《中国畜牧兽医》---唯一指定的官方网站 ›› 2016, Vol. 43 ›› Issue (7): 1856-1861.doi: 10.16431/j.cnki.1671-7236.2016.07.030

• 疾病防治 • 上一篇    下一篇

1株鸽Ⅰ型副黏病毒的分离与鉴定

韦天超, 翟国胜, 李海琼, 潘超, 农海连, 黄文飞, 磨美兰, 韦平   

  1. 广西大学动物科学技术学院, 南宁 530004
  • 收稿日期:2016-01-04 出版日期:2016-07-20 发布日期:2016-07-22
  • 通讯作者: 韦平 E-mail:pingwei8@126.com
  • 作者简介:韦天超(1973-),男,广西藤县人,博士,副教授,研究方向:禽病学,E-mail:tcwei88@126.com
  • 基金资助:

    国家自然科学基金项目(31360612);广西自然科学基金项目(2013GXNSFAA019080);广西科技攻关项目(桂科攻1123007-4);广西大学生创新创业训练计划项目(201410593118、SYJN20121701)

Isolation and Identification of One Strain of Pigeon Paramyxovirus SerotypeⅠ

WEI Tian-chao, ZHAI Guo-sheng, LI Hai-qiong, PAN Chao, NONG Hai-lian, HUANG Wen-fei, MO Mei-lan, WEI Ping   

  1. College of Animal Science and Technology, Guangxi University, Nanning 530004, China
  • Received:2016-01-04 Online:2016-07-20 Published:2016-07-22

摘要:

本试验采集病死鸽临床样品,用SPF鸡胚接种传代分离病毒后,通过血凝(HA)与血凝抑制(HI)试验、RT-PCR及F基因部分片段测序与分析对分离株进行鉴定,并通过测定鸡胚平均死亡时间(MDT)、1日龄雏鸡脑内接种致病指数(ICPI)和动物回归试验评估分离株的毒力和致病性。结果表明,从病鸽组织病料中分离获得1株鸽Ⅰ型副黏病毒(PPMV-1),命名为GXP120012。分离株GXP120012的F基因裂解位点112-117位的氨基酸组成为R-R-Q-K-R-F,符合强毒株特征;GXP120012与PPMV-1参考毒株pi/CH/LLN/110713的核苷酸序列同源性高达98.9%,并处于同一遗传分支,基因型为Ⅵ型。该分离株的MDT为102 h,ICPI为0。动物回归试验发现,分离株GXP120012对鸽具有较强的致病性,而对鸡没有致病力。本试验结果为今后鸽新城疫的分子流行病学研究和疾病防控提供理论依据。

关键词: 鸽Ⅰ型副黏病毒; 分离鉴定; 致病性; 基因型

Abstract:

A pigeon paramyxovirus serotypeⅠ(PPMV-1) isolate was recovered from samples collected from dead pigeons and initial isolation of the virus was performed in 9-day-old specific-pathogen-free (SPF) chicken embryos.The isolate was identified by the hemagglutination (HA) test,hemagglutination-inhibition (HI) assays,RT-PCR,sequencing and analysis of partial of F gene of the virus.The virulence and pathogenicity of the isolate were determined by mean death time (MDT),intracerebral pathogenicity index (ICPI) in 1-day-old chicks and animal regression experiment.The results indicated that one PPMV-1 was isolated from dead pigeon and named as GXP120012.The F gene sequence analysis of PPMV-1 GXP120012 strain showed that the cleavage sites of the virus was 112R-R-Q-K-R-F117 motif in accordance with characteristic of velogenic strains;The nucleotide sequence homologies of F gene between strain GXP120012 and PPMV-1 reference strain pi/CH/LLN/110713 were high and reached 98.9%.They located the same branch on phylogenetic tree and fell into genotype Ⅵ.The MDT and ICPI values of isolate were 102 h and 0,respectively.The results of animal regression experiment showed that GXP120012 isolate was virulent for pigeons and avirulent for chickens.The present study provided useful material and theoretical basis for the study of molecular epidemiology and prevention and control of Newcastle disease in pigeon in future.

Key words: pigeon paramyxovirus serotypeⅠ; isolation and identification; pathogenicity; genotype

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