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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
Actinobacteria
Class
Actinobacteria
Order
Corynebacteriales
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:2020-11-05

News

"Dear child has many names" (call it what you will...)

For a long time, Rhodococcus hoagii was refer­red to Rhodo­coccus equi on VetBact, because we experienced some resistance to the name that is now considered to be the correct one, i.e. Rhodococcus hoagii. Now you can find the bacterium in question under the correct name in VetBact, but you can also find the bacterium when searching for the old name. 

Published 2021-10-10. Read more...

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