中国稻米

中国稻米

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2015年黑龙江省水稻产区稻瘟病菌生理小种鉴定

  1. 东北农业大学农学院，哈尔滨 150030
  • 出版日期:2017-09-20 发布日期:2017-09-20
  • 通讯作者: 张忠臣: zzcneau@neau.edu.cn
  • 基金资助:
    科技部“十三五”科技支撑计划项目（2015BA D23B05-11）；国家重点研发计划（2016YFD0300604-4）；东北农业大学学科团队建设项目；黑龙江省粮食产能提升协同创新中心项目

Identification of the Physiological Races of Rice Blast Fungus in Part Areas of Heilongjing Province in 2015

  • Online:2017-09-20 Published:2017-09-20

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摘要： 稻瘟病是寒地水稻种植区的主要病害之一。为明确黑龙江省水稻主产区稻瘟病菌生理小种的种群结构及变化趋势，利用7个中国统一鉴别寄主对2015年在黑龙江省部分稻作区采集并分离得到的99个稻瘟病单孢菌株进行鉴定，共鉴定出6个群17个生理小种。其中，ZA和ZD为黑龙江省水稻产区的主要优势菌群，出现频率分别为60.61%、18.18%；ZA49为优势小种，出现频率为23.23%，其次是ZD1，出现频率为18.18%，再次是ZA1，出现频率为16.16%。不同地区生理小种的类型及其组成不同。

关键词: 水稻, 稻瘟病菌, 生理小种, 分离与鉴定

Abstract: Rice blast is one of the important disease in cold region. To identify the population structure and trends of rice physiological races in part areas of Heilongjiang Province, 7 differential hosts of China were used to analyze the physiological races collected from the counties of Heilongjiang Province in 2015. The results showed that 99 blast isolates were obtained and categorized into 6 groups with 17 races, and that ZA and ZD were the dominant groups, with the average frequency of 60.61% and 18.18%, respectively. The race ZA49 was the dominant race with the average frequency of 23.23%; secondly, the average frequency of the race ZD1 was 18.18%; moreover, the average frequency of the race ZA1 was 16.16%. The types and compositions of the physiological races were varied in different rice areas.

Key words: rice, Pyricularia oryzae, physiological race, isolation and identification

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