水稻白叶枯病抗性基因Xa21的分子生物学研究进展  

Advances of Molecular Biology Researches on Rice Bacterial Blight Disease Resistance Gene Xa21

作　　者：陈小林[1] 颜群[1] 高利军[1] 高汉亮[1] 

机构地区：[1]广西作物病虫害生物学重点实验室广西农业科学院植物保护研究所,南宁530007

出　　处：《生物技术通报》2014年第1期8-14,共7页Biotechnology Bulletin

基　　金：国家科技支撑计划子课题(2012BAD19B03);国家现代农业产业技术体系广西(水稻)创新团队项目;广西作物病虫害生物学重点实验室基金项目(13-051-47-ST-3);广西"特聘专家"专项经费资助

摘　　要：由黄单胞杆菌水稻致病变种Xanthomonas oryzae pv.oryzae(Xoo)引起的白叶枯病是水稻重要细菌性病害之一。迄今,已有7个水稻白叶枯病抗性基因被克隆。Xa21是第一个被克隆的白叶枯病抗性基因,因具有广谱抗性而受到广泛的关注。对Xa21的发现、定位及克隆、表达特征、编码产物XA21的生化特性、作用与调控以及XA21介导的免疫反应模式等方面的研究结果进行综述,并对今后的研究方向进行展望。The bacterial blight of rice caused by Xanthomonas oryzae pv. oryzae （ Xoo ） is one of the most destructive diseases in the world. Up to now, 7 bacterial blight resistance genes have been cloned. Xa21 is the first bacterial blight disease resistance gene cloned from rice and it has drawn great attention because of its broad spectrum resistance against Xoo. This paper briefly reviewed the discovery, mapping, cloning, expression properties of Xa2 l, biochemical properties, action and regulation of XA21 and XA21-mediated immunity. Future perspective on Xa21-related research were also discussed.

关 键 词：水稻 白叶枯病 抗性基因 XA21 

分 类 号：S511[农业科学—作物学]