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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Dermatophilus congolensis
Categories: Zoonotic; causes hemolysis
Etymology: Genus name: skin loving
Species epithet: of Congo.
Significance:  [Important]   
Taxonomy:
Phylum
Actinobacteria
Class
Actinobacteria
Order
Micrococcales
Family
Dermatophilaceae 
Genus
Dermatophilus
Type Strain: ATCC 14637 = NCTC 13039.
Macromorphology (smell):
   
Small yellow pigmented colonies (1-3 mm in diameter) with a rough surface. Give hemolysis on blood agar (but not with horse blood).
Micromorphology: Has two formas: filamentous, pleomorphic and nonmotile and motile zoospores (0.6-1 µm in diameter).
Gram +/Gram -:G+
Metabolism: Facultatively anaerobic
Catalase/Oxidase:+/-
Other Enzymes: Tryptophanase (indole) -, urease +.
Biochemical Tests: Methyl red -, Voges-Proskauer -.
Fermentation of carbohydrates:
D-glucoselactosemaltoseL-rhamnosesucrose
+-+?-
L-arabinosecellobioseD-mannitolsalicintrehalose
??--?
glycerolinulinraffinoseD-sorbitolstarch
???-+
Ferments also fructose under acid production.
Spec. Char.:
Disease:Dermatophilosis (mud fever), streptotrichosis or rain-scald.
HostsDiseaseClinical picture
Horse, cattle and goatDermatophilosis, streptotrichosis or rain-scaldCrust formation (scab) in the skin and hair loss
SheepLumpy wool diseaseScab formation
16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
AJ243918 (T) 1464  

Taxonomy/phylogeny:
 
The genus Dermatophilus is composed of only one species, which is related to the genera Renibacterium and Micrococcus.
Comment:Opportunist
Updated:2022-09-16

News

New names of taxa within the classification category phylum

During October 2021, an article was published by A. Oren och G.M. Garrity, in which new names are proposed for a number of taxa within the classification category phylum. This has resulted in many discussions in social media about whether it was really necessary to make these changes, which have created confusion among microbiologists and other professionals who come into contact with bacteriology.

Published 2022-09-28. Read more...

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