《植物生理学报》 2021, 57(2): 337-346

SHR调控植物根系发育研究进展

姜颖茹¹，李祖亮³，董寰^1,2,3,*

¹河南农业大学生命科学学院, 郑州450002；²中国科学院植物研究所, 植物分子生理学重点实验室, 北京100093；³河南大学生命科学学院, 棉花生物学国家重点实验室, 植物逆境生物学重点实验室, 河南开封475004

通信作者：董寰；E-mail: donghuan8626@163.com

摘　要：

根系作为植物体重要器官之一, 具有高度发育可塑性, 植物体可以通过根形态和生理改变对环境胁迫或外源植物生长调节剂作出响应。转录因子SHORT-ROOT (SHR)在根的辐射模式和根顶端分生组织的形成过程中发挥重要作用。本文从SHR参与的信号转导通路以及SHR与植物激素共同调控根系发育过程等方面进行综述, 有助于理解植物细胞发育和命运决定这一重大理论问题, 并将为运用基因工程技术改善作物的根系构型, 增强植物环境适应能力提供理论基础。

关键词：SHORT-ROOT; 信号转导; 根系发育; 环境胁迫

收稿：2020-04-07   修定：2020-10-08

资助：国家自然科学基金青年科学基金(31900241)和中国博士后 科学基金(2019M652521)

Advances in SHORT-ROOT regulation of plant root development

JIANG Yingyu¹, LI Zuliang³, DONG Huan^1,2,3,*

¹College of Life Sciences, Henan Agricultural University, Zhengzhou 450002, China 2; ²Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; ³State Key Laboratory of Cotton Biology, Key Laboratory of Plant Stress Biology, College of Life Sciences, Henan University, Kaifeng, Henan 475004, China

Corresponding author: DONG Huan; E-mail: donghuan8626@163.com

Abstract:

The root system, as one of the essential organs of plants, has a high degree of developmental plasticity. Plants can respond to environmental stress or exogenous plant growth regulators through changes in the root morphology and physiological. The transcription factor SHORT-ROOT (SHR) plays an important role in the radiation pattern of roots and the formation of root apical meristems. This article reviews the SHR-regulated root development through SHR signal transduction network and hormonal pathways, which is helpful for understanding the major theoretical issue of plant cell development and fate determination, and provides a theoretical basis for using genetic engineering technology to improve the root system architecture of crops and enhance the environmental adaptability of plants.

Key words: SHORT-ROOT; signal transduction; root development; environmental stress