四川马铃薯晚疫病菌对氟啶胺的敏感性研究  

Baseline Sensitivity of Phytophthora infestans to Fluazinam in Sichuan Province

作　　者：李洪浩[1] 吴应山 杨春林 吴婕[1] 席亚东[1] 王晓黎[1] 刘波微[1] 

机构地区：[1]四川省农业科学院植物保护研究所/农业部西南作物有害生物综合治理重点实验室,四川成都610066 [2]四川省九龙县农牧和科技局,四川九龙626200 [3]四川省乐山市农业局植保植检站,四川乐山614000

出　　处：《西南农业学报》2015年第5期2331-2333,共3页Southwest China Journal of Agricultural Sciences

基　　金：四川省农业科学院优秀论文基金(2014LWJJ-004);四川省"十二五"育种公关项目(2011NZ0098-17);四川马铃薯创新团队建设项目

摘　　要：2010—2014年在四川各马铃薯主产区共分离获得80株马铃薯晚疫病菌，并对其进行氟啶胺的敏感性测定。结果表明：不同年份马铃薯晚疫病菌对氟啶胺的敏感性无显著差异，马铃薯晚疫病菌对氟啶胺的敏感性分布呈单峰曲线，Ec50值分布在0．1830—0．8767μg／mL，最不敏感菌株是最敏感菌株的4．8倍，平均固‰值为（0．4369±0．1426）μg／mL，可作为四川马铃薯晚疫病菌对氟啶胺的敏感基线，未检测到抗性菌株。Abstract：A total of 80 isolates of Phytophthora infestans were collected in Sichuan during 2010 to 2014 and analyzed against fluazinam. The results showed that there were no significant differences in sensitivity of isolates to fluazinam in different years, their sensitivities distributed as a unimodal curve, EC50 values ranged from 0.1830 p,g/mL to 0. 8767 μg/mL, the most insensitive was 4.8 folds of the most sensitive, with a mean of （ 0.4369 ±0.1426 ） μg/mL, which could be used as baseline-sensitivity of P. infestans to fluazinam in Sichuan. Meanwhile, resistant isolates were not detected in Sichuan province.

关 键 词：马铃薯晚疫病菌 氟啶胺 敏感基线 抗药性 

分 类 号：S481.4[农业科学—农药学]