生物技术通报 ›› 2013, Vol. 0 ›› Issue (7): 119-124.

• 研究报告 • 上一篇    下一篇

一株抗多重耐药菌海洋放线菌的筛选及其活性分析

陈美群1,2,3 冯广达2 邓名荣2 朱红惠2   

  1. (1.中国科学院南海海洋研究所,广州 510301;2.广东省微生物研究所 广东省菌种保藏与应用重点实验室 广东省华南应用微生物重点实验室——省部共建国家重点实验室培育基地 广东省微生物应用新技术公共实验室,广州 510070;3.中国科学院研究生院,北京 100049)
  • 收稿日期:2012-12-28 修回日期:2013-07-19 出版日期:2013-07-19 发布日期:2013-09-02
  • 作者简介:陈美群,女,硕士研究生,研究方向:海洋放线菌的筛选及其活性产物分析;E-mail:cmq1986007@163.com
  • 基金资助:
    广东省科技攻关项目(2010B030800011)

Screening and Characterization of a Marine Actinomycete with Antagonist Activities Against Multidrug Resistant Bacteria

Chen Meiqun1,2,3, Feng Guangda2 Deng Mingrong2 Zhu Honghui2   

  1. (1. South China Sea Institute of Oceanology,the Chinese Academy of Sciences,Guangzhou 510301;2. Guangdong Institute of Microbiology,Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application,State Key Laboratory of Applied Microbiology(Ministry-Guangdong Province Jointly Breeding Base),South China
  • Received:2012-12-28 Revised:2013-07-19 Published:2013-07-19 Online:2013-09-02

摘要: 旨在从71株海洋放线菌中筛选活性较好的抗多重耐药菌菌株。采用平板打孔抑菌法筛选对多重耐药菌的抑制作用;通过菌株形态学特征、生理生化特征和16S rDNA序列对菌株进行分类鉴定。结果显示,筛选到一株对多株多重耐药菌均有较强抑制作用的海洋放线菌MQ-86,菌株MQ-86的M 2+培养基粗提物对普通的大肠杆菌(Escherichia coli)8739、金黄色葡萄球菌(Staphylococcus aureus)6538、白色念珠菌(Candida albicans)10231和共耐18种主要抗生素的多重耐药性大肠杆菌(Escherichia coli)480、大肠杆菌(Escherichia coli)460、金黄色葡萄球菌(Staphylococcus aureus)206都有较好的抑制效果。菌株MQ-86对多株多重耐药菌均具有较强的抑制活性,经初步鉴定为小链霉菌(Streptomyces parvus)。

关键词: 海洋放线菌, 抑菌活性, 链霉菌属, 抗耐药菌

Abstract: It was to screening the antagonist activities against multidrug resistant bacteria from 71 marine actinomycetes. The inhibitory effect of 71 marine actinomycetes were detected against multidrug resistant bacteria by disk diffusion method, the strain was identified by morphological, physiological, biochemical characteristics and 16S rDNA sequence analysis. Results showed that strain MQ-86 showed strong inhibitory effect against multidrug resistant bacteria. The fermentation crude extract of strain MQ-86 using M2+ medium shows strong inhibitory effect to Escherichia coli 8739, Staphylococcus aureus 6538, Candida albicans 10231, Escherichia coli 480, Escherichia coli 460 and Staphylococcus aureus 206. Strain MQ-86 has a strong inhibitory effect against multidrug resistant organisms, which was identified as Streptomyces parvus.

Key words: Marine actinomycetes, Antibacterial activity, Streptomyces, Multidrug resistant bacteria