油菜素甾族化合物对植物干旱适应性的影响及调控机理  

Efects of brassinosteroids on plant drought adaptability and their regulatory mechanism

作　　者：熊俊兰[1] 孔海燕[1] 白雪[1] 谭瑞玥[1] 熊友才[1] 陈宏彬[2] 

机构地区：[1]兰州大学生命科学学院,草地农业生态系统国家重点实验室,兰州730000 [2]兰州城市学院城市生态与环境生物技术中心,兰州730070

出　　处：《兰州大学学报（自然科学版）》2013年第5期658-665,共8页Journal of Lanzhou University(Natural Sciences)

基　　金：国家自然科学基金项目(31070372;30960060;31160118);高等学校博士学科点专项科研基金项目(20110211110022)

摘　　要：总结了油菜素甾族化合物对植物渗透系统、保水性、抗氧化系统及生长和发育的生理效应的最新进展,并概括了这些现象的生理和分子调控机制.综述了BR调节植物干旱适应性的基因应答路径,这些路径与其他主要干旱胁迫激素(如脱落酸)之间存在复杂的"信号交互"效应,共同对植物生长发育起到系统调控作用.该方面的创新研究将是BR在生产应用上取得突破的理论基础.Summarized was the recent progress in the study of the physiological effects of brassinosteroids on osmotic adjustment, water conservation, anti-oxidation system, growth and development in plants, as well as their physiological and molecular mechanisms. Gene signaling pathways of BR regulating plant drought adaptability were particularly addressed. It was found that there existed a complex interaction of ＂cross talk＂ between these pathways and other major drought hormones such as abscisic acid. It can be argued that the innovative research in this field will serve asa theoretical basis for achieving breakthroughs in the practical application of BR.

关 键 词：油菜素甾族化合物 干旱适应性 调控机制 信号交互 

分 类 号：Q945.79[生物学—植物学] Q946.885