酵解相关激酶1 (SnRK1)的催化活性, 进而调控植物生长代谢, 故称为T6P/SnRK1信号。在T6P/SnRK1信号调控植物代谢过程中, 转录因子bZIP11、己糖激酶HXK及PIF信号途径也参与到植物T6P/SnRK1信号调控路径。

关键词：植物生长; 逆境; 蔗糖非酵解相关激酶1 (SnRK1); 海藻糖; 6-磷酸海藻糖

收稿：2016-01-14   修定：2016-03-07

资助：国家科技支撑计划(2014BAD16B06)。

Review on crosstalk regulation involving in trehalose-6-phosphate signal in plant

ZHANG Wen, WANG Yu-Fei, GUO Yan-Ping^*

College of Horticulture, Northwest Agriculture and Forestry University, Yangling, Shaanxi 712100, China

Corresponding author: GUO Yan-Ping; E-mail: ypguo@nwsuaf.edu.cn

Abstract:

T_rehalose-6-phosphate (T6P) is an essential signaling metabolite which is involved in the regulation of plant growth and development. Developmental processes are regulated by T6P that range from embryo development to leaf senescence. T6P is a substance of trehalose metabolism, and regulates metabolism of plant growth mainly by inhibiting sucrose non-fermenting related kinase-1 (SnRK1) activity, which is called T6P/SnRK1 signal. The transcription factor bZIP11, HXK and PIF signal pathway has been identified as a new player in the T6P/SnRK1 regulatory pathway.

Key words: plant development; stress; sucrose non-fermenting related kinase-1 (SnRK1); trehalose; trehalose-6-phosphate; review.