畜牧兽医学报 ›› 2015, Vol. 46 ›› Issue (7): 1268-1272.doi: 10.11843/j.issn.0366-6964.2015.07.026

• 研究简报 • 上一篇    

貂源伪狂犬病病毒的分离鉴定及gE基因分子特征

芮萍#,刘曜综#,马增军*,王秋悦,杨彩然,刘谢荣   

  1. (河北科技师范学院 河北省预防兽医学重点实验室,秦皇岛 066004)
  • 收稿日期:2014-10-08 出版日期:2015-07-23 发布日期:2015-07-23
  • 通讯作者: 马增军,教授,博士,E-mail:mzj6699@126.com
  • 作者简介:芮萍(1969-),女,河北张北人,教授,博士,主要从事兽医病原微生物学研究,E-mail:rp1969@126.com;刘曜综(1989-),男,河北乐亭人,硕士生,主要从事预防兽医学研究,两人共为第一作者
  • 基金资助:

    河北省科技支撑项目(13226609D);河北省畜牧局计划项目(2011-1-19);河北省生猪产业技术体系专项资金

Identification and Glycoprotein E Characteristic of Pseudorabies Virus from Mink

RUI Ping#,LIU Yao-zong#,MA Zeng-jun*,WANG Qiu-yue,YANG Cai-ran,LIU Xie-rong   

  1. (Key Laboratory of Preventive Veterinary Medicine of Hebei,Hebei Normal University of Science and Technology,Qinhuangdao 066004,China)
  • Received:2014-10-08 Online:2015-07-23 Published:2015-07-23

摘要:

2014年以来,我国多个毛皮动物养殖场不同日龄的貂出现神经症状、腹泻和急性死亡等,采集昌黎县病死貂的脑组织通过细胞培养、病毒蚀斑纯化、病毒的形态结构观察、动物接种试验分离到1株伪狂犬病病毒,命名为Mink 1。病料接种MDCK细胞能够产生典型的细胞病变,病毒粒子在电镜下呈圆形、有囊膜、直径约为150 nm,病毒悬液接种家兔能引起家兔奇痒、麻痹死亡。利用PCR 方法从病死动物脑组织中扩增PRV gE基因,gE基因序列分析表明,从貂的病料中扩增的gE 基因与2012 年猪伪狂犬分离株的相似性高达99.4%,进化树位于一个相对独立的分支。与经典毒株相比,在142—144位和1 487—1 490位两处同时存在GAC和ACG连续碱基的插入。以上试验结果证实该病例是由伪狂犬病病毒感染所引致。

Abstract:

An epidemic disease characterized by neurological symptoms,diarrhea and acute death phenomenon in different ages of mink occurred in many fur farms of China since 2014.One pseudorabies virus (PRV) was identified by cell culture,plaque purification,morphology observation and animal inoculation experiment,named Mink 1.The isolate was able to cause typical CPE in MDCK cells,and cause itch,death in experimentally infected rabbit.Virus particles were round,with envelope,diameter of about 150 nm under the electron microscope.The gE of the Mink 1 was amplified by PCR and the results showed that PRV were found in detected animal.Sequence alignments indicated that the gE genes from the mink shared 99.4% identity with swine PRV isolated in 2012,located in a relatively independent branch.PRVs isolated had the same sequence features with two consecutive bases insertions of GAC and ACG at sites of 142-144 and 1 487-1 490 in gE compared with the classical strains.The above experimental results confirmed that the case is caused by PRV infection.

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