›› 2012, Vol. 39 ›› Issue (4): 79-81.

• 生物技术 • 上一篇    下一篇

牛布氏杆菌PCR检测方法的建立

王素华1, 王忠才1, 杜爱芳2   

  1. 1. 温州出入境检验检疫局,浙江温州 325027;2. 浙江大学动物预防医学研究所,浙江杭州 310029
  • 收稿日期:2011-01-02 修回日期:1900-01-01 出版日期:2012-04-20 发布日期:2012-04-20

Establishment of PCR for Detecting Bovine Brucella

WANG Su-hua1, WANG Zhong-cai1, DU Ai-fang2   

  1. 1. Wenzhou Entry-exit Inspection and Quarantine Bureau, Wenzhou 325027, China;2. Institute of Preventive Veterinary Medicine, Zhejiang University, Hangzhou 310029,China
  • Received:2011-01-02 Revised:1900-01-01 Online:2012-04-20 Published:2012-04-20

摘要: 根据GenBank上公布的牛布氏杆菌外膜蛋白OMP31的基因序列设计特异性引物,对牛布氏杆菌样品进行PCR扩增并将产物克隆到pMD18-T载体后测序。结果表明,扩增的目的片段大小为602 bp,与预期扩增序列同源性为99.7%;该PCR检测体系的特异性强,不能在非布氏杆菌 DNA中扩增出条带;敏感性高,最低检测的DNA含量为0.9 pg/μL。该检测体系的成功构建为牛布氏杆菌病的检测、鉴定和流行病学调查提供了有力的技术支持。

关键词: 牛; 布氏杆菌; PCR; 检测方法

Abstract: A pair of primers were designed according to the sequence of specific Brucella gene of Outer membrane protein(OMP31),the OMP31 gene was amplified by PCR and cloned into pMD18-T vector, and then the gene sequence was detected. The results showed that the target gene band at a length 602 bp was amplified by PCR, with a homology of 99.7% to the gene sequence reported in GenBank. The experiments had proved that PCR assay possessed a high specificity, DNA bands couldn't amplified in other bacterial except Brucella. And the sensitivity test results indicated that PCR assay was more sensitive, which could detect OMP31 with only 0.9 pg/μL DNA. The successfully construction of the PCR assay provides strongly technical support for detection, identification and epidemiological investigations of bovine brucellosis.

Key words: bovine; Brucella; PCR; detection

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