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Asian Journal of Animal and Veterinary Advances
  Year: 2012 | Volume: 7 | Issue: 7 | Page No.: 578-587
DOI: 10.3923/ajava.2012.578.587
 
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Evaluating the Antagonistic Potential of Seaweed-associated Marine Bacteria Collected from the Southwest Coast of India

Sujith Sugathan, Aseer Manilal, Joseph Selvin, Akbar Idhayadhulla, Radhakrishnan Surendra Kumar and M.V.N. Panikkar

Abstract:
Seaweed-associated marine bacteria were recognized as a potential source of antimicrobial compounds. In the present study, a total of 27 epiphytic bacteria were isolated from four species of seaweeds collected from the Kollam coast (Indian Ocean) were investigated for antagonistic activity by cross streak method. Of the 27 bacterial isolates, 4 strains inhibited the growth of at least one shrimp vibrio pathogen tested. The active strains were further subjected to agar well diffusion assay. The result indicates that among the four seaweed isolates, SWI-24 strain exhibited highest spectrum of activity against all the tested shrimp pathogens. The molecular characterization based on partial 16S rRNA sequence revealed that the active isolate SWI-24 was Pseudoalteromonas sp. The efficient antagonistic potential exhibited by the SWI-24 against pathogenic shrimp bacteria may further reflect the potential use of seaweed-associated bacteria in managing the shrimp/fish disease.
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How to cite this article:

Sujith Sugathan, Aseer Manilal, Joseph Selvin, Akbar Idhayadhulla, Radhakrishnan Surendra Kumar and M.V.N. Panikkar, 2012. Evaluating the Antagonistic Potential of Seaweed-associated Marine Bacteria Collected from the Southwest Coast of India. Asian Journal of Animal and Veterinary Advances, 7: 578-587.

DOI: 10.3923/ajava.2012.578.587

URL: https://scialert.net/abstract/?doi=ajava.2012.578.587

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