›› 2010, Vol. 37 ›› Issue (3): 201-203.

• 疾病防治 • 上一篇    下一篇

斑点杂交法在鸡毒支原体污染检测中的应用

马艳琴1, 张映2
  

  1. (1.山西农业大学生命科学学院, 太谷 030801; 2.山西农业大学动物科技学院, 太谷 030801)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-03-20 发布日期:2010-03-20
  • 通讯作者: 张映

Application of Dot-blotting Hybridization Technique on the Detection of M.gallisepticum Contamination in Live Vaccine

MA Yan-qin1, ZHANG Ying2   

  1. (1.College of Life Science,Shanxi Agricultural University,Taigu 030801,China;2.College of Animal Science and Technology,Shanxi Agricultural University,Taigu 030801,China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-03-20 Published:2010-03-20

摘要: 试验根据GenBank中登录的鸡毒支原体16S rRNA 基因序列,用DNAStar和Primer 5.0软件自行设计探针,并进行地高辛标记。采用带正电的尼龙膜对提取的鸡毒支原体DNA进行斑点杂交反应,建立最佳的反应条件,并采用建立的条件对市场上随机购买的鸡新城疫活疫苗进行检测。结果显示,运用斑点杂交反应可以从疫苗样品中检测到支原体的污染,检出率为23.3% (7/30) 。表明该方法快速、特异性、敏感性高,对生物制品中支原体污染的快速检测具有较高的应用价值。

关键词: 鸡毒支原体; DNA探针; 斑点杂交

Abstract: In this experiment, a DNA probe was designed and DIG-labeled by the predecessors according to the 16S rRNA gene sequence of M.gallisepticum(MG) published in GenBank. The positively charged nylon membranes were used in the Dot-blotting analysis. This method was applied to detect the samples of Newcastle disease live vaccines. The results showed that the MG contamination can be detected in the live vaccines by Dot-blotting hybridization. The rate of detection was 23.3% (7/30). The Dot-blotting hybridization was a sensitive and specific method in the Mycoplasma contamination detection of biologicals. 

Key words:  M.gallisepticum; DNA probe; Dot-blotting hybridization

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