title: [Nonculturable forms of Yersinia pseudotuberculosis in the soils of a natural focus of pseudotuberculosis].
abstract: Soil samples taken from the natural focus of pseudotuberculosis, characterized by the persistent presence of Y. pseudotuberculosis, were studied. Bacteria were detected by means of polymerase chain reaction with the use of 2 test systems; one of them was specific to the chromosomal invasiveness gene (inv) and the other, to gene yopA, localized on plasmid pCad. In 10 out of 24 sample of genetic material of the total soil microflora, Y. pseudotuberculosis gene inv was detected, two of these samples being also containing gene yopA. The calculated concentration of Y. pseudotuberculosis varied 10(2)-10(4) microbial cells per 1 g of soil. Bacteriological studies yielded negative results, which is indicative of the existence of Y. pseudotuberculosis in the soil of the natural focus in the nonculturable form.
authors.forename: V V
authors.initials: VV
authors.lastname: Troitskaia
authors.forename: E V
authors.initials: EV
authors.lastname: Chetina
authors.forename: Iu S
authors.initials: IuS
authors.lastname: Aliapkina
authors.forename: V Iu
authors.initials: VIu
authors.lastname: Litvin
authors.forename: A L
authors.initials: AL
authors.lastname: Gintsburg
mesh_terms: D004269:DNA, Bacterial / Q000032:analysis; D004197:Disease Reservoirs; D005798:Genes, Bacterial; D006801:Humans; D010957:Plasmids; D016133:Polymerase Chain Reaction / Q000379:methods; D012426:Russia; D012988:Soil Microbiology; D015011:Yersinia pseudotuberculosis / Q000235:genetics / Q000302:isolation & purification*; D015012:Yersinia pseudotuberculosis Infections / Q000382:microbiology*
chemical_list: D004269:DNA, Bacterial
vernacular_title: Nekul'tiviruemye formy Yersinia pseudotuberculosis v pochvakh prirodnogo ochaga psevdotuberkuleza.