Isolation and characterization of Flavobacterium columnare strains infecting fishes inhabiting the Laurentian Great Lakes basin

© 2016 John Wiley & Sons Ltd.

Détails bibliographiques
Publié dans:Journal of fish diseases. - 1998. - 40(2017), 5 vom: 23. Mai, Seite 637-648
Auteur principal: Faisal, M (Auteur)
Autres auteurs: Diamanka, A, Loch, T P, LaFrentz, B R, Winters, A D, García, J C, Toguebaye, B S
Format: Article en ligne
Langue:English
Publié: 2017
Accès à la collection:Journal of fish diseases
Sujets:Journal Article Columnaris disease Fish disease Flavobacterium Genomovar I Great Lakes DNA, Bacterial RNA, Ribosomal, 16S
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520 |a Flavobacterium columnare, the aetiological agent of columnaris disease, causes significant losses in fish worldwide. In this study, the prevalence of F. columnare infection was assessed in representative Great Lakes fish species. Over 2000 wild, feral and hatchery-propagated salmonids, percids, centrarchids, esocids and cyprinids were examined for systemic F. columnare infections. Logistic regression analyses showed that the prevalence of F. columnare infection varied temporally and by the sex of the fish, whereby females had significantly higher prevalence of infection. A total of 305 isolates of F. columnare were recovered. Amplification of the near complete 16S rRNA gene from 34 representative isolates and subsequent restriction fragment length polymorphism analyses demonstrated that all belonged to F. columnare genomovar I. Phylogenetic analysis of near complete 16S rRNA gene sequences also placed the isolates in genomovar I, but revealed some intragenomovar heterogeneity. Together, these results suggest that F. columnare genomovar I is widespread in the Great Lakes Basin, where its presence may lead to mortality 
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700 1 |a Loch, T P  |e verfasserin  |4 aut 
700 1 |a LaFrentz, B R  |e verfasserin  |4 aut 
700 1 |a Winters, A D  |e verfasserin  |4 aut 
700 1 |a García, J C  |e verfasserin  |4 aut 
700 1 |a Toguebaye, B S  |e verfasserin  |4 aut 
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