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实时荧光定量PCR法测定禽蛋中沙门氏菌 被引量:5

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摘要 为建立禽蛋中沙门氏菌的荧光PCR法检测方法,根据invA基因序列设计实时荧光定量PCR引物和探针,常规方法提取菌体DNA,以55℃为退火温度进行荧光PCR扩增,并进行方法学考察。结果表明:阳性对照品和沙门氏菌为模板的样品有明显扩增曲线,其他菌株为模板的样品无扩增曲线,特异性、灵敏度和重现性考察提示实时荧光定量PCR方法符合检测方法学要求。实时荧光定量PCR法的应用,提高了禽蛋制品中沙门氏菌检测的灵敏度、缩短了检测时间、简化了检测流程。
作者 张波 汪永信
出处 《现代农业科技》 2012年第10期333-335,337,共4页 Modern Agricultural Science and Technology
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