|Species/Subspecies:||Yersinia enterocolitica subsp. enterocolitica|
|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.
|Type Strain:||ATCC 9610 = CCUG 11291 och 12369 = NCTC 12982.|
||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-|
|Other Enzymes:||Ornithine decarboxylase +, tryptophanase (-) and urease (+)|
|Fermentation of carbohydrates:||Glucose (gas) -, Lactose -, Mannitol +, Rhamnose -, Sorbitol + och Suc +. Cf. other Yersinia spp.|
||Small (1-2 mm in diameter) translucent colonies, which become dark red in the centre ("bull's eye") on CIN-agar.|
|16S rRNA Seq.:|
||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, 174|
|New names of taxa within the classification category phylum|
During October 2021, an article was published by A. Oren och G.M. Garrity, in which new names are proposed for a number of taxa within the classification category phylum. This has resulted in many discussions in social media about whether it was really necessary to make these changes, which have created confusion among microbiologists and other professionals who come into contact with bacteriology.Published 2022-09-28. Read more...