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- W3032274596 abstract "目的 通过检测产志贺毒素大肠埃希菌中的志贺样毒素,确定网状分枝扩增技术的灵敏度和特异性,从而进一步探讨该方法用于检测食品和临床标本中O157:H7和STEC的可行性.方法用网状分枝扩增技术检测合成的志贺样毒素2的基因和临床分离的菌株,确定该方法的灵敏度和特异性,与聚合酶链反应进行比较.结果网状分枝扩增技术最少能检测10个志贺样毒素DNA分子,与PCR灵敏度一样.E.coliO157:H7和志贺痢疾杆菌志贺样毒素阳性,而非致病性大肠埃希菌为阴性.用网状分枝扩增技术与PCR对分离的菌株进行检测,结果也一致.结论网状分枝扩增技术具有高度的灵敏度和特异性,操作简便,而且在等温条件下扩增核酸,因此可替代PCR检测食品和临床标本中的产志贺样毒素大肠埃希菌。" @default.
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- W3032274596 date "2004-07-21" @default.
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- W3032274596 title "Detection of shiga toxin in shiga toxin-producing Echerichia coli by ramification amplification method" @default.
- W3032274596 doi "https://doi.org/10.3760/j:issn:1009-9158.2004.07.023" @default.
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