title: Degradation of petroleum hydrocarbons (C6-C40) and crude oil by a novel Dietzia strain.
abstract: A novel bacterial strain, DQ12-45-1b, was isolated from the production water of a deep subterranean oil-reservoir. Morphological, physiological and phylogenetic analyses indicated that the strain belonged to the genus Dietzia with both alkB (coding for alkane monooxygenase) and CYP153 (coding for P450 alkane hydroxylase of the cytochrome CYP153 family) genes and their induction detected. It was capable of utilizing a wide range of n-alkanes (C6-C40), aromatic compounds and crude oil as the sole carbon sources for growth. In addition, it preferentially degraded short-chain hydrocarbons (≤C25) in the early cultivation phase and accumulated hydrocarbons with chain-lengths from C23 to C27 during later cultivation stage with crude oil as the sole carbon source. This is the first study to report the different behaviors of a bacterial species toward crude oil degradation as well as a species of Dietzia degrading a wide range of hydrocarbons.
authors.affiliation: Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing 100871, PR China.
authors.forename: Xing-Biao
authors.initials: XB
authors.lastname: Wang
authors.forename: Chang-Qiao
authors.initials: CQ
authors.lastname: Chi
authors.forename: Yong
authors.initials: Y
authors.lastname: Nie
authors.forename: Yue-Qin
authors.initials: YQ
authors.lastname: Tang
authors.forename: Yan
authors.initials: Y
authors.lastname: Tan
authors.forename: Gang
authors.initials: G
authors.lastname: Wu
authors.forename: Xiao-Lei
authors.initials: XL
authors.lastname: Wu
mesh_terms: D006090:Gram-Negative Bacteria / Q000145:classification / Q000378:metabolism*; D006838:Hydrocarbons / Q000378:metabolism*; D010578:Petroleum / Q000378:metabolism*; D010802:Phylogeny
chemical_list: D006838:Hydrocarbons; D010578:Petroleum