›› 2003, Vol. 23 ›› Issue (3): 154-156.

• 论文 • 上一篇    下一篇

布氏杆菌PCR检测方法的建立

  

  1. 上海市实验动物质量监督检验站,上海 200032
  • 收稿日期:2002-05-25 修回日期:2003-04-20 出版日期:2003-01-25 发布日期:2013-03-19
  • 基金资助:

    上海市科技发展基金资助项目(004919071)

Detection of Brucella (R、S) Using Polymerase Chain Reaction

  1. Shanghai Quality Monitoring Center For Laboratory Animals,Shanghai 200032,China
  • Received:2002-05-25 Revised:2003-04-20 Online:2003-01-25 Published:2013-03-19

摘要: 根据编码31-kDa布氏杆菌蛋白的基因(BSCP31),设计两对引物。对布氏杆菌R型(粗糙型)抗原及S型(光滑型)抗原、大肠杆菌、溶血性链球菌、嗜肺巴氏杆菌、金黄色葡萄球菌、螺旋杆菌、绿脓杆菌分别采用两种提取、纯化DNA的方法,并以纯化的各细菌DNA为模板,分别进行内、外引物PCR反应及套式PCR反应,反应时以灭菌超纯水作为空白对照。结果显示:进行内、外引物PCR反应和套式PCR反应时,布氏杆菌R型及S型均出现预期的扩增带594bp、460bp及460bp,且套式扩增后条带亮度明显增强,而作为验证PCR特异性或对照的大肠杆菌、溶血性链球菌、嗜肺巴氏杆菌、金黄色葡萄球菌、螺旋杆菌、绿脓杆菌、灭菌超纯水均无扩增带。验证敏感性时用外引物对布氏杆菌R型、S型DNA进行扩增后,最低可检测到1Pg的布氏杆菌DNA。

关键词: 布氏杆菌R型(粗糙型)抗原, 布氏杆菌S型(光滑型)抗原, PCR

Abstract: DNA extracted from Brucella (Rough、Smooth) and five non-Brucella micro-organisms were amplified by PCR using 2 pairs of primers specific for the genes encoding a 31-kDa Brucclla protein. Two DNA fragment of the expected size (591 bp and 460 bp) were amplified from Brucella (R、S) and one DNA fragment of the expected size (460 bp ) was amplified from Brucella using NT-PCR ,but no band was observed in five non-Brucella micro-organisms. The sensitivhy of the reaction was determined with different concentrations of genomic Brucella (R、S) DNA. As few as 1 pg DNA could be detected by this method.

Key words: Brucella (Rough、Smooth) antigen, PCR