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从贵州阿哈湖、百花湖及云南滇池不同深度的湖水中筛选出2株宿主菌株.经16S rRNA基因序列分析,这2株宿主菌分别鉴定为肠杆菌(Enterobacteriales)和黄色单胞菌(Xanthomonadales).分别利用这2株宿主菌,从湖水样品中获得到了类蛭弧菌噬菌斑.通过吸光度分析、用淡水类蛭弧菌的特异性引物进行基因扩增、DNA序列分析等一系列方法,证实了所分离的菌株为类蛭弧菌.建立了用同一生长环境中的宿主菌来分离类蛭弧菌的方法,并用该方法从淡水湖泊中分离出了不同类群的类蛭弧菌菌株.“,”Two kinds of preys were isolated from different water depths of Lake Aha and Baihua in Guizhou Province and Lake Dianehi in Yunnan Province.They are identified as Enterobacteriales and Xanthomonadales respectively by 16S rDNA sequence analysis.The plaques of BALOs were got from lake water samples.The isolates were verified as BALOs though absorbency determination,PCR with specific primers and DNA sequence analysis.A method of isolating BALOs by using isolated preys in the same inhabitants was established.Various clusters of BALOs were isolated from freshwater lakes by using the methods.