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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology
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Species/Subspecies: Pseudomonas fluorescens
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.
Hosts: Fish and immunocompromised humans.
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.
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

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