title: Isolation and characterization of quinoline-degrading bacteria from subsurface sediments.
abstract: Two gram-negative, motile bacteria isolated from deep subsurface sediments mineralized the nitrogen-containing polyaromatic hydrocarbon quinoline under aerobic conditions and transformed quinoline to soluble intermediates under anaerobic conditions. Many aromatic compounds were also able to serve as the sole source of carbon and energy under aerobic conditions. Rapid aerobic mineralization of quinoline at concentrations as low as 0.002 microgram ml-1 indicates that these organisms possess a high-affinity uptake and utilization system, which may reflect the oligotrophic nature of deep subsurface environments. Both bacteria harbored four plasmids of identical size, ranging from 50 to 440 kilobases.
authors.affiliation: Battelle Pacific Northwest Laboratory, Richland, Washington 99352.
authors.forename: F J
authors.initials: FJ
authors.lastname: Brockman
authors.forename: B A
authors.initials: BA
authors.lastname: Denovan
authors.forename: R J
authors.initials: RJ
authors.lastname: Hicks
authors.forename: J K
authors.initials: JK
authors.lastname: Fredrickson
mesh_terms: D000332:Aerobiosis; D000693:Anaerobiosis; D001673:Biodegradation, Environmental; D006090:Gram-Negative Bacteria / Q000235:genetics / Q000378:metabolism*; D010957:Plasmids; D011804:Quinolines / Q000378:metabolism*; D012988:Soil Microbiology
chemical_list: D011804:Quinolines