中国水稻科学

中国水稻科学

• 研究报告 • 上一篇    下一篇

云南高原粳稻区白叶枯病菌的致病型初步鉴定

余腾琼1; 叶昌荣1; 徐福荣1; 梁斌1; 张金渝1; 王建军1; 毛孝强2; 戴陆园1，*   

  1. 1云南省农业科学院 农作物品种资源站, 云南 昆明 650205; 2云南农业大学 农学与生物技术学院, 云南 昆明 650201
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2003-07-10 发布日期:2003-07-10

Preliminary Evaluation of Pathotypes of Xanthomonas oryzae pv. oryzae in Japonica Rice Region of Yunnan Plateau

YU Teng-qiong 1; YE Chang-rong 1; XU Fu-rong 1; LIANG Bin 1; ZHANG Jin-yu 1; WANG Jian-jun 1; MAO Xiao-qiang 2; DAI Lu-yuan 1; *   

  1. （ 1Crop Genetic Resources Institute; Yunnan Academy of Agricultural Sciences; Kunming 650205; China; 2College of Agronomy and Biotechnology; Yunnan Agricultural University; Kunming 650201; China）
  • Received:1900-01-01 Revised:1900-01-01 Online:2003-07-10 Published:2003-07-10

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摘要： 利用采自云南高原粳稻区病叶分离的17份水稻白叶枯病菌株，在30份水稻品种上接种进行致病型初步鉴定。研究表明可以将17个菌株分为7个致病型（Ⅰ~Ⅶ），其中Ⅴ型菌为云南高原粳稻区的优势菌群。初步构建了一套包含7个品种（黄玉、毫糯扬、TN1、珍珠矮、IR26、南粳33、金南风）的高原粳稻白叶枯病菌的鉴别品种，明确了7个致病型在这套鉴别品种上的反应型。早生爱国3号(Xa-3)、IR1545-339(xa-5)、IRBB21（Xa-21）、扎昌龙（Xa-22t，Xa-24t）对所接种菌均表现抗病，在云南高原粳稻育种中具有较好的利用前景。

关键词: 粳稻, 白叶枯病, 致病型, 鉴别品种

Abstract: Seventeen isolates of Xanthomonas oryzae pv. oryzae collected from japonica rice grown in the Yunnan plateau region were preliminary classified into 7 pathotypes according to the pathogenic reactions on 30 rice varieties tested. The 7 pathotypes were named as pathotype Ⅰ to pathotype Ⅶ. The pathotype Ⅴ is an epidemic one in the Yunnan plateau rice region now. Seven rice varieties are considered as a set of differential varieties for bacterial blight race in the Yunnan plateau japonica rice, i.e. Kogyoku, Haonuoyang, TN1, Zhenzhu′ai, IR26, Nanjing 33 and Kinmaze . The disease reactions of the 7 pathotypes were determined on the set of differential varieties. The varieties Wase Aikoku 3 (Xa-3), IR1545-339(xa-5), IRBB21(Xa-21), and Zhachanglong (Xa-22t, Xa-24t) were resistant to all strains tested, and useful for resistance breeding in Yunnan Province.

Key words: japonica rice, bacterial blight, pathotype, differential variety