title: [Ratio [13C]/[12C] as an index for express estimation of hydrocarbon-oxidizing potential of microbiota in soil polluted with crude oil].
abstract: The hydrocarbon-oxidizing potential of soil microbiota and hydrocarbon-oxidizing microorganisms introduced into soil was studied based on the quantitative and isotopic characteristics of carbon in products formed in microbial degradation of oil hydrocarbons. Comparison of CO2 production rates in native soil and that polluted with crude oil showed the intensity of microbial mineralization of soil organic matter (SOM) in the presence of oil hydrocarbons to be higher as compared with non-polluted soil, that is, revealed a priming effect ofoil. The amount of carbon of newly synthesized organic products (cell biomass and exometabolites) due to consumed petroleum was shown to significantly exceed that of SOM consumed for production of CO2. The result of microbial processes in oil-polluted soil was found to be a potent release of carbon dioxide to the atmosphere.
authors.forename: A M
authors.initials: AM
authors.lastname: Ziakun
authors.forename: A M
authors.initials: AM
authors.lastname: Boronin
authors.forename: V V
authors.initials: VV
authors.lastname: Kochetkov
authors.forename: B P
authors.initials: BP
authors.lastname: Baskunov
authors.forename: K S
authors.initials: KS
authors.lastname: Laurinavichius
authors.forename: V N
authors.initials: VN
authors.lastname: Zakharchenko
authors.forename: V P
authors.initials: VP
authors.lastname: Peshenko
authors.forename: T O
authors.initials: TO
authors.lastname: Anokhina
authors.forename: T V
authors.initials: TV
authors.lastname: Siunova
mesh_terms: D002245:Carbon Dioxide / Q000378:metabolism; D002247:Carbon Isotopes / Q000032:analysis*; D006838:Hydrocarbons / Q000378:metabolism; D013058:Mass Spectrometry; D054892:Metagenome / Q000502:physiology*; D010084:Oxidation-Reduction; D010578:Petroleum / Q000378:metabolism*; D012988:Soil Microbiology; D012989:Soil Pollutants / Q000378:metabolism
chemical_list: D002247:Carbon Isotopes; D006838:Hydrocarbons; D010578:Petroleum; D012989:Soil Pollutants; D002245:Carbon Dioxide