›› 2009, Vol. 36 ›› Issue (12): 45-48.

• 生物技术 • 上一篇    下一篇

猪链球菌2型LUX荧光PCR检测方法的建立

王彩霞, 查成刚, 吴绍强, 林祥梅   

  1. (中国检验检疫科学研究院动植物检疫研究所, 北京 100029)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-12-20 发布日期:2009-12-20
  • 通讯作者: 林祥梅

Development of a LUX PCR Assay for Detection of Streptococcus suis Type 2

WANG Cai-xia, ZHA Cheng-gang, WU Shao-qiang, LIN Xiang-mei   

  1. (Chinese Academy of Inspection and Quarantine, Institute of Animal and Plant Quarantine, Beijing 100029, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-12-20 Published:2009-12-20
  • Contact: LIN Xiang-mei

摘要: 猪链球菌2型是一种严重的人兽共患病病原,为满足猪链球菌2型快速检测的需要,本研究根据猪链球菌2型Cps2J保守区设计LUX引物,首次利用LUX PCR方法对猪链球菌2型进行检测,并进行了敏感性和特异性试验及模拟样品检测试验。结果显示,本研究建立的猪链球菌LUX 荧光PCR检测方法具有较好的敏感性和特异性,检测质粒样品的敏感性为10拷贝,检测模拟样品敏感性为102拷贝,与无乳链球菌、巴氏杆菌、粪链球菌、马链球菌兽疫亚种、沙门氏菌等无交叉反应。该方法的建立为猪链球菌2型的快速检测提供了新的途径。

关键词: 猪链球菌2型; LUX; PCR; 检测

Abstract: The infection caused by Streptococcus suis type 2 is an important zoonosis. Based on the conserved cps2J region of Streptococcus suis type 2, the LUX primers were designed and the LUX PCR assay was developed to detect Streptococcus suis type 2. The sensitivity and specificity of the developed assay were analyzed by using the tonsils samples artificially contaminated with plasmid DNA as testing materials. Results showed that the developed Streptococcus suis serotype 2 specific LUX PCR assay was sensitive enough to detect 100 copies of plasmid DNA from the mask samples. The assay could distinguish Streptococcus suis serotype 2 from Streptococcus agalactiae, swine Pasteurellosis mutocida, Streptococcus faecalis, Streptococcus suis equi subsp equi, swine Cholerasuis and other swine bacteria pathogens. The developed assay can serve a candidate for the quick detection of Streptococcus suis serotype 2 infection in the field.

Key words: Streptococcus suis serotype 2; LUX; PCR; detection

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