| Species/Subspecies: | Corynebacterium ulcerans | ||||||||
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| Categories: | Zoonotic; causes hemolysis | ||||||||
| Etymology: | Genus name: club-shaped bakterium (bacterium means small rod). Species epithet: causing sore. | ||||||||
| Significance: | [Of minor importance] | ||||||||
| Taxonomy: | Class Actinomycetia Order Mycobacteriales Family Corynebacteriaceae Genus Corynebacterium |
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| Type Strain: | ATCC 51799 = CCUG 2708 = NCTC 7910. | ||||||||
| Macromorphology (smell): | |||||||||
| Micromorphology: | Non-motile pleomorphic and coccoid rods. | ||||||||
| Gram +/Gram -: | G+ | ||||||||
| Metabolism: | Aerobic | ||||||||
| Catalase/Oxidase: | +/- | ||||||||
| Other Enzymes: | Esculinase -, hippuricase +, urease +. | ||||||||
| Biochemical Tests: | Methyl red +. | ||||||||
| Fermentation of carbohydrates: | D-glucose + lactose - maltose + L-rhamnose ? sucrose - L-arabinose ? cellobiose ? D-mannitol v salicin ? trehalose - glycerol ? inulin ? raffinose ? D-sorbitol ? starch ? |
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| Spec. Char.: | |||||||||
| Special Media: | |||||||||
| Disease: | Bovine mastitis.
Abscesses (gangrenous dermatitis) in rodents. Human pharyngitis. |
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| Hosts: | Cattle, rodents, humans | ||||||||
| Clinical Picture: | |||||||||
| Virulence Factors: | Some strains of C. ulcerans are able to produce difteria toxin (see Corynebacterium diphtheria). | ||||||||
| Genome Sequence: |
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| 16S rRNA Seq.: |
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| Taxonomy/phylogeny:
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176 species and 13 subspecies are described within the genus Corynebacterium. However, not all names have been approved yet and some species have been affiliated to another genus. The genus Corynebacterium is closely related to the genera Mycobacterium, Nocardia, Rhodococcus and Crossiella. | ||||||||
| Comment: | C. ulcerans may cause zoonosis. | ||||||||
| Updated: | 2023-03-02 |