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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:2022-01-13

News

New families introduced within the order Enterobacterales
Phylogenetic tree for the order <i>Enterobacteriales</i>.

The order Enterobacterales (formerly called Enterobacteriales) previously consisted of bacteria with different properties and phylogenetically, these bacteria were far apart. In order for the taxonomy to be more in line with phylogeny, some of these bacteria have, therefore, been sorted into 6 new families.

Published 2022-04-13. Read more...

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