禾本科植物单锌指家族基因对逆境应答的研究进展  

Advances in stress response of DNA binding with one finger transcription factor family genes in graminaceous plants

作　　者：刘文婷[1] 马田田[1] 周春菊[1] 藏潇 李浪金 张宝军[1] 杜威[1] 张炜丽[1] 陈坤明[1] 

机构地区：[1]西北农林科技大学生命科学学院,陕西杨凌712100

出　　处：《生物工程学报》2016年第5期541-553,共13页Chinese Journal of Biotechnology

基　　金：国家自然科学基金(No.31270299);陕西省自然科学基金(No.K3320215182);高校基本科研业务费基金项目(No.Z1090201430)资助~~

摘　　要：转录调控是植物生长发育、逆境反应、信号转导、抗病性等一系列基因表达的最主要调控形式,转录因子是参与基因转录水平调控过程的重要反式因子。单锌指(DNA binding with one finger,DOF)转录因子是植物特有的一类转录因子,包含一个C_2-C_2锌指结构,其N-末端保守的DOF结构域是能与DNA和蛋白相互作用的双重功能域,在植物生长发育过程中参与多种生物学过程。尽管已有研究报道DOF家族基因参与植物抗逆响应,但其在禾谷类重要粮食作物中的作用机制还极不明确。本文通过对禾本科植物DOF家族基因系统进化分析及组织表达和诱导表达分析,综述了DOF家族基因参与植物胁迫应答方面的相关研究进展,为进一步深入了解禾本科植物抗逆机制提供重要参考。Transcription factor is a key trans-acting factor to mediate stress response by regulating gene expression. Plants have developed a series of mechanisms to modulate development, stress response, signaling and disease resistance at transcription level. DNA binding with one finger（DOF）, containing one C2-C2 zinc finger domain, is a special plant transcription factor. Specifically, the conserved domain at N-terminus of DOF has multiple functions, including interacting with DNA and protein, which could be involved in plant development and stress response. Although many DOF family genes are characterized in plant stress response, it is not clear if DOF genes have functions in cereal plants. In the present paper, the role of DOF family genes on cereal plants were discussed based on a comprehensive phylogenetic relationship analysis, expression profiles in different tissues and various environmental conditions. The results obtained here will provide an important reference for further understanding the mechanism of gramineous crops in stress resistance.

关 键 词：转录因子 抗逆性 单锌指家族基因 禾本科植物 

分 类 号：Q943.2[生物学—植物学]