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多重PCR方法快速鉴别肠炎、鼠伤寒、鸡白痢及鸡伤寒沙门菌

Acta Veterinaria Et Zootechnica Sinica(2014)

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Abstract
根据沙门菌属特异性基因hut及型特异性基因SdfⅠ、Spy、glgC和Spec序列,设计5对引物,建立沙门菌多重PCR方法,并用临床样品分离菌株对该方法进行检验.结果显示,该方法能特异性地鉴定肠炎沙门菌、鼠伤寒沙门菌、鸡白痢沙门菌和鸡伤寒沙门菌,4种细菌检测灵敏度均为3×103 CFU,染色体DNA检测灵敏度分别为162、202、214和178 pg· μL-1.55份临床分离株检测的结果显示,与传统血清学方法相比,此多重PCR方法敏感性为100%,符合率最低为96.4%.该法能快速而准确地鉴定上述4种血清型的沙门菌.
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Key words
Salmonella,multiplex PCR,serotype,identification
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