植物AT-hook转录因子及其生物学功能  

Plant AT-hook transcription factors and their biological functions

作　　者：陈卫芳 李宁[1] 陈磊夫[1] 袁伟玲[1] CHEN Weifang;LI Ning;CHEN Leifu;YUAN Weiling(Hubei Key Laboratory of Vegetable Germplasm Enhancement and Genetic Improvement,Institute of Economic Crop,Hubei Academy of Agricultural Science,Wuhan 430064,China)

机构地区：[1]湖北省农业科学院经济作物研究所,蔬菜种质创新与遗传改良湖北省重点实验室,武汉430064

出　　处：《植物生理学报》2024年第12期1717-1725,共9页Plant Physiology Journal

基　　金：国家自然科学基金(3220181270);湖北省自然科学基(2023AFB695);湖北省重点研发计划项目(2022BBA-0060)。

摘　　要：AHL(AT-hook Motif Nuclear Localized)是一类古老的转录因子,参与植物的多个生物学过程。它包含AT-hook基序和PPC结构域,其中AT-hook基序可以被分为Ⅰ、Ⅱ、Ⅲ三种类型。AHL可以与DNA的富AT区域结合,或者通过影响其他转录因子与DNA的结合从而参与调控。本文综述了AHL转录因子的结构特征,以及该基因家族在植物器官发育、胁迫响应、激素响应和多种代谢过程中的功能,为全面理解该转录因子家族的作用机理、功能及其在作物育种的应用提供依据。AT-hook Motif Nuclear Localized(AHL)is an ancient transcription factor involved in multiple biological processes in plants.It contains an AT-hook motif and a PPC domain,with the AT-hook motif being classified into three types:I,II,and III.AHL can bind to AT-rich regions of DNA or participate in regulation by affecting the binding of other transcription factors to DNA.This review discusses the structural characteristics of AHL transcription factors and their functions in plant organ development,stress response,hormone responses,and various metabolic processes,providing a basis for a comprehensive understanding of the mechanisms,functions and applications in crop breeding of this transcription factor family.

关 键 词：AHL AT-HOOK PPC结构域 转录因子 胁迫响应 

分 类 号：Q943.2[生物学—植物学]