《植物生理学报》 2011, 47(5): 437-442

DREB转录因子在植物非生物胁迫中的作用及应用研究

冯军, 郑彩霞*

北京林业大学生物科学与技术学院, 北京100083

通信作者：郑彩霞；E-mail: zhengcx@bjfu.edu.cn；Tel: 010- 62337717

摘　要：

转录因子也称反式作用因子, 是能够与真核生物基因启动子区域中顺式作用元件发生特异性相互作用的DNA结合 蛋白。DREB转录因子作为植物特有的转录因子, 通过与DRE调控元件特异结合,能促进许多与低温、高盐和干旱相关基 因的表达。本文综述了近年DREB转录因子的研究进展, 并对其结构和生物学功能、表达调控和信号传递途径以及DREB 基因在改良植物抗逆胁迫中的应用进行了讨论, 同时对该领域的发展前景进行了展望。

关键词：转录因子; DREB; 非生物胁迫

收稿：2010-12-06   修定：2011-04-23

Research and Application Prospect of DREB Transcription Factor in Plant Abiotic Stress Resistance

FEN Jun, ZHENG Cai-Xia*

College of Biological Science and Technology, Beijing Forestry University, Beijing 100083, China

Corresponding author: ZHENG Cai-Xia; E-mail: zhengcx@bjfu.edu.cn; Tel: 010- 62337717

Abstract:

Transcription factors are DNA-binding proteins that interact with cis-elements in the promoter of eukaryotic genes. As a newly discovered type transcription factor of plant, DREB, specifically recognize DRE, could induce the expression of some high-salinity low-temperature and drought-related genes. In this paper, the research progress on DREB in recent years was reviewed, the structure and biological function of DREB, expression regulation and signal transduction pathways, as well as the application of DREB genes in the stress tolerant improvement of plant were discussed, meanwhile, the future prospective in this field is also discussed here.

Key words: transcription factors; DREB; abiotic stress