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对2005~2012年间采集自黑龙江省哈尔滨、望奎、漠河、塔河、呼玛、加格达奇、嫩江、克山、甘南、鹤岗、肇东、林口12个市县的133个马铃薯晚疫病菌株进行了交配型鉴定。结果表明,采集自2005~2010年间的51个菌株均为A1交配型,未发现A2交配型;采集自2011年的52个菌株中12个为A2交配型,占23.08%;2012年鉴定的30个菌株中9个为A2交配型,占30%。这是自2004年朱杰华报道发现一株A2交配型六年后,黑龙江省首次确认在甘南、哈尔滨、肇东发现马铃薯晚疫病菌A2交配型。
A total of 133 potatoes collected from 12 cities and counties of Harbin, Wangkui, Mohe, Tahe, Huma, Jiagedaqi, Nenjiang, Keshan, Gannan, Hegang, Zhaodong and Linkou of Heilongjiang Province from 2005 to 2012 Blight strains were mating type identification. The results showed that all the 51 strains collected from 2005 to 2010 were A1 mating type and A2 mating type was not found. Among the 52 strains collected from 2011, A2 were mating type (23.08%), accounting for 23.08% Nine strains of A2 mating type, accounting for 30%. This is the first time since 2004 that Zhu Jiehua reported that one A2 mating type was found. Heilongjiang first confirmed that the P. infestans A2 mating type was found in Gannan, Harbin and Zhaodong.