黑龙江省稻瘟病菌生理小种鉴定与分析  

Identification and analysis of the physiologic races of Magnaporthe grisea in Heilongjiang Province

作　　者：马军韬[1] 张国民[1] 辛爱华[1] 肖佳雷[1] 刘迎雪[1] 宫秀杰[1] 

机构地区：[1]黑龙江省农业科学院耕作栽培所,哈尔滨150086

出　　处：《植物保护》2010年第3期97-99,102,共4页Plant Protection

基　　金：黑龙江省自然科学基金重点项目(ZJN0703-01);农业部"948"项目(2006-G61)

摘　　要：2006年,应用日本清泽鉴别寄主共分离测定了黑龙江省稻瘟病菌单孢菌株178个,结果共划分为104个生理小种。其中77.7号小种为黑龙江省的优势小种,比例为4.49%;677.7、377.7号小种为强毒力小种,能侵染91.67%的鉴别品种,从基因角度来说,Pi-ta2、Pi-zt可在黑龙江省的优势小种区利用,Pi-ks,Pi-t不可在黑龙江省大规模利用,此外,地域较近地区的稻瘟病菌的生理小种群体也有较大的差异。One hundred and seventy-eight isolates of Magnaporthe grisea were identified in Heilongjiang Province, which could be further classified into 104 physiologic races. Race No. 77.7 was the prevailing race with the frequency of 4.49% No. 677.7 and No. 377.7 were highly virulent races with an infection frequency of 91.67%. The genes Pi-ta^2 and Pi-z＇ could not be exploited extensively in Heilongjiang Province.

关 键 词：水稻 稻瘟病菌 生理小种 

分 类 号：S435.111.41[农业科学—农业昆虫与害虫防治]