畜牧兽医学报 ›› 2026, Vol. 57 ›› Issue (1): 360-368.doi: 10.11843/j.issn.0366-6964.2026.01.031

• 预防兽医 • 上一篇    下一篇

15种血清型的鸭疫里默氏杆菌毒力基因检测和耐药性分析

李晨阳1(), 张传美2, 惠宇韬2, 吕莹2, 杨敏1()   

  1. 1.甘肃农业大学动物医学院,兰州 730070
    2.青岛农业大学动物医学院,青岛 266109
  • 收稿日期:2025-04-16 出版日期:2026-01-23 发布日期:2026-01-26
  • 通讯作者: 杨敏 E-mail:1003354610@qq.com;yummy12@163.com
  • 作者简介:李晨阳,博士,讲师,主要从事动物病原菌的耐药性研究,E-mail:1003354610@qq.com

Detection of Virulence Genes and Drug Resistance Analysis of 15 Serotypes of Riemerella anatipestifer

LI Chenyang1(), ZHANG Chuanmei2, HUI Yutao2, LÜ Ying2, YANG Min1()   

  1. 1.College of Veterinary Medicine,Gansu Agricultural University,Lanzhou 730070,China
    2.College of Veterinary Medicine,Qingdao Agricultural University,Qingdao 266109,China
  • Received:2025-04-16 Online:2026-01-23 Published:2026-01-26
  • Contact: YANG Min E-mail:1003354610@qq.com;yummy12@163.com

摘要:

旨在了解我国部分地区鸭疫里默氏杆菌分离株的耐药性及毒力基因分布情况,采用K-B法测定15种血清型鸭疫里默氏杆菌对10种临床常用抗菌药物的敏感性,同时采用PCR技术对不同血清型RA分离株进行了16种耐药基因和16种毒力基因的检测。结果表明,菌株对阿莫西林的耐药率为93.33%,对氨苄西林的耐药率为80%;耐药基因检测结果显示,四环素类的tet(X)基因、酰胺醇类的floR基因、氨基糖苷类的aph(3')-Ⅱ基因的检出率分别为93.33%、80%、73.33%。毒力基因检测结果显示,tctR、TbdR1、TRCAMPAS87-0405毒力基因检出率最高,分别为86.67%、86.67%、80%、73.33%、73.33%。这些分离株对四环素类、喹诺酮类、酰胺醇类药物较敏感,对β-内酰胺类药物具有较高的耐药性;同时这些分离株携带多种毒力基因,可能预示着其具有较强毒力。以上结果为我国部分地区鸭疫里默氏杆菌病防控提供了一定的参考依据。

关键词: 鸭疫里默氏杆菌, 毒力基因, 耐药基因, 耐药性

Abstract:

In order to understand the drug resistance and virulence gene distribution of Riemerella anatipestifer isolates in some areas of China, K-B method was used to determine the sensitivity of 15 serotypes of R. anatipestifer to 10 commonly used antibiotics, and PCR technology was used to detect 16 drug resistance genes and 16 virulence genes of different serotypes of R. anatipestifer isolates. The results showed that the resistance rates of amoxicillin and ampicillin were 93.33% and 80%, respectively. The detection results of drug-resistant genes showed that the detection rates of tet(X) gene of tetracycline, floR gene of amide alcohol and aph(3')-Ⅱ gene of aminoglycoside were 93.33%, 80% and 73.33% respectively. The results of virulence gene detection showed that tctR, TbdR1, TRCAMP and AS87-0405 had the highest detection rates, which were 86.67%, 86.67%, 80%, 73.33% and 73.33% respectively. These isolates are sensitive to tetracyclines, quinolones and amide alcohols, and have high resistance to β-lactams. At the same time, these isolates carry a variety of virulence genes, which may indicate that they have strong virulence. The above results provide some reference for the prevention and control of R. anatipestifer in some areas of China.

Key words: Riemerella anatipestifer, virulence gene, drug resistance gene, drug-fast

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