苜蓿秋眠性调控机理的初步研究  

The regulation mechanism of the fall dormancy in alfalfa

作　　者：樊文娜[1] 严学兵[1] 王成章[1] 

机构地区：[1]河南农业大学牧医工程学院,河南郑州450002

出　　处：《草业科学》2010年第11期109-114,共6页Pratacultural Science

基　　金：国家自然科学基金项目"光敏色素B调控苜蓿秋眠的分子机理研究"(30771527)

摘　　要：苜蓿(Medicago sativa)秋眠性是苜蓿的一种生长特性,是苜蓿应对环境变化的一种特殊休眠方式,不仅和日照长度及光周期敏感度有关,它也是昼夜规律循环、光照、温度等多种因素及休眠相关基因调控共同作用的结果。国内外最新试验研究发现,植物的休眠受多种植物激素、光敏色素及其相关基因的调控。苜蓿中的植物激素、光敏色素在对苜蓿秋眠的调控中发挥着一定的作用,本研究对苜蓿秋眠性和光周期与光敏色素、植物激素的关系进行了介绍,并对休眠的机理进行了探讨。Fall dormancy is a kind of growth characteristics of alfalfa as a special dormancy way to response the environmental changes,and it is not only related to day length and photoperiod,but is related to circadian clock,light,temperature and the relevant genes.The latest studies have indicated that the dormancy phenomenon has been affected by a variety of plant hormones,phytochrome and genes regulation.The hormones and phytochrome of alfalfa plays an important role in the regulation of fall dormancy.The relationship between the fall dormancy,the photoperiod and hormones,phytochrome were reviewed,and the dormancy regulation mechanism was discussed in this paper.

关 键 词：苜蓿 休眠 秋眠性 调控机理 

分 类 号：S541.9[农业科学—作物学]