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Brazilian Journal of Microbiology

versión impresa ISSN 1517-8382versión On-line ISSN 1678-4405


ABDALLAH, Fethi Ben et al. Adherence assays and Slime production of Vibrio alginolyticus and Vibrio parahaemolyticus. Braz. J. Microbiol. [online]. 2009, vol.40, n.2, pp.394-398. ISSN 1517-8382.

In this study we investigated the phenotypic slime production of Vibrio alginolyticus and Vibrio parahaemolyticus strains, food-borne pathogens, using a Congo red agar plate assay. Furthermore, we studied their ability to adhere to abiotic surfaces and Vero cells line. Our results showed that only V. alginolyticus ATCC 17749 was a slime-producer developing almost black colonies on Congo red agar plate. Adherence to glace tube showed that all V. alginolyticus strains were more adherent than V. parahaemolyticus. Only V. alginolyticus ATCC 17749 was found to be able to form biofilm on polystyrene microplate wells (OD570 = 0.532). Adherence to Vero cells showed that all tested strains were non adherent after 30 min, however after 60 min all the studied strains become adherent. The percentage of adherence ranged from1.23% to 4.66%.

Palabras clave : Vibrio; slime production; adherence; abiotic surface; Vero cells.

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