Interactions of Paenibacillus sp. and Sulfolobus acidocaldarius strains with U(VI)
The interactions of U(VI) with one representative each of the domains Bacteria and Archaea are compared. Our results demonstrate that U(VI) is bound by the cells of both microbial strains predominantly through phosphate groups. However, the comparison of the binding capacities and the structural parameters of the formed U(VI) complexes reveals significant differences. In the case of the bacterial strain Paenibacillus sp. JG-TB8, U(VI) is precipitated as a uranyl phosphate mineral phase. In contrast, organic phosphate groups are responsible for the U(VI) complexation by the archaeal strain Sulfolobus acidocaldariusDSM 639.
KeywordsAcidithiobacillus Ferrooxidans European Synchrotron Radiation Facility Session Versus Uranyl Phosphate Multiple Scattering Path
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