title: [Destruction of aromatic hydrocarbons by the Rhodococcus wratislaviensis KT112-7 strain isolated from waste products of a salt-mining factory].
abstract: The destruction of aromatic hydrocarbons by the Rhodococcus wratislaviensis KT112-7 strain isolated from technogenic mineral waste products of the BKRU1 Uralkalii factory has been investigated (city of Berezniki, Perm krai). The R. wratislaviensis KT112-7 was shown to utilize increased concentrations of ophthalic (o-PA) (8 g/L) and benzoic (BA) (3.4 g/L) acids. The strain grows with o-FA, BA, and biphenyl at a NaCl content of up to 50, 90, and 75 g/L in the culture medium, respectively. Based on an analysis of the metabolic profile and nucleotide sequences of the bphA1, benA, and phtB genes, the KT112-7 strain was established to decompose o-PA via the formation of 3,4-dihydroxyphthalic and 3,4-dihydroxybenzoic acids. The decomposition of biphenyl is carried out via the formation of BA and then at low concentrations of NaCl (up to 50 g/L) via the formation of 4-hydroxybenzoic acid followed by its oxidation; at high concentrations of NaCl (over 60 g/L), via the direct oxidation of benzoic acid with the production of catechol. These data indicate that the Rhodococcus wratislaviensis KT112-7 destructor strain is a promising strain for the development of new biotechnologies directed at the utilization (transformation) of aromatic compounds, including under the conditions of increased mineralization.
authors.forename: D O
authors.initials: DO
authors.lastname: Egorova
authors.forename: E S
authors.initials: ES
authors.lastname: Korsakova
authors.forename: V A
authors.initials: VA
authors.lastname: Demakov
authors.forename: E G
authors.initials: EG
authors.lastname: Plotnikova
mesh_terms: D019817:Benzoic Acid / Q000737:chemistry / Q000378:metabolism; D001673:Biodegradation, Environmental; D006801:Humans; D006841:Hydrocarbons, Aromatic / Q000737:chemistry*; D017744:Medical Waste Disposal; D008906:Mining; D010795:Phthalic Acids / Q000737:chemistry / Q000378:metabolism; D012240:Rhodococcus / Q000737:chemistry / Q000378:metabolism; D012965:Sodium Chloride / Q000737:chemistry; D014866:Waste Products
chemical_list: D006841:Hydrocarbons, Aromatic; D017744:Medical Waste Disposal; D010795:Phthalic Acids; D014866:Waste Products; D012965:Sodium Chloride; D019817:Benzoic Acid