| Species/Subspecies: | Erysipelothrix tonsillarum | ||||||||
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| Category: | Causes hemolysis | ||||||||
| Etymology: | Genus name: erysipelas thread. Species epithet: of the tosils. | ||||||||
| Significance: | [Of minor importance] | ||||||||
| Taxonomy: | Class Erysipelotrichia Order Erysipelotrichales Family Erysipelothrichaceae Genus Erysipelothrix |
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| 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-glucose + lactose + maltose + L-rhamnose - sucrose + L-arabinose - cellobiose ? D-mannitol - salicin - trehalose - glycerol - inulin ? raffinose - D-sorbitol - starch ? |
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| Spec. Char.: | |||||||||
| Special Media: | |||||||||
| Disease: | Endocarditis (inflamation in the heart valves). |
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| Hosts: | Dog | ||||||||
| Clinical Picture: | |||||||||
| 16S rRNA Seq.: |
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| Taxonomy/phylogeny:
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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: | 2023-03-08 |