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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Erysipelothrix tonsillarum
Category: Causes hemolysis
Etymology: Genus name: erysipelas thread.
Species epithet: of the tosils.
Significance:  [Of minor importance]   
Taxonomy:
Phylum
Firmicutes
Class
Erysipelotrichia
Order
Erysipelotrichales
Family
Erysipelothrichaceae 
Genus
Erysipelothrix
Type Strain: T-305 = ATCC 43339 = CCUG 31352.
Macromorphology (smell): Small (1 mm in diameter), transparent and nonpigmented colonies. Gives a norrow zone of α hemolysis on blood agar.
Micromorphology: Rods (0.3 x 1.0-1.5 µm), which appear singly, in pairs (V-shape) or in short chains.
Gram +/Gram -:G+
Metabolism: Facultatively anaerobic
Catalase/Oxidase:-/-
Fermentation of carbohydrates:
D-glucoselactosemaltoseL-rhamnosesucrose
+++-+
L-arabinosecellobioseD-mannitolsalicintrehalose
-?---
glycerolinulinraffinoseD-sorbitolstarch
-?--?
Galactose is also fermented.
Spec. Char.:
Disease:Endocarditis (inflamation in the heart valves).
Hosts: Dog
Clinical Picture:
16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
AB055906 ATCC 43339T 1594  

Taxonomy/phylogeny:
 
Many serotypes of E. rhusiopathiae have been reclassified to the new species E. tonsillarum. However, these two species are very closely related (see the phylogenetic tree in Fig. 227:1).
Comment:Has been isolated from tonsils of apparently healthy pigs.
Updated:2016-01-14

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