植物阶段性抗性的表现形式及分子机制  

The Forms and Molecular Mechanism of Age-related Resistance in Plants

作　　者：薛彦久[1,2] 钱凤芹[2,3] 常泓[1] 谢先芝[2,3] 

机构地区：[1]山西农业大学生命科学学院,太谷030801 [2]山东省农业科学院高新技术研究中心,济南250100 [3]农业部黄淮海作物遗传改良与生物技术重点实验室,济南250100

出　　处：《分子植物育种》2010年第4期771-775,共5页Molecular Plant Breeding

基　　金：国家自然科学基金(30870192)资助

摘　　要：为了更好地适应多变的环境,植物自身形成了许多复杂的防御机制。其中,阶段性抗性是受植物发育调控产生抗性的一种防御机制,它可能是特异性的,也可能是广谱性的。不论是何种形式,抗性一旦被获得,它就能在植物发育的整个过程中保持,因此这种抗性机制在农业生产中具有重要的应用前景。植物病原菌诱导的植物防御反应可人为地划分为三个连续步骤:识别-信号转导-防御相关基因的表达,植物发育对阶段性抗性的影响可能发生在这三个步骤的任何一个。在本文中,我们总结了植物阶段性抗性的表现形式、分子机制以及最新进展。In order to better adapt to a changing environment,plants themselves have developed many complex defense mechanisms.Among them age-related resistance（ARR） is one defense mechanism in which resistance is regulated by plant development.Age-related resistance can be specific or broad-spectrum.In both cases,once being induced,resistance persists in plant throughout its whole developmental process.Therefore,the mechanism for ARR has an important application prospect in agricultural production.The defense response induced by pathogen can be deliberately divided into three sequential steps of perception-transduction-expression of defense-related genes;effects of plant development on ARR may happen at each of these steps.In this review,we summed up the forms,molecular mechanism as well as the latest progresses about ARR.

关 键 词：阶段性抗性 植物发育 防御反应 分子机制 

分 类 号：Q945.78[生物学—植物学]