Characterization of Vibrio viscosus and Vibrio wodanis isolated at different geographical locations: a proposal for reclassification of Vibrio viscosus as Moritella viscosa comb. nov

E Benediktsdottir, L Verdonck, C Sproer, S Helgason and J Swings Institute of Biology, Microbiology Laboratory, University of Iceland, Armuli 1A, IS-108 Reykjavik, Iceland Vibrio viscosus and Vibrio wodanis are recently described species of psychrotropic bacteria that have been found associated with...

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Veröffentlicht in:International journal of systematic and evolutionary microbiology 2000-03, Vol.50 (2), p.479-488
Hauptverfasser: Benediktsdottir, E, Verdonck, L, Sproer, C, Helgason, S, Swings, J
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container_issue 2
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container_title International journal of systematic and evolutionary microbiology
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creator Benediktsdottir, E
Verdonck, L
Sproer, C
Helgason, S
Swings, J
description E Benediktsdottir, L Verdonck, C Sproer, S Helgason and J Swings Institute of Biology, Microbiology Laboratory, University of Iceland, Armuli 1A, IS-108 Reykjavik, Iceland Vibrio viscosus and Vibrio wodanis are recently described species of psychrotropic bacteria that have been found associated with a disease called 'winter ulcer', affecting salmonid fish reared in saline water in Norway, Iceland and recently in Scotland. V. viscosus and V. wodanis strains initially isolated from fish in Iceland and Norway were subjected to characterization using biochemical tests, SDS-PAGE of whole-cell proteins and a novel DNA fingerprinting method, amplified fragment length polymorphism (AFLP). The V. viscosus strains isolated from diseased fish grouped into homogeneous subgroups according to geographical origin and challenge experiments revealed that representatives of these groups are virulent. The results revealed that the V. wodanis strains are heterogeneous genotypically and phenotypically. Sequencing of almost complete 16S rRNA genes of V. viscosus and V. wodanis revealed that V. viscosus showed a 99.1% sequence similarity to Moritella marina and V. wodanis showed a 98.8% sequence similarity to Vibrio logei CIP 103204. A reclassification of Vibrio viscosus as Moritella viscosa comb. nov. is proposed.
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V. viscosus and V. wodanis strains initially isolated from fish in Iceland and Norway were subjected to characterization using biochemical tests, SDS-PAGE of whole-cell proteins and a novel DNA fingerprinting method, amplified fragment length polymorphism (AFLP). The V. viscosus strains isolated from diseased fish grouped into homogeneous subgroups according to geographical origin and challenge experiments revealed that representatives of these groups are virulent. The results revealed that the V. wodanis strains are heterogeneous genotypically and phenotypically. Sequencing of almost complete 16S rRNA genes of V. viscosus and V. wodanis revealed that V. viscosus showed a 99.1% sequence similarity to Moritella marina and V. wodanis showed a 98.8% sequence similarity to Vibrio logei CIP 103204. 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V. viscosus and V. wodanis strains initially isolated from fish in Iceland and Norway were subjected to characterization using biochemical tests, SDS-PAGE of whole-cell proteins and a novel DNA fingerprinting method, amplified fragment length polymorphism (AFLP). The V. viscosus strains isolated from diseased fish grouped into homogeneous subgroups according to geographical origin and challenge experiments revealed that representatives of these groups are virulent. The results revealed that the V. wodanis strains are heterogeneous genotypically and phenotypically. Sequencing of almost complete 16S rRNA genes of V. viscosus and V. wodanis revealed that V. viscosus showed a 99.1% sequence similarity to Moritella marina and V. wodanis showed a 98.8% sequence similarity to Vibrio logei CIP 103204. 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subjects Animals
Bacteriology
Biological and medical sciences
Electrophoresis, Polyacrylamide Gel
Fish Diseases - microbiology
Fish Diseases - pathology
Fundamental and applied biological sciences. Psychology
Genes, rRNA
Genotype
Iceland
Microbiology
Molecular Sequence Data
Norway
Phenotype
Polymorphism, Restriction Fragment Length
RNA, Ribosomal, 16S - genetics
Salmo salar
Sequence Analysis, DNA
Systematics
Vibrio - classification
Vibrio - isolation & purification
Vibrio - pathogenicity
Vibrio - physiology
Vibrio Infections - microbiology
Vibrio Infections - pathology
Vibrio Infections - veterinary
title Characterization of Vibrio viscosus and Vibrio wodanis isolated at different geographical locations: a proposal for reclassification of Vibrio viscosus as Moritella viscosa comb. nov
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