Cross-species induction of antibacterial activity produced by epibiotic bacteria isolated from Indian marine sponge Pseudoceratina purpurea

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 the...

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Bibliographic Details
Published in:World journal of microbiology & biotechnology 2008-05, Vol.24 (5), p.687-691
Main Authors: Kanagasabhapathy, Manmadhan, Nagata, Shinichi
Format: Article
Language:English
Subjects:
Antibacterial activity
Antibiotics
Antimicrobial agents
Applied Microbiology
Aquatic life
Bacteria
bioassays
Biochemistry
biofilm
Biological and medical sciences
Biomedical and Life Sciences
Biotechnology
Competition
Environmental Engineering/Biotechnology
Epibiotic bacteria
Fouling
Fundamental and applied biological sciences. Psychology
Gram-positive bacteria
Life Sciences
Marine sponge
Metabolites
Microbiology
Original Paper
Studies
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Summary: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.
ISSN:0959-3993
1573-0972
DOI:10.1007/s11274-007-9525-1