近十年广东稻瘟病菌生理小种变化分析  

Analysis of physiological races of Magnaporthe oryzae in Guangdong during recent decade

作　　者：钟宝玉 黄德超 朱小源[2] 陈玉托 邹寿发 杨伟新 赖信红 ZHONG Baoyu1, HUANG Dechao1, ZHU Xiaoyuan1 , CHEN Yutuo1 , ZOU Shoufa1, YANG Weixin1, LAI Xinhong1(1. Agricultural Pest Precaution and Management Center of Guangdong Province, Guangzhou 510500, China; 2. Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, Chin)

机构地区：[1]广东省农业有害生物预警防控中心,广东广州510500 [2]广东省农科院植物保护研究所,广东广州510640

出　　处：《仲恺农业工程学院学报》2018年第1期24-29,共6页Journal of Zhongkai University of Agriculture and Engineering

摘　　要：从2006-2015年近10年间收集的来自广东各地的7 225份穗颈瘟样本中分离出稻瘟病菌(Magnaporthe oryzae)单孢菌株3 690个,经接种到中国水稻稻瘟病菌鉴别品种上共鉴定出8群51个生理小种,其中以ZB群、ZC群和ZG群为主要优势种群,而ZB群出现频率最高,为48.44%~75.35%;病菌生理小种以ZB13、ZB15、ZC15、ZC13和ZG1为主要优势小种,其中ZB13出现频率最高,为32.47%.A total of 3, 690 isolates of Magnaporthe oryzae were collected from Guangdong province during 2006 -2015 and were identified. The results showed that 8 groups and 51 physiological races were identified by inoculating them onto Chinese differential varieties of rice. Among them, ZB, ZC and ZG were the dominant groups, whereas ZB group showed the highest frequency with an average frequency between 48.44% and 75.35% with regard to the physiological race, ZB13, ZB15, ZC15, ZC13 and ZG1 were the dominant races, among them, ZB13 had the highest frequency of 32. 47%.

关 键 词：稻瘟病 稻瘟病菌(Magnaporthe oryzae) 生理小种 变化动态 

分 类 号：S435.111[农业科学—农业昆虫与害虫防治]