福建马铃薯黑胫病病原分离及鉴定
Acta Horticulturae Sinica（2020）
Abstract
为明确福建马铃薯黑胫病的病原菌的种类和生物学特性,采集福建3个马铃薯种植区的病样,并通过平板分离、纯化和致病性测定、生理生化测定及分子生物学方法对该病原菌进行鉴定.结果 从病样中分离获得9个菌株,其中2个菌株鉴定为黑腐果胶杆菌(Pectobacterium atrosepticum),3个菌株鉴定为胡萝卜软腐果胶杆菌胡萝卜亚种(P.carotovorum subsp.carotovorum),4个菌株鉴定为胡萝卜软腐果胶杆菌巴西亚种(P.carotovorum subsp.brasiliensis).不同地区菌株差异较大,其中福州青口的病原是P.atrosepticum,霞浦的病原是P.carotovorum subsp.carotovorum,而周宁的是P.carotovorum subsp.carotovorum和P.carotovorum subsp.brasiliense混合侵染.
MoreKey words
disease,potato,fujian province
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