白肋烟栽培土壤中青枯病菌的鉴定与生化型分析

Tobacco Science & Technology(2012)

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Abstract
为建立一套成本低廉、简单快速的分离检测土壤青枯病菌的方法,采用半选择性培养基(PCCG)和PCR技术相结合,从白肋烟栽培土壤中分离鉴定出12个菌株,并分析了这12个菌株的ITS序列。结果表明:分离出的12个菌株ITS序列与青枯病菌同源性最高,达到92.6%,该方法适合于土壤中青枯病菌的分离鉴定。Hayward的青枯病菌生化型鉴定结果表明,这12个菌株均为生化型Ⅲ。
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Key words
Soil,Burley,Ralstonia solanacearum,Biovar,Identification,Isolation
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