云南省马铃薯晚疫病菌生理小种的组成与分布  

Composition and Distribution of Physiological Race of Phytophthora infestans in Yunnan Province

作　　者：杨艳丽[1] 胡先奇[1] 鲁绍凤[1] 罗文富[1] RYU K Y 肖浪涛[2] 

机构地区：[1]云南省植物病理重点实验室/云南农业大学植物保护学院,昆明650201 [2]湖南省植物激素与生长发育重点实验室/湖南农业大学生物科学与技术学院,长沙410128

出　　处：《华中农业大学学报》2007年第3期297-301,共5页Journal of Huazhong Agricultural University

基　　金：云南省科技攻关项目(2002NG09)资助

摘　　要：利用11个分别含有单抗性基因R1～R11及1个不含抗性基因的1套鉴别寄主,对2003～2005年采自云南省10个县市26个采集点的117个马铃薯晚疫病菌的菌株进行生理小种鉴定。结果表明：共鉴定出26个菌株的生理小种,其中优势小种为3.4.6.8.10.11,占所测菌株的28.69%,主要分布在寻甸、丽江、昆明;其次是3.4.10,发生频率为13.11%,主要分布在镇雄;然后是3.10,发生频率为10.66%,主要分布在宣威。117 isolates came from potato plant of 26 collection areas in 10 counties and cities in Yunnan Province were tested with 11 mono-gene R1～R11 potato clones of potato late blight differential host. The results showed that there are 26 race in Yunnan Province and the dominant race were 3.4. 6. 8. 10. 11 with frequency of 28. 69%. They were distributed in Xundian, Lijiang, and Kunming; 3. 4. 10 with frequency of 13.11% was distributed in Zhenxiong; 3.10 with frequency of 10. 66% was distributed Xuanwei.

关 键 词：致病疫霉 马铃薯晚疫病 生理小种 

分 类 号：S432.44[农业科学—植物病理学] S435.32[农业科学—农业昆虫与害虫防治]