Abstract
Four antibiotic producing bacteria were isolated from the surface of the marine sponge Pseudoceratina purpurea and exposed to living cells of two human pathogenic bacteria as well as some marine fouling bacteria to induce the production of antimicrobial activity. Experimental results showed that these four marine epibiotic bacteria enhanced their antibacterial production, when exposed to these test strains. The highest induction was exhibited by the sponge isolate PS79 against fouling bacterium FB-9 (from 3 mm to 7 mm inhibition zone). All the four strains were induced and showed increased activity specifically against the challenged pathogenic or fouling bacteria tested. Specific induction by these species suggests that the induction might be attributed to the response to the chemical signals received from potential challenger strains.
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We appreciate Grace Muthumani for the revision of the manuscript. We wish to thank two anonymous reviewers for their elaborate and helpful comments.
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Kanagasabhapathy, M., Nagata, S. Cross-species induction of antibacterial activity produced by epibiotic bacteria isolated from Indian marine sponge Pseudoceratina purpurea . World J Microbiol Biotechnol 24, 687–691 (2008). https://doi.org/10.1007/s11274-007-9525-1
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DOI: https://doi.org/10.1007/s11274-007-9525-1