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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
Actinomycetota
Class
Actinomycetia
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-glucose
+
lactose
-
maltose
+
L-rhamnose
?
sucrose
-
L-arabinose
?
cellobiose
?
D-mannitol
-
salicin
-
trehalose
?
glycerol
?
inulin
?
raffinose
?
D-sorbitol
-
starch
+
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:2023-03-02

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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...
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Published 2023-03-15. Read more...

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