畜牧兽医学报 ›› 2016, Vol. 47 ›› Issue (8): 1676-1681.doi: doi: 10.11843/j.issn.0366-6964.2016.08.019

• 基础兽医 • 上一篇    下一篇

鸭源鸡杆菌整合子及其与耐药性的相关性分析

彭志锋,高冬生,刘红英,杨霞,赵军,王新卫,李永涛,陈陆,常洪涛,王川庆*   

  1. (河南农业大学禽病研究所,郑州 450002)
  • 收稿日期:2016-01-21 出版日期:2016-08-23 发布日期:2016-09-08
  • 通讯作者: 王川庆,男,教授,博导, E-mail:wchuanq@163.com
  • 作者简介:彭志锋(1982-),男,河南周口人,博士生,主要从事动物传染病发病机制及防制研究,E-mail:zfpeng2006@126.com;高冬生,男,(1985-),河南新密人,硕士,主要从事动物传染病发病机制及防制研究。#彭志锋和高冬生同为第一作者
  • 基金资助:

    国家自然科学基金(31302090);河南省高校科技创新团队与支持计划资助项目(14IRTSHN015)

Gallibacterium anatis Integron and Its Correlation with the Drug Resistance

PENG Zhi-feng,GAO Dong-sheng#,LIU Hong-ying,YANG Xia,ZHAO Jun,WANG Xin-wei,LI Yong-tao,CHEN Lu,CHANG Hong-tao,WANG Chuan-qing*   

  1. (Institute of Poultry Diseases,Henan Agricultural University,Zhengzhou 450002,China)
  • Received:2016-01-21 Online:2016-08-23 Published:2016-09-08

摘要:

为了解鸭源鸡杆菌的整合子及其与耐药性之间的关系,运用PCR方法检测鸭源鸡杆菌分离株携带1、2、3类整合子的情况,采用K-B法测定61株鸭源鸡杆菌对13种抗菌药的敏感性,并分析其整合子与耐药性的关联性。结果显示,所有参试菌株对克林霉素、诺氟沙星、链霉素有耐药性的菌株比例均不低于88.52 %(54/61)。19株鸭源鸡杆菌携带1类整合子,阳性率为31.15%,且此类菌株的耐药种数均≥3;在耐药种数≥5的菌株中,整合子阳性菌的比例(78.95%)显著高于整合子阴性菌的比例(28.57%,P<0.01)。本试验首次研究了鸭源鸡杆菌中整合子的分布情况。参试菌株仅携带1类整合子,且普遍存在多重耐药性;1类整合子可能在鸭源鸡杆菌多重耐药性的形成中发挥一定作用。

关键词: 鸭源鸡杆菌, 整合子, 耐药性

Abstract:

 The aim of the present study was to confirm existence of the integrons in Gallibacterium anatis(G.anatis)isolates and the role of integrons in multidrug resistance.The integrons class 1,2 and 3 in G.anatis isolates were detected by PCR amplification for the first time.The sensitivity of 61 G.anatis strains was tested against 13 kinds of antibiotics by Kirby-Bauer method.The correlation between multidrug resistance and integrons was analyzed.The results showed that drug resistance rates of all G.anatis isolates to clindamycin,norfloxacin and streptomycin were above 88.52%.No less than three kinds of drugs were resisted for 19 G.anatis strains which carrying class 1 integron.Among strains resisting more than five kinds of drugs,the proportion of the class 1 integron positive (78.95%) was significantly higher than that(28.57%)of class 1 integron negative strains(P<0.01).It was the first time,to our knowledge,that the distribution of intergons in G.anatis had been investigated. Only class 1 integron was found and multidrug resistance was very common in G.anatis isolates in this study.Class 1 integron might play an important role in the formation of multiple drug resistance phenotype of G.anatis strains.

Key words:  Gallibacterium anatis, antibiotic resistance, integrons

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