WRKY转录因子在植物逆境响应中的作用

doi:10.13560/j.cnki.biotech.bull.1985.2020-1481

摘要/Abstract

摘要：

WRKY转录因子（transcription factors,TFs）是植物中最重要的转录因子家族之一。其含有由60个氨基酸组成的保守WRKY结构域,该结构域的核心序列WRKYGQK可以与启动子区W-box[（T）（T）TGAC（C/T）]特异结合,从而调节启动子中含W-box元件的调节基因或功能基因的表达。当植物遭受逆境胁迫时,WRKY转录因子参与相关的转录重编程的调控过程,在植物生长发育、物质代谢及环境适应中具有重要作用。本文就WRKY转录因子的发现、结构特点、分类、调控、表达模式及近年来在植物响应非生物（干旱、高温、低温、高盐碱、营养缺失等）和生物（病、虫）胁迫中的作用研究进展进行综述,并对未来研究方向加以展望。

关键词: WRKY转录因子, 生物胁迫, 非生物胁迫, 顺式作用元件, W-box

Abstract:

WRKY transcription factors（TFs）are one of the most important transcription factor families in plants. It contains a conserved WRKY domain composed of 60 amino acids. The core sequence WRKYGQK of the domain can specifically bind to W-box[（T）（T）TGAC（C/T）]in the promoter region of target genes,thus regulating the expressions of regulatory genes and/or functional genes containing W-box elements in the promoters. When plants are exposed to stresses,WRKY transcription factors are involved in the regulation of the related transcription reprogramming,and play an important role in plant growth and environmental adaptation. This paper reviews the discovery,structural characteristics,classification,regulation,and expression patterns of WRKY transcription factors,as well as the research progress in plant response to abiotic（such as drought,high temperature,low temperature,high salinity,nutrient deficiency and so on）and biological（such as disease and pest）stresses in recent years,and prospects the future research direction.

Key words: WRKY transcription factors, biological stress, abiotic stress, cis-acting element, W-box

张桐, 李智强, 伍国强. WRKY转录因子在植物逆境响应中的作用[J]. 生物技术通报, 2021, 37(10): 203-215.

ZHANG Tong, LI Zhi-qiang, WU Guo-qiang. Role of WRKY Transcription Factor in Plant Response to Stresses[J]. Biotechnology Bulletin, 2021, 37(10): 203-215.

图/表 1

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