| Species/Subspecies: | Yersinia enterocolitica subsp. enterocolitica | ||||||||
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| Categories: | Zoonotic; motile | ||||||||
| Etymology: | Genus name: named after the French bacteriologist A.J.E. Yersin, who in 1894 first isolated the bacterium, which causes the plague. Species epithet: refers to intestine and colon. Subspecies epithet: see Species epithet. | ||||||||
| Significance: | [Very important] | ||||||||
| Taxonomy: | Class Gammaproteobacteria Order Enterobacteriales Family Enterobacteriaceae Genus Yersinia |
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| Type Strain: | ATCC 9610 = CCUG 11291 och 12369 = NCTC 12982. | ||||||||
| Macromorphology (smell):
| Forms small greyish colonies, which do not produce hemolysis on blood agar. | ||||||||
| Micromorphology: | Motile rods (0.5-0.8 x 1-3 µm) with peritrichous flagella. | ||||||||
| Gram +/Gram -: | G- | ||||||||
| Metabolism: | Fakultatively anaerobic | ||||||||
| Catalase/Oxidase: | +/- | ||||||||
| Other Enzymes: | Ornithine decarboxylase +, tryptophanase (-) and urease (+) | ||||||||
| Fermentation of carbohydrates: | Glucose (gas) -, Lactose -, Mannitol +, Rhamnose -, Sorbitol + och Suc +. Cf. other Yersinia spp. | ||||||||
| Spec. Char.: | Psychrotrophic | ||||||||
| Special Media:
| Small (1-2 mm in diameter) translucent colonies, which become dark red in the centre ("bull's eye") on CIN-agar. | ||||||||
| Reservoir: | Pig | ||||||||
| Disease: | Humans: yersiniosis (food poisoning). Pig: enteritis. Ewe: abortion. |
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| Hosts: | Humans, rodents, pig, sheep | ||||||||
| Clinical Picture: | |||||||||
| Genome Sequence: |
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| 16S rRNA Seq.: |
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| Taxonomy/phylogeny:
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Within the genus Yersinia, 20 species have been described, all species belong to the family Enterobacteriaceae. | ||||||||
| Legislation: | Y. enterocolitica belongs to category B as a potential bioterrorism agent according to NIAID | ||||||||
| Comment: | Mannitol and a pH indicator (neutral red) are included among other components in the CIN agar | ||||||||
| Reference(s): | No. 21 | ||||||||
| Updated: | 2021-10-11 |
