PMID: 25730803Mar 3, 2015Paper

Broad spectrum anti-microbial compounds producing bacteria from coast of Qingdao bays

Pakistan Journal of Pharmaceutical Sciences
Muhammad Naseem KhanMuhammad Aslam Buzdar

Abstract

Anti-microbial resistance burden and hazard associated with chemical treatment of infections demanded for new anti-microbial natural products. Marine associated microorganisms are the enormous source of bioactive compounds. In this study we have isolated 272 marine bacteria among them 136 (50%) were antagonistic to at least one of the four pathogenic strains Listeria monocytogenes, Vibrio cholerae, E. coli and S. aureus. Only two strains exhibited antibacterial activity against all four test strains, which were identified by 16S rDNA sequencing as Bacillus sp. DK1-SA11 and Vibrio sp. DK6-SH8. Marine isolate DK1-SA11 has potential to resist boiling temperature and pH 2-12. Furthermore cell free extract (CFE) inhibited all test organisms including superbug MRSA and pathogenic yeast Candida albicans. Marine isolate Bacillus sp. DK1-SA11 could be a potential combatant for the battle of drugs and bugs.

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