植物bZIP参与胁迫应答调控的最新研究进展  

The Latest Research Progress on the Stress Responses of bZIP Involved in Plants

作　　者：崔荣秀 张议文 陈晓倩 谷彩红 张荃[1] CUI Rong-xiu;ZHANG Yi-wen;CHEN Xiao-qian;GU Cai-hong;ZHANG Quan(Shandong Provincial Key Laboratory of Plant Stress,College of Life Sciences,Shandong Normal University,Ji’nan 250014)

机构地区：[1]山东师范大学生命科学学院山东省植物逆境重点实验室,济南250014

出　　处：《生物技术通报》2019年第2期143-155,共13页Biotechnology Bulletin

基　　金：国家转基因专项(2018ZX0800910B);山东省自然科学基金项目(ZR2014CM041);山东师范大学大学生创新创业训练计划项目(201710445127)

摘　　要：bZIP蛋白包含两个结构域,即高度保守、与DNA相结合的碱性区域,以及多样性的亮氨酸拉链,为植物中最大的转录因子家族之一。bZIP以同源或异源二聚体的形式,通过与顺式作用元件G-box、C-box、ABRE、LTRE和BoxII相结合,调控下游相关基因如ERF5、KIN1、CORl5A、COR78、CYP707A1、CYP707A3、ADS和CYP71AV1的表达。植物bZIP参与调控花的发育、种子成熟、休眠和衰老等诸多生物学过程,在盐害、干旱、冷害、渗透胁迫、机械损伤等非生物胁迫以及ABA信号的响应中担任重要作用。另外,bZIP通过水杨酸、茉莉酸及ABA信号转导通路,参与植株对虫害、病原体感染等生物胁迫的应答调控。重点综述了bZIP转录因子的结构特点、分类特征和作用机理,并对植物bZIP在生物和非生物胁迫应答中的最新研究进展进行了全面的介绍。该综述旨为后续深入探究bZIP转录因子的胁迫相关功能提供理论依据和研究思路。bZIP(basic leucine zipper)protein contains two domains,a highly conserved basic region which binds to DNA,and a diversified leucine zipper,and is one of the largest transcription factor(TF)families in plants.The homo-dimers and hetero-dimers of bZIP regulates the expressions of downstream-related genes such as ERF5,KIN1,CORl5A,COR78,CYP707A1,CYP707A3,ADS,and CYP71AV1 through binding to cis-elements G-box,C-box,ABRE,LTRE,and BoxII.Plant bZIPs are involved in the regulation of flower development,seed maturation,dormancy and senescence,and play an important role in ABA signal response and abiotic stresses such as salt damage,drought,chilling injury,osmotic stress and mechanical damage.Furthermore,bZIP is involved in the responses and regulations to biological stresses such as insect infestation and pathogen infection via salicylic acid,jasmonate and ABA signaling pathways.This paper mainly summarizes the structure characteristics,classification features and the mechanisms of bZIP,as well as the latest research progress on the responses of bZIP to biotic and abiotic stresses in plants.This review provides a theoretical basis and research ideas for further exploring the stress-related function of bZIP transcription factor.

关 键 词：BZIP 非生物胁迫 生物胁迫 应答调控 信号通路 

分 类 号：Q943.2[生物学—植物学]