[Vibrio cholerae strains certification].
| Autor: | Kislichkina AA, Stepanshina VN, Nizova AV, Maĭskaia NV, Mukhina TN, Mironova RI, Shemiakin IG |
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| Jazyk: | ruština |
| Zdroj: | Zhurnal mikrobiologii, epidemiologii i immunobiologii [Zh Mikrobiol Epidemiol Immunobiol] 2012 Nov-Dec (6), pp. 22-6. |
| Abstrakt: | Aim: Certification of V. cholerae strains stored at State collection of pathogenic microorganisms and cell cultures SCPM - Obolensk. Materials and Methods: 50 V. cholerae strains were studied. Real-time PCR with primers to genes ctxA, ctxB, ace, zot, tcpA, toxR, hlyA, rtxC, rfbO1, ompU, ompW was used. Results: Membership of the studied strains in V. cholerae species was confirmed by molecular-biological methods. 46 strains belong to O1 serogroup, 42 of those - E1 Tor toxigenic, having all the virulence genes and 4 non-toxigenic strains. A strain had ace, zot, tcpA, toxR, rtxC, hlyA, ompU genes. 2 strains had ace, toxR, rtxC, hlyA genes, a strain had only toxR gene which is a global regulatory gene. 2 of the 4 serogroup O1 strains were non-toxigenic and had all the virulence genes (ctxA, ctxB, ace, zot, tcpA, toxR, rtxC, hlyA, ompU). 1 non-toxigenic strain has ace, zot, toxR, hlyA, ompUgenes, and the other - toxR, hlyAgenes. Conclusion: Genome certificates of all the V. cholerae strains stored in State collection of pathogenic microorganisms and cell cultures SCPM - Obolensk were created. Markers of epidemic threat - ctxA, ctxB, tcpA, toxR and additional virulence genes were determined. |
| Databáze: | MEDLINE |
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