ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2016, Vol. 47 ›› Issue (8): 1676-1681.doi: doi: 10.11843/j.issn.0366-6964.2016.08.019

Previous Articles     Next Articles

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:2016-08-23

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.

CLC Number: