title: [Influence of increased partial argon and nitrogen pressure on the R-plasmid Escherichia coli transfer frequency].
abstract: Subject of the study was frequency of transfer of bacterial plasmids determining the antibiotic resistance (R-plasmid) in argon-containing gas mixtures. Investigated were reference strains of Escherichia coli K-12. Conjugation took place during incubation in pAr/pN2/pO2, ata (1 ata = 10(5) kPa): No. 1 - 0.0/0.8/0.2 (air control); No. 2 - 1.0/0.8/0/2; No. 3 - 0.0/1.8/0.2; No. 4 - 1.0/1.8/0.2. E.coli conjugation was found inhibited after 24 hrs. of incubation with pAr elevated to 1 ata, whereas elevated partial pressure of argon (1 ata) and nitrogen (1.8 ata) brought transfer frequency down to the minimum.
authors.forename: V K
authors.initials: VK
authors.lastname: Il'in
authors.forename: P E
authors.initials: PE
authors.lastname: Soldatov
authors.forename: Z O
authors.initials: ZO
authors.lastname: Solov'eva
authors.forename: I A
authors.initials: IA
authors.lastname: Smirnov
authors.forename: L A
authors.initials: LA
authors.lastname: Lysenko
mesh_terms: D000818:Animals; D001128:Argon / Q000494:pharmacology*; D004735:Energy Transfer; D004926:Escherichia coli / Q000187:drug effects*; D009584:Nitrogen / Q000494:pharmacology*; D011312:Pressure; D011815:R Factors / Q000187:drug effects*
chemical_list: D001128:Argon; D009584:Nitrogen