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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Flavobacterium psychrophilum
Category: Motile
Etymology: Genus name: A yellow small rod.
species epithet: cold loving.
Significance:  [Of minor importance]   
Alternative Species Name(s):Flexibacter psychrophilus
Taxonomy:
Phylum
Bacteroidetes
Class
Flavobacteriia
Order
Flavobacteriales
Family
Flavobacteriaceae 
Genus
Flavobacterium
Type Strain: ATCC 49418 = CCUG 35200.
Macromorphology (smell):
     
 
Forms small yellow colonies (1-2 mm in diameter). Produce a pigment.
Micromorphology: Thin rods (0.3-0.5 x 2-5 µm) with rounded or tapered ends, which sometimes form long filaments (see picture under Gram staining). The bacterium is motile by gliding on surfaces.
Gram +/Gram -:
 
G-
Metabolism: Aerobic
Catalase/Oxidase:
Spec. Char.:
Disease:Rainbow trout fry syndrom (RTFS), bacterial cold-water disease (BCWD)
Hosts: Salmonid fishes
Clinical Picture:
Genome Sequence:
Acc-noStrainSize (bp)Genome
NC_009613 JIP02/86 2 861 988 1c + 0 

16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
AF090991 ATCC49418T 1 424 

Taxonomy/phylogeny:
 
About 130 species have been described within the genus Flavobacterium. These species are environmental bacteria which are found in soil and freshwater. The genus Flavobacterium is relatively closely related to the genus Riemerella, which also belongs to the family Flavobacteriaceae.
Comment:Cause problems in fish farming.
Reference(s): No. 3
Updated:2016-03-08

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The revised taxonomy of the mollicutes

The revised taxonomy of mollicutes (mycoplasmas) has now been introduced on VetBact, which means that many of the species have been given new genus names or moved to another higher taxon. 

Published 2021-11-25. Read more...

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