摘要
低温、干旱、高盐等非生物胁迫能够严重影响植物的生长及作物的产量。最近发现了许多调控多种与逆境相关基因表达的转录因子,其中DREBs类转录因子能够通过与含有DRE/CRT顺式作用元件的抗逆相关基因启动子区相互作用,进而调控一系列抗逆基因的表达,使植物品质得到综合改良从而提高植物对非生物胁迫耐受力。文章通过对DREBs的结构、表达调控、作用方式及机理进行总结,并结合其在植物胁迫信号通路中的作用以及提高转基因植株胁迫耐受性的最新研究成果加以综述,并对其在农业生产中的应用前景进行展望。
Abiotic stresses such as cold, drought and high salinity are common adverse environmental conditions that seriously influence plant growth and crop productivity worldwide. Some transcription factors (TFs) have been isolated and verified recently to play roles under abiotic stresses. Among them, the TF of DREB (Dehydration responsive element binding) can therefore regulate the expression of many stress-inducible genes in plants and play a critical role in improving abiotie stress tolerance of plants by interacting with specific cis-acting element named DRE/CRT, which is present in the promoter region of various abiotic stress-related genes. In this review, we summarized the current knowledge of DREBs in the structural and functional characters with emphasis on the regulation and mechanisms of DREBs on plant development, as well as new research approaches and complexity of the signal transduction pathway of DREBs. The practical and application value of DREBs in crop improvement engineering was also discussed.
出处
《遗传》
CAS
CSCD
北大核心
2009年第3期236-244,共9页
Hereditas(Beijing)
基金
山东省农科院博士科研启动基金项目(编号:2007YBS008)资助
作者简介
张梅(1983-),女,硕士,专业方向:发育生物学。Tel:15806417594;E—mail:200200139@163.com
通讯作者:刘炜(1975-),女,博士,副研究员,研究方向:植物转录因子功能、植物生长发育调节。Tel:0531-83179572;E-mail:wheiliu@163.com