title: Resistance of solid-phase U(VI) to microbial reduction during in situ bioremediation of uranium-contaminated groundwater.
abstract: Speciation of solid-phase uranium in uranium-contaminated subsurface sediments undergoing uranium bioremediation demonstrated that although microbial reduction of soluble U(VI) readily immobilized uranium as U(IV), a substantial portion of the U(VI) in the aquifer was strongly associated with the sediments and was not microbially reducible. These results have important implications for in situ uranium bioremediation strategies.
authors.affiliation: Department of Microbiology, University of Massachusetts, Morrill Science Center IVN, Amherst, MA 01003, USA. iortiz@microbio.umass.edu
authors.forename: Irene
authors.initials: I
authors.lastname: Ortiz-Bernad
authors.forename: Robert T
authors.initials: RT
authors.lastname: Anderson
authors.forename: Helen A
authors.initials: HA
authors.lastname: Vrionis
authors.forename: Derek R
authors.initials: DR
authors.lastname: Lovley
mesh_terms: D000085:Acetates / Q000378:metabolism; D001673:Biodegradation, Environmental; D020564:Deltaproteobacteria / Q000378:metabolism; D005618:Fresh Water / Q000737:chemistry / Q000382:microbiology*; D019015:Geologic Sediments / Q000737:chemistry / Q000382:microbiology*; D010084:Oxidation-Reduction; D012995:Solubility; D014501:Uranium / Q000737:chemistry* / Q000378:metabolism*; D014875:Water Pollutants, Radioactive / Q000378:metabolism*
chemical_list: D000085:Acetates; D014875:Water Pollutants, Radioactive; D014501:Uranium