拟南芥ABI5亚家族转录因子——回顾与展望

The ABI5 subfamily transcription factors in Arabidopsis thaliana:retrospect and prospect

植物脱落酸不敏感蛋白5 (abscisic acid-insensitive 5,ABI5)在ABA信号通路发挥重要作用。在拟南芥中,有8个与ABI5高度同源的成员,它们都是碱性亮氨酸拉链类型(basic leucine zipper,bZIP)转录因子,被共同归为ABI5亚家族(ABI5 subfamily)。ABI5亚家族成员在种子成熟、种子萌发、开花时间、根的生长和逆境响应等植物生长发育过程中起着重要作用。本文在简要回顾ABI5亚家族发现过程的基础上,综述了近年来该家族基因编码的转录因子的结构与功能关系、分子进化与基因组分布、组织特异性表达和相互作用蛋白质等方面的研究工作。

Plant abscisic acid insensitive 5(ABI5) protein plays an important role in ABA signaling pathway.In Arabidopsis thaliana,there are eight highly homologous members of ABI5,all of which are basic leucine-zipper type transcription factors and are collectively grouped into the ABI5 subfamily.ABI5 subfamily members play important roles in plant growth and development,such as seed maturation,germination,flowering timing,root growth and stress responses.Based on a brief retrospect of the discovery process of the ABI5 subfamily,this paper reviewed the recent researchers on the relationships between structure and function,molecular evolution and genome distribution,tissue-specific expression and interacting proteins of the ABI5 subfamily.