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- W3123969045 abstract "Acid mine drainage-affected environments are interesting microbial niches for the isolation of metal-resistant microorganisms. In this sense, the aim of the present work is to isolate and characterize metal-resistant microorganisms from sediments of an abandoned gold mine located in San Luis (Argentina). For these purposes, the metal removal capacity and the microelemental composition of the biomass exposed to metals were evaluated. Likewise, proteomic techniques were applied to understand the removal and resistance mechanisms. Fusarium tricinctum M6 was isolated and identified as tolerant to Cu(II), Fe(II) and Cr(VI). When faced with 40 µg mL−1 Cu(II), the growth was affected by 60% and the removal capacity was 30–35%. Copper was found uniformly distributed in the biomass (5.23% w/w) and variations in the proportion of other biomass constituent elements were detected. When exposed to Cu(II), F. tricinctum M6 showed differential expression of intra and extracellular proteins involved in different metabolic processes. A large number of proteins with metal ion binding sites were detected both at intra and extracellular levels. The results obtained in the present work indicated bioadsorption of the metal on the cell surface and an important readjustment of the protein expression to counteract the stress produced by Cu(II)." @default.
- W3123969045 created "2021-02-01" @default.
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- W3123969045 date "2021-06-01" @default.
- W3123969045 modified "2023-10-14" @default.
- W3123969045 title "Characterization of copper stress response in Fusarium tricinctum M6: A metal-resistant microorganism isolated from an acid mine drainage-affected environment" @default.
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- W3123969045 doi "https://doi.org/10.1016/j.jhazmat.2021.125216" @default.
- W3123969045 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/8108702" @default.
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