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High potential of adhesion to abiotic and biotic materials in fish aquaculture facility by Vibrio alginolyticus strains

Snoussi, Mejdi and Noumi, Emira and Hajlaoui, Hafedh and Usai, Donatella and Sechi, Leonardo Antonio and Zanetti, Stefania Anna Lucia and Bakhrouf, Amina (2008) High potential of adhesion to abiotic and biotic materials in fish aquaculture facility by Vibrio alginolyticus strains. Journal of Applied Microbiology, Vol. 106 (5), p. 1591-1599. eISSN 1365-2672. Article.

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DOI: 10.1111/j.1365-2672.2008.04126.x


Aims: The ability of Vibrio alginolyticus strains isolated from Sparus aurata and Dicentrarchus labrax nursery to adhere to epithelial cell lines (Hep-2 and Caco-2), fish mucus and their ability to form a biofilm on different surfaces (glass, polystyrene, polyethylene and polyvinyl-chloride) was investigated in this study. Methods and Results: The extracellular products were rich in enzymes and the strains were haemolytic on Wagatsuma agar and possessed several hydrolytic exoenzymes such as proteases, DNase and lipases. Most strains tested were multiresistant to the 17 antibiotics tested including those used in the farm to treat vibriosis. Conclusions: These bacteria were able to form a biofilm on all the surfaces tested and the cell density was the highest on the PVC surface followed by that on the glass slides, polystyrene and the polyethylene surface. More than 50% of the tested strains were adhesive to the epithelial cell lines (Hep-2 and Caco-2). Significance and Impact of the Study: These properties allow these bacteria to survive, proliferate and persist in all stages of fish rearing nursery even after seawater treatment with UV light.

Item Type:Article
ID Code:1855
Uncontrolled Keywords:Adhesion, biofilm, Hep-2/Caco-2, slime production, Vibrio alginolyticus
Subjects:Area 06 - Scienze mediche > MED/07 Microbiologia e microbiologia clinica
Divisions:001 Università di Sassari > 01 Dipartimenti > Scienze biomediche
Publisher:For the Society for Applied Bacteriology by Blackwell Science / Wiley
Copyright Holders:© 2009 The Authors, Journal compilation © 2009 The Society for Applied Microbiology
Deposited On:18 Aug 2009 10:06

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