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Characterization of flavobacteria possibly associated with fish and fish farm environment. Description of three novel Flavobacterium species: Flavobacterium collinsii sp nov., Flavobacterium branchiarum sp nov., and Flavobacterium branchiicola sp nov

Journal article
Authors L. Zamora
A. I. Vela
C. Sanchez-Porro
M. A. Palacios
L. Dominguez
Edward R.B. Moore
A. Ventosa
J. F. Fernandez-Garayzabal
Published in Aquaculture
Volume 416
Pages 346-353
ISSN 0044-8486
Publication year 2013
Published at Institute of Biomedicine, Department of Infectious Medicine
Pages 346-353
Language en
Links dx.doi.org/10.1016/j.aquaculture.20...
Keywords Flavobacteria, Trout, Environment, Fish farm, ONCORHYNCHUS-MYKISS, EMENDED DESCRIPTION, MAXIMUM-LIKELIHOOD, RAINBOW-TROUT, JOHNSONIAE, FAMILY, LEY J, 1970, ANTONIE VAN LEEUWENHOEK JOURNAL OF MICROBIOLOGY AND SEROLOGY, V36, P461, ACKEBRANDT E, 1994, INTERNATIONAL JOURNAL OF SYSTEMATIC BACTERIOLOGY, V44, P846
Subject categories Marine ecology

Abstract

Members of the genus Flavobacterium are widely distributed microorganisms that can be recovered from a wide variety of environments. There has been an increase in the number of species isolated from fish or fish farm environments, some of thempossibly associated with disease. Fourteen Flavobacterium-like isolates recovered from gills, surface of eggs and liver of rainbow trout were characterized by a polyphasic study that included a deep phenotypic, chemotaxonomic, genotypic and phylogenetic analysis. Comparative 16S rRNA gene analysis revealed that isolates represented three separate phylogenetic groups (A-C) within the genus Flavobacterium. Further genotypic and phenotypic data demonstrated that they represent three novel species of the genus Flavobacterium for which the names Flavobacterium collinsii, Flavobacterium branchiarum and Flavobacterium branchiicola are proposed. Most isolates of the three species were collected from gills indicating that they are probably commensal organisms that are able to colonize this tissue. However, some strains were recovered from the liver of two different trout, suggesting their ability to infect trout. (C) 2013 Elsevier B. V. All rights reserved.

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