›› 2010, Vol. 37 ›› Issue (12): 229-231.

• 经验交流 • 上一篇    下一篇

斑点杂交法检测犬瘟热病毒

张永霞,王金福,张似青   

  1. (上海农林职业技术学院,上海 201600)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-12-20 发布日期:2010-12-20

The Detection of Canine Distemper Virus by Dot blotting Hybridization

ZHANG Yong-xia, WANG Jin-fu, ZHANG Si-qing   

  1. (Shanghai Vocational Technical College of Agriculture and Forestry, Shanghai 201600,China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-12-20 Published:2010-12-20

摘要: N蛋白是犬瘟热病毒核衣壳的主要构成成分,又是保守性较强的免疫原性蛋白。本研究对犬瘟热病毒N基因重组质粒酶切、凝胶回收目的DNA进行DIG标记制备探针,用此探针斑点杂交检测40只疑似犬瘟热患病犬鼻液和20只病死犬脾脏、肝脏、心脏、肺脏、肾脏、血液中的犬瘟热病毒。结果显示,40只疑似犬中,有33只是阳性,阳性率是82.5%,比胶体金诊断试纸阳性检出率高。而对病死犬的不同组织检测中,脾脏中病毒检出率最高,表明斑点杂交技术在犬瘟热病毒的早期诊断和流行病学调查中有很高的应用价值。

关键词: 斑点杂交; 犬瘟热病毒; N基因

Abstract: N protein is the major forming element of nucleocapsid of CDV and is also a conservative immunogenicity protein. A digoxin labeled probe prepared by enzyme digesting recombinant plasmid of CDV N protein and gel reclaiming targeting DNA was used to detect blenna narium of 40 suspected cases of CD and to detect spleen, liver, heart, lung, kidney and blood of 20 dead cases of CD by dot blotting hybridization. Results showed that among 40 suspected cases of CD, 33 cases were positive and positive rate was 82.5%. This rate was higher than that of colloid gold test paper detection. Virus relevance ratio of spleen was the highest among different tissues of detection. Above results showed that dot blotting hybridization had very important application value in early diagnosis and epidemiological investigation of CDV.

Key words: dot blotting hybridization; CDV; N gene

中图分类号: