摘要
WRKY转录因子具有特殊的锌指结构,是植物重要的转录调节因子家族之一。其主要存在于高等植物中,参与植物体生物与非生物胁迫反应,调节植物发育与诸多代谢相关基因的表达。脱落酸是一种普遍存在于植物中具有倍半萜结构的激素,既可作为平衡植物内源激素及生长活性物质代谢的关键因子,又可作为植物胁迫反应的重要信号分子。有研究表明,脱落酸代谢循环受WKRY转录因子的精细调控。为深入了解上述调控机制,本文综述了WRKY转录因子在植物脱落酸信号转导中起到的关键作用。
WRKY transcription factors, which contain the specific zinc finger domains, are one of the most imp- ortant transcription regulator families in plants. They mainly exist in higher plants, participating in biotic and abiotic stress responses, playing crucial rules during plant development and regulating the metabolic genes expressions. Abscisic acid （ABA） is one kind of common plant phytohormone which contains the sesquiterpenes structure. It can be the key factor in balancing plant endogenous hormones and metabolism of active substance; meantime it exists as the crucial signaling molecule of plant stress responses as well. Evidence shows that ABA cycling is fine modulated by WRKY transcriptional factors. To well understanding the mechanism of WRKY signaling pathway, this review summarized the key regulating functions of WRKY transcription factors in ABA- responsive signaling networks of plants.
出处
《分子植物育种》
CAS
CSCD
北大核心
2014年第2期404-410,共7页
Molecular Plant Breeding
基金
国家自然科学基金(30800082
30730078)资助
