title: Anaerobic, nitrate-dependent oxidation of U(IV) oxide minerals by the chemolithoautotrophic bacterium Thiobacillus denitrificans.
abstract: Under anaerobic conditions and at circumneutral pH, cells of the widely distributed, obligate chemolithoautotrophic bacterium Thiobacillus denitrificans oxidatively dissolved synthetic and biogenic U(IV) oxides (uraninite) in nitrate-dependent fashion: U(IV) oxidation required the presence of nitrate and was strongly correlated with nitrate consumption. This is the first report of anaerobic U(IV) oxidation by an autotrophic bacterium.
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, California, 94551-0081, USA. beller2@llnl.gov
authors.forename: Harry R
authors.initials: HR
authors.lastname: Beller
mesh_terms: D000693:Anaerobiosis; D003470:Culture Media; D009566:Nitrates / Q000378:metabolism*; D010084:Oxidation-Reduction; D010087:Oxides / Q000378:metabolism*; D013855:Thiobacillus / Q000254:growth & development* / Q000378:metabolism*; D014501:Uranium / Q000378:metabolism*
chemical_list: D003470:Culture Media; D009566:Nitrates; D010087:Oxides; D014501:Uranium