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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Pseudomonas fluorescens
Category: Causes hemolysis
Etymology: Genus name: false unit
Species epithet: refers to the fluorescence of the colonies under UV-light.
Significance:  [Of minor importance]   
Taxonomy:
Phylum
Proteobacteria
Class
Gammaproteobacteria
Order
Pseudomonadales
Family
Pseudomonadaceae 
Genus
Pseudomonas
Type Strain: ATCC 13525 = CCUG 1253 = NCTC 10038.
Macromorphology (smell):
Micromorphology: Rod shaped
Gram +/Gram -:G-
Metabolism: Aerobic, but some strains are facultatively aerobic as they can utilize nitrate instead of oxygen, as a final electron acceptor in the respiratory chain.
Catalase/Oxidase:?/+
Spec. Char.: Optimal growth temperature is 25-30°C.
Reservoir: Is an environmental bacterium that can be found in soil and water.
Disease:Fin rot in especialla aquaria and aqua culture. Fin rot can also be caused by a fungal infection.
Hosts: Fish and immunocompromised humans.
Clinical Picture: The fins of the fish turn brownish black and break apart. Then the fin base becomes inflamed and the whole fin may fall off.
Virulence Factors: If the concentration of iron is low in the environment, a green fluorescent pigment, pyoverdine, is produced. Pyoverdine is a so-called siderophore.
Genome Sequence:
Acc-noStrainSize (bp)Genome
LT907842 ATCC 13525T 6 511 547  

16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
FJ972536 NO7 1434  

Taxonomy/phylogeny:
Comment:A strain of P. fluorescence (Pf-CL145A) has been used to control invasive mussel species.

Milk contaminated by P. fluorescence becomes undrinkable.

Updated:2020-06-11

News

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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