Reduction of uranium(VI) phosphate during growth of the thermophilic bacterium thermoterrabacterium ferrireducens

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Khijniak, T. V. and Slobodkin, A. I. and Coker, V. and Renshaw, J. C. and Livens, F. R. and Bonch-Osmolovskaya, E. A. and Birkeland, N. K. and Medvedeva-Lyalikova, N. N. and Lloyd, J. R. (2005) Reduction of uranium(VI) phosphate during growth of the thermophilic bacterium thermoterrabacterium ferrireducens. Applied and Environmental Microbiology, 71 (10). pp. 6423-6426. ISSN 0099-2240 (https://doi.org/10.1128/AEM.71.10.6423-6426.2005)

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Abstract

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) · 3H 2O], 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.

ORCID iDs

Khijniak, T. V., Slobodkin, A. I., Coker, V., Renshaw, J. C. ORCID logoORCID: https://orcid.org/0000-0003-2073-3239, Livens, F. R., Bonch-Osmolovskaya, E. A., Birkeland, N. K., Medvedeva-Lyalikova, N. N. and Lloyd, J. R.;
CORE (COnnecting REpositories)