畜牧兽医学报 ›› 2014, Vol. 45 ›› Issue (2): 268-273.doi: 10.11843/j.issn.0366-6964.2014.02.015

• 预防兽医 • 上一篇    下一篇

多重PCR方法快速鉴别肠炎、鼠伤寒、鸡白痢及鸡伤寒沙门菌

杨林1,娄亚坤1,宿春虎1,张华1,管萌1,许晨旭1 ,陈素娟1,魏荣2,陈继明2,彭大新1*   

  1. (1.扬州大学兽医学院,扬州 225009;2.中国动物卫生与流行病学中心,青岛 266032)
  • 收稿日期:2013-06-20 出版日期:2014-02-23 发布日期:2014-02-23
  • 通讯作者: 彭大新,E-mail:daxinpeng@yahoo.com
  • 作者简介:杨林(1987-),女,硕士研究生,主要从事动物传染病的防控技术研究
  • 基金资助:

    公益性行业(农业)专项经费资助(201303044);江苏省青蓝工程项目(苏教师2010[27]号);教育部“长江学者和创新团队发展计划”创新团队项目(IRT0978);江苏高校优势学科建设工程

Development of a Multiplex PCR for Rapid Identification of Salmonella enteritidisSalmonella typhimuriumSalmonella pullorum and Salmonella gallinarum

YANG Lin1,LOU Ya-kun1,SU Chun-hu1,ZHANG Hua1,GUAN Meng1,XU Chen-xu1,CHEN Su-juan1,WEI Rong2,CHEN Ji-ming2,PENG Da-xin1*   

  1. (1.College of Veterinary Medicine,Yangzhou University, Yangzhou 225009, China;2.China Animal Health and Epidemiology Center, Qingdao 266032, China)
  • Received:2013-06-20 Online:2014-02-23 Published:2014-02-23

摘要:

根据沙门菌属特异性基因hut及型特异性基因SdfⅠ、SpyglgCSpec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。

Abstract:

Based on the sequences of the hut gene specific for Salmonella and the SdfⅠ, SpyglgC,and Spec genes specific for Salmonella serotypes,five pairs of primers were designed and synthesized.A multiplex PCR (mPCR) method was developed and uses for detection of clinical Salmonella isolates.The results showed that the strains of S.enteritidisS.typhimuriumS.pullorum and S.gallinarum were identified specifically by the mPCR,the sensitivities of mPCR for all bacteria were 3×103 CFU,and the sensitivities of mPCR for chromosomal DNA of S.enteritidisS.typhimuriumS.pullorum and S.gallinarum were 162,202,214 and 178 pg·μL-1,respectively.Compared to the traditional serological assay,the sensitivities of the PCR for 55 Salmonella clinical isolates were 100%,and the minimal coincidence rate of the mPCR assay were 96.4%.The results indicated that the mPCR assay is a rapid,sensitive and specific method for identification of the four serotypes Salmonella.

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