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Kelibinuer Reheman;YANG Chun-jing;YAN Peng-fei;LI Jiang-wei
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克力比努尔·热合曼;杨春静;晏鹏飞;李江伟
摘要: [目的]建立猪丹毒丝菌(E.rhusiopathiae)毒力株的快速检测方法.[方法]利用快速灵敏的环介导等温扩增技术( Loop - mediated Isotherml amplification,LAMP)针对丹毒丝菌spa基因较为保守区域设计4条特异性LAMP引物,采用FTA(Flinders technology associates,FTA)滤膜法提取12种血清型丹毒丝菌,8种非丹毒丝菌及受感染小鼠血液的基因组DNA,分析LAMP环引物的特异性;比较LAMP与传统PCR方法的扩增敏感性和产物特异性.[结果]在61℃恒温条件下,LAMP法能够特异性扩增丹毒丝菌特异条带,与常规PCR扩增结果一致;灵敏度实验表明LAMP法检测猪丹毒丝菌的检测下限为2 CFU/mL,较传统PCR的敏感性(大于20 CFU/mL)至少高10倍.LAMP方法与PCR方法都能在小鼠感染模型血样中检测到浓度为200CFU(10-7)/mL以上浓度的丹毒丝菌.[结论]LAMP法与FTA滤膜法相结合在检测丹毒丝菌中具有潜在的应用价值.
Kelibinuer Reheman;YANG Chun-jing;YAN Peng-fei;LI Jiang-wei. Rapid Detection of Erysipelothrix rhusiopathiae Using Loop- Mediated Isothermal Amplification[J]. .
克力比努尔·热合曼;杨春静;晏鹏飞;李江伟. 采用环介导等温扩增技术快速检测猪丹毒丝菌病原体[J]. .
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http://www.xjnykx.com/EN/Y2012/V49/I7/1321