›› 2013, Vol. ›› Issue (5): 83-86.

• 生物技术 • 上一篇    下一篇

牛病毒性腹泻病毒JN株的分离鉴定及E2基因的序列分析

汤中和   

  1. 青海省玉树县动物疫病预防控制中心, 青海玉树 815000
  • 收稿日期:2012-12-06 出版日期:2013-05-20 发布日期:2013-05-27
  • 作者简介:汤中和(1976-),男,青海人,兽医师,研究方向:动物医学。

Isolation and Identification of Bovine Viral Diarrhea Virus JN Strain and Sequence Analysis on E2 Gene

TANG Zhong-he   

  1. Center of Animal Disease Prevention and Control of Yushu County in Qinghai Province, Yushu 815000, China
  • Received:2012-12-06 Online:2013-05-20 Published:2013-05-27

摘要: 本研究从疑似牛病毒性腹泻病毒(bovine viral diarrhea virus,BVDV)感染牛的分泌物与排泄物中分离鉴定1株牛病毒性腹泻病毒,并进行E2基因序列分析。结果表明,分离株病毒命名为JN株;Reed-Muench法测定分离株病毒TCID50为10-7.5/0.1 mL;病毒中和试验结果表明,BVDV JN分离株可被BVDV阳性血清特异性中和,而不能被BVDV阴性血清中和;分离株病毒E2基因序列测序结果表明,该分离毒株属于BVDVⅠa亚型。

关键词: 牛病毒性腹泻病毒; 分离鉴定; E2基因; 序列分析

Abstract: A strain of bovine viral diarrhea virus (BVDV) was isolated and identified from the suspected of bovine viral diarrhea virus infection cattle secretions and excretions, and E2 gene sequence was analysed. The results showed that the isolated virus was named as JN strain, Reed-Muench method for the determination of isolate virus TCID50 was 10-7.5/0.1 mL, virus neutralization test results showed that the BVDV JN isolate could be specifically neutralized by BVDV positive serum, but not by BVDV negative serum neutralization. Results of E2 gene sequences of BVDV isolate showed that the isolate belonged to the BVDV Ⅰa subtype.

Key words: bovine viral diarrhea virus; isolation and identification; E2 gene; sequence analysis

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