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- W4313894219 abstract "Introduction Industrial activities related with the uranium industry are known to generate hazardous waste which must be managed adequately. Amongst the remediation activities available, eco-friendly strategies based on microbial activity have been investigated in depth in the last decades and biomineralization-based methods, mediated by microbial enzymes (e.g., phosphatase), have been proposed as a promising approach. However, the presence of different forms of phosphates in these environments plays a complicated role which must be thoroughly unraveled to optimize results when applying this remediation process. Methods In this study, we have looked at the effect of different phosphate sources on the uranium (U) biomineralization process mediated by Microbacterium sp. Be9, a bacterial strain previously isolated from U mill tailings. We applied a multidisciplinary approach (cell surface characterization, phosphatase activity, inorganic phosphate release, cell viability, microscopy, etc.). Results and Discussion It was clear that the U removal ability and related U interaction mechanisms by the strain depend on the type of phosphate substrate. In the absence of exogenous phosphate substrate, the cells interact with U through U phosphate biomineralization with a 98% removal of U within the first 48 h. However, the U solubilization process was the main U interaction mechanism of the cells in the presence of inorganic phosphate, demonstrating the phosphate solubilizing potential of the strain. These findings show the biotechnological use of this strain in the bioremediation of U as a function of phosphate substrate: U biomineralization (in a phosphate free system) and indirectly through the solubilization of orthophosphate from phosphate (P) containing waste products needed for U precipitation." @default.
- W4313894219 created "2023-01-10" @default.
- W4313894219 creator A5014013713 @default.
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- W4313894219 creator A5052900200 @default.
- W4313894219 date "2023-01-09" @default.
- W4313894219 modified "2023-10-17" @default.
- W4313894219 title "Effect of different phosphate sources on uranium biomineralization by the Microbacterium sp. Be9 strain: A multidisciplinary approach study" @default.
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- W4313894219 doi "https://doi.org/10.3389/fmicb.2022.1092184" @default.
- W4313894219 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36699588" @default.
- W4313894219 hasPublicationYear "2023" @default.
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