《植物生理学报》 2015, 51(1): 21-28

赤霉素对拟南芥主根分生区和伸长区的调控

石英¹, 韩毅强², 郑殿峰^1,*, 冯乃杰¹, 刘涛¹

黑龙江八一农垦大学¹农学院, ²生命科学技术学院, 黑龙江大庆163319

通信作者：郑殿峰；E-mail: zdffnj@263.net；Tel: 0459-6819181

摘　要：

赤霉素是一类重要的植物激素, 在植物整个生长发育的调控过程中起重要作用。近年来, 人们发现赤霉素对拟南芥主根生长存在促进作用。本文从根系的解剖结构、赤霉素的源靶部位、促进作用的机理、赤霉素信号转导途径以及与其他激素的关系等方面, 综述了赤霉素对拟南芥主根分生区和伸长区的影响。

关键词：赤霉素; 拟南芥; 根系; 信号转导

收稿：2014-12-02   修定：2014-12-25

资助：国家自然科学基金项目(31271652和31301708)和黑龙江八一农垦大学研究生创新科研项目(YJSCX2014-Y07)。

The Regulation of Gibberellins in the Meristem and Elongation Zone of the Primary Root in Arabidopsis thaliana

SHI Ying¹, HAN Yi-Qiang², ZHENG Dian-Feng^1,*, FENG Nai-Jie¹, LIU Tao¹

¹ College of Agronomy, ² College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, China

Corresponding author: ZHENG Dian-Feng; E-mail: zdffnj@263.net; Tel: 0459-6819181

Abstract:

Gibberellins (GAs) are a class of important phytohormone, which play significant roles in regulating the plant growth and development during the whole life. Recently, it has been discovered that GA could promote the primary root growth in Arabidopsis thaliana. In this paper, the roles of GA in the meristem and elongation zone of the root have been reviewed from the following aspects: the anatomical structure of root, the derived and targeted site of GA, the mechanism of this facilitation, the GA signal transduction and the relationships with other hormones.

Key words: gibberellins (GAs); Arabidopsis thaliana; root; signal transduction