Phosphate starvation signaling:: a threesome controls systemic Pi homeostasis

被引：90

作者：

Doerner, Peter ^{[1
]}

机构：

[1] Univ Edinburgh, Sch Biol Sci, Inst Mol Plant Sci, Edinburgh EH9 3JH, Midlothian, Scotland

来源：

CURRENT OPINION IN PLANT BIOLOGY | 2008年 / 11卷 / 05期

关键词：

D O I：

10.1016/j.pbi.2008.05.006

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Systemic signaling between roots and shoots is required to maintain mineral nutrient homeostasis for optimal metabolism under varying environmental conditions. Recent work has revealed molecular components of a signaling module that controls systemic phosphate homeostasis, modulates uptake and transport in Arabidopsis. This module comprises PHO2, a protein that controls protein stability, the phloem-mobile microRNA-399 and a ribo-regulator that squelches the activity of miR399 towards PHO2 by a novel mechanism. This advance is a significant step for the design of future rational approaches to improve crop phosphate use efficiency.

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页码：536 / 540

页数：5

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