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Veterinary bacteriology: information about important bacteria
Veterinary bacteriology

Species/Subspecies: Yersinia pseudotuberculosis
Categories: Zoonotic; motile
Etymology: Genus name: named after the French bacteriologist A.J.E. Yersin, who in 1894 first isoleted the bacterium which causes the plague.
Species epithet: from false tuberculosis.
Significance:  [Important]   
Type Strain: ATCC 29833 = CCUG 5855 = NCTC 10275
Macromorphology (smell):
Micromorphology: Motile rods with peritrichous flagella
Gram +/Gram -:G-
Metabolism: Facultatively anaerobic
Other Enzymes: Tryptophanase - and urease +
Fermentation of carbohydrates: Glucose(gas) -, Mannitol +, Rhamnose +, Sorbitol + and Sucrose -. Cf. other Yersinia spp.
Spec. Char.:
Disease:Animals: pseudotuberculosis.
Man: Food poisoning
HostsDiseaseClinical picture
Hares, rabbits, guinea-pigs and other rodents, captive birds and deerPseudotuberculosisCaseous abscesses in mesenteric lymphnodes spreading to spleen and liver and other tissues. Septicemia with high mortality
HumansPseudotuberculosisAbdominal pain, mesenteric lymphadenitis, however uncommon in humans
SheepPseudotuberculosisOrchitis and epididymitis
Virulence Factors: The virulence plasmid common to pathogenic Yersinia species encodes a number of secreted proteins denoted Yops (Yersinia outer proteins). A novel plasmid-encoded virulence determinant of Yersinia pseudotuberculosis, YopK has recently been identified.
Genome Sequence:
Acc-noStrainSize (bp)Genome
NC_006155 IP32953 4 744 671 1c + 2c 
At least 4 strains have been sequnced and 0-2 plasmids have been rapported in these strains.

16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
AF366375 ATCC 29833T 1461 

Within the genus Yersinia, 20 species have been described. All species belong to the family Enterobacteriaceae.
Reference(s): No. 174


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