Biotechnology Bulletin ›› 2013, Vol. 0 ›› Issue (7): 119-124.

• Study Report • Previous Articles     Next Articles

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 Online:2013-07-19 Published:2013-09-02

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