Veterinary bacteriology: information about important bacteria
|Etymology:||Genus name: false unit|
Species epithet: refers to the fluorescence of the colonies under UV-light.
|Significance:||[Of minor importance]|
|Type Strain:||ATCC 13525 = CCUG 1253 = NCTC 10038.|
|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.|
|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.|
|16S rRNA Seq.:|
|Comment:||A strain of P. fluorescence (Pf-CL145A) has been used to control invasive mussel species.
Milk contaminated by P. fluorescence becomes undrinkable.
|New names of bacterial phyla|
The taxonomic category phylum was previously not regulated by the International Code of Nomenclature of Prokaryotes (ICNP), but now this has changed and it was decided to revise the names of bacterial phyla. All phyla must be written in italics (which has been done on VetBact also before) and have the ending -ota.Published 2023-03-01. Read more...
|The taxonomy of chlamydias|
Species within the family Chlamydiaceae were previously divided into two genera Chlamydia and Chlamydophila. However, the differences between these two genera were not that great and many research groups have not accepted this division. Therefore, the genus Chlamydophila has been returned to the genus Chlamydia and this change has now been incorporated in VetBactPublished 2023-03-15. Read more...