海洋学研究 ›› 2015, Vol. 33 ›› Issue (4): 77-82.DOI: 10.3969/j.issn.1001-909X.2015.04.009

• 研究报道 • 上一篇    下一篇

宁波-舟山港口航道3种致病性细菌毒力特征与耐药性

管峰1,2, 高威1, 陈吉刚1,2, 毛芝娟1,2, 杨季芳*1,2   

  1. 1.浙江万里学院 生物与环境学院 浙江 宁波 315100;
    2.宁波市微生物与环境工程重点实验室 浙江 宁波 315100
  • 收稿日期:2015-05-08 修回日期:2015-05-28 出版日期:2015-12-15 发布日期:2022-11-28
  • 通讯作者: *杨季芳(1963—),男,研究员,主要从事海洋微生物(病毒)生态过程、病原微生物病原病理学研究。E-mail:jfkwlq@163.com
  • 作者简介:管峰(1985—),男,江苏淮安市人,实验师,主要从事环境病原微生物研究。E-mail:guanfengxy@163.com
  • 基金资助:
    国家海洋公益性行业科研专项项目资助(201105007-7-Ⅱ)

Virulence characteristics and antimicrobial susceptibility of three pathogenic bacteria isolated from the channels and ports in Ningbo and Zhoushan

GUAN Feng1,2, GAO Wei1, CHEN Ji-gang1,2, MAO Zhi-juan1,2, YANG Ji-fang*1,2   

  1. 1. Faculty of Biological & Environmental Science, Zhejiang Wanli University, Ningbo 315100, China;
    2. Municipal Key Laboratory of Microorganism and Environmental Engineering, Ningbo 315100, China
  • Received:2015-05-08 Revised:2015-05-28 Online:2015-12-15 Published:2022-11-28

摘要: 本文调查分析了宁波-舟山港口航道副溶血弧菌 Vibrio parahemolyticus、溶藻弧菌Vibrio alginolyticus和嗜水气单胞菌 Aeromonas hydrophila的毒力特征和耐药性特点。用PCR方法检测分离菌株的毒力基因分布模式发现,副溶血弧菌毒力基因型以gyrB+,toxR+,tlh+ tdh+为代表,溶藻弧菌毒力基因型以aspA+,tlh+,collagenase+toxS+为代表,嗜水气单胞菌毒力基因型以aerA+,alt+,aha1+hlyA+为代表;副溶血弧菌、溶藻弧菌和嗜水气单胞菌代表菌株相应基因的检出率分别为57.1%、40.0%和50.0%。用24种常见抗生素对3种细菌的分离代表菌株进行药敏调查,耐药率分别为4.17%、8.33%和29.17%。实验结果表明宁波-舟山港口航道3种致病性细菌具备较丰富的毒力基因种类和耐药性,需要有针对性地制定预防措施。此外,鉴于毒力基因型与致病性之间的相关性,毒力基因可作为标记基因,用于致病性细菌的检测。

关键词: 港口航道, 致病菌, 毒力基因, 耐药性

Abstract: Virulence characteristics and antimicrobial susceptibility of Vibrio parahaemolyticus(VP), Vibrio alginolyticus(VA) and Aeromonas hydrophila(AH) isolated from the channels and ports in Ningbo and Zhoushan were investigated. The distribution patterns of virulent genes in isolated pathogenic bacteria are found that VP is represented by tlh+, toxR+, gyrB+ and tdh+; VA is represented by aspA+, tlh+, collagenase+ and toxS+; AH is represented by aerA+, alt+, aha1+ and hlyA+. The detection rates of relevant genes in representative strains for these three kinds of bacteria are 57.1%, 40.0%, 50.0%. 24 common kinds of drug resistance rates of representative strains are 4.17%, 8.33% and 29.17% respectively. The results show that harmful characteristics of the pathogenic bacteria are found in Ningbo-Zhoushan, and the right defense measures needed to make to prevent them. Moreover, the correlation of virulence genotypes and pathogenicity of the bacteria show that virulent genes can be chosen as gene-markers to detect pathogenic strains of bacteria.

Key words: channels and ports, pathogenic bacteria, virulent gene, antimicrobial susceptibility

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