title: Biodegradation of aniline in an alkaline environment by a novel strain of the halophilic bacterium, Dietzia natronolimnaea JQ-AN.
abstract: Dietzia natronolimnaea JQ-AN was isolated from industrial wastewater containing aniline. Under aerobic conditions, the JQ-AN strain degraded 87% of the aniline in a 300 mg L(-1) aniline solution after 120 h of shake flask incubation in a medium containing sodium acetate. This strain had an unusually high salinity tolerance in minimal medium (0-6% NaCl, w/v). The optimal pH for microbial growth and aniline biodegradation was pH 8.0. Two liters of simulated aniline wastewater was created in a reactor at pH 8.0 and 3% NaCl (w/v), and biodegradation of aniline was tested over 7 days at 30 °C. For the initial concentrations of 100, 300, and 500 mg L(-1), 100%, 80.5% and 72% of the aniline was degraded, respectively. Strain JQ-AN may use an ortho-cleavage pathway for dissimilation of the catechol intermediate.
authors.affiliation: College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, PR China.
authors.forename: Qiong
authors.initials: Q
authors.lastname: Jin
authors.forename: Zhongce
authors.initials: Z
authors.lastname: Hu
authors.forename: Zanfang
authors.initials: Z
authors.lastname: Jin
authors.forename: Lequan
authors.initials: L
authors.lastname: Qiu
authors.forename: Weihong
authors.initials: W
authors.lastname: Zhong
authors.forename: Zhiyan
authors.initials: Z
authors.lastname: Pan
mesh_terms: D000192:Actinomycetales / Q000187:drug effects* / Q000235:genetics / Q000254:growth & development / Q000378:metabolism*; D000468:Alkalies / Q000494:pharmacology*; D000814:Aniline Compounds / Q000378:metabolism*; D001483:Base Sequence; D001673:Biodegradation, Environmental / Q000187:drug effects; D019149:Bioreactors / Q000382:microbiology; D006863:Hydrogen-Ion Concentration / Q000187:drug effects; D053858:Metabolic Networks and Pathways / Q000187:drug effects; D008969:Molecular Sequence Data; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D019346:Sodium Acetate / Q000494:pharmacology; D012965:Sodium Chloride / Q000494:pharmacology
chemical_list: D000468:Alkalies; D000814:Aniline Compounds; D012336:RNA, Ribosomal, 16S; D012965:Sodium Chloride; D019346:Sodium Acetate; C023650:aniline