锌指蛋白转录因子Di19参与调控大豆干旱响应的研究进展

Research advances of zinc finger protein transcription factor Di19 in regulation of soybean responding to drought stress

干旱是人类面临的最主要自然灾害之一,是影响农作物生产最主要的环境因素。锌指蛋白指含有锌离子、具有手指状结构域的一类蛋白质,是植物中发现种类最多、调控作用最显著的一类转录因子,在植物干旱响应中发挥重要作用。Di19是最新发现的一类小分子锌指蛋白,其含有两个C2H2型锌指结构域,受干旱和高盐诱导,在植物的抗旱响应中起积极作用。大豆根系不发达,需水量多,对干旱敏感,水分亏缺是制约其产量提高和品质提升的最重要环境因子。本文评述了大豆耐旱性研究现状,锌指蛋白及其家族最新成员Di19在大豆耐旱性响应过程中发挥的作用,以期为大豆耐旱性改良提供参考。

Drought is one of the most serious natural disasters faced by human beings,and also the most important environmental factor affecting crop production.Zinc finger protein refers to a class of proteins containing zinc ion and finger-like domains.It is the most common type of transcription factor found in plants and plays the most important role in plant drought response.Di19 is a newly discovered small zinc finger protein containing two C2H2 type zinc finger domains,which is induced by drought and high salt,and plays an active role in plant drought response.Soybean roots are underdeveloped,require more water,sensitive to drought,and water deficit is the most important environmental factor that restricts their yield and quality.In this paper,the research status of soybean drought tolerance,the role of zinc finger protein and its newest member Di19 in drought tolerance response of soybean were reviewed in order to provide reference for drought tolerance improvement of soybean.