Reduction of uranium(VI) phosphate during growth of the thermophilic bacterium Thermoterrabacterium ferrireducens.
The thermophilic, gram-positive bacterium Thermoterrabacterium ferrireducens coupled organotrophic growth to the reduction of sparingly soluble U(VI) phosphate. X-ray powder diffraction and X-ray absorption spectroscopy analysis identified the electron acceptor in a defined medium as U(VI) phosphate [uramphite; (NH4)(UO2)(PO4) . 3H2O], while the U(IV)-containing precipitate formed during bacterial growth was identified as ningyoite [CaU(PO4)2 . H2O]. This is the first report of microbial reduction of a largely insoluble U(VI) compound.
Khijniak
T V
TV
The Williamson Research Centre for Molecular Environmental Science and The School of Earth, Atmospheric and Environmental Sciences, The University of Manchester, Manchester M13 9PL, United Kingdom.
Slobodkin
A I
AI
Coker
V
V
Renshaw
J C
JC
Livens
F R
FR
Bonch-Osmolovskaya
E A
EA
Birkeland
N-K
NK
Medvedeva-Lyalikova
N N
NN
Lloyd
J R
JR
D008855:Microscopy, Electron, Scanning; D010084:Oxidation-Reduction; D010459:Peptococcaceae / Q000254:growth & development* / Q000378:metabolism / Q000648:ultrastructure; D010710:Phosphates / Q000378:metabolism*; D013052:Spectrometry, X-Ray Emission; D014501:Uranium / Q000378:metabolism*; D014961:X-Ray Diffraction
D010710:Phosphates; D014501:Uranium