Molecular and geochemical basis of microbially induced carbonate precipitation for treating acid mine drainage: The case of a novel Sporosarcina genomospecies from mine tailings

Microbially induced carbonate precipitation (MICP) immobilizes toxic metals and reduces their bioavailability in aqueous systems. However, its application in the treatment of acid mine drainage (AMD) is poorly understood. In this study, the genomes of Sporosarcina sp. UB5 and UB10 were sequenced. Ur...

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Bibliographic Details
Published in:Journal of hazardous materials 2024-09, Vol.476, p.135005, Article 135005
Main Authors: Cuaxinque-Flores, Gustavo, Talavera-Mendoza, Oscar, Aguirre-Noyola, José Luis, Hernández-Flores, Giovanni, Martínez-Miranda, Verónica, Rosas-Guerrero, Víctor, Martínez-Romero, Esperanza
Format: Article
Language:English
Subjects:
acid mine drainage
adsorption
bacteria
bioavailability
Bioremediation
calcite
carbonate dehydratase
carbonates
Carbonic anhydrase
Metal bio-immobilization
metal tolerance
nucleic acid hybridization
operon
Sporosarcina
Toxic metals and metalloids
toxicity
Urease
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Summary:Microbially induced carbonate precipitation (MICP) immobilizes toxic metals and reduces their bioavailability in aqueous systems. However, its application in the treatment of acid mine drainage (AMD) is poorly understood. In this study, the genomes of Sporosarcina sp. UB5 and UB10 were sequenced. Urease, carbonic anhydrases, and metal resistance genes were identified and enzymatic assays were performed for their validation. The geochemical mechanism of precipitation in AMD was elucidated through geo-mineralogical analysis. Sporosarcina sp. UB5 was shown to be a new genomospecies, with an average nucleotide identity
ISSN:0304-3894
1873-3336
1873-3336
DOI:10.1016/j.jhazmat.2024.135005