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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Mycobacterium ulcerans
Category: Primarily of interest in human medicin
Etymology: Genus name: small fungus-like rod.
Species epithet: cause ulceration
Significance:  [Of minor importance]   
Taxonomy:
Phylum
Actinomycetota
Class
Actinomycetia
Order
Mycobacteriales
Family
Mycobacteriaceae 
Genus
Mycobacterium
Type Strain: ATCC 19423 =NTCC 10417
Macromorphology (smell):
Micromorphology: Acid-fast rods
Gram +/Gram -:G+ (but difficult to gram stain)
Catalase/Oxidase:
Spec. Char.: M. ulcerans is a slow grower (it takes more than 7 days to see colonies with the naked eye).
Disease:Ulcerative skin infections.
Hosts: Humans
Clinical Picture: Ulcerative skin infections.
Virulence Factors: Forms an extrcellular heat-labile toxin.
16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
X88926 Borstel 10564/70 1457  

Taxonomy/phylogeny:
 
About 175 species have been described within genus Mycobacterium and this genus is closely related to Rhodococcus, Nocardia and Corynebacterium. M. ulcerans is very closely related to M. marinum.
Updated:2023-03-02

News

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 VetBact

Published 2023-03-15. Read more...

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