BIOLOGIYA MORYA, 2004, Vol. 30, No. 2, pp. 114-119 |
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Physiological and biochemical characteristics of halophilic bacteria Vibrio parahaemolyticus and V. alginolyticus isolated from marine invertebrates of Peter the Great Bay, Sea of Japan Institute of Marine Biology, Far East Branch, Russian Academy of Sciences, Vladivostok 690041 E-mail: One hundred strains of halophilic vibrios were isolated from 16 species of marine invertebrates of Peter the Great Bay. Based on their morphological and biochemical characteristics, the bacteria were identified as Vibrio parahaemolyticus and Vibrio alginolyticus. Bacterial isolates possessed virulence enzymes (DNAase, lecithinase, catalase) and were characterized by a high enterotoxigenicity. 76% of V. parahaemolyticus strains and 43% of V. alginolyticus strains were Kanagawa-positive. The isolates showed a high adhesive capability, the average adhesion index was 18.06 cells per erythrocyte for parahemolytic vibrios and 12.55 for alginolytic vibrios. The results of this study suggest a high pathogenic potential of the isolated halophilic vibrios, which are an epidemic hazard to marine invertebrates and to humans. Key words: halophilic vibrios, marine invertebrates, pathogenic potential, enzymes. |
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