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- W2971796733 endingPage "e0221694" @default.
- W2971796733 startingPage "e0221694" @default.
- W2971796733 abstract "Despite the importance of microbial activity in mobilizing arsenic in groundwater aquifers, the phylogenetic distribution of contributing microbial metabolisms is understudied. Groundwater samples from Ohio aquifers were analyzed using metagenomic sequencing to identify functional potential that could drive arsenic cycling, and revealed mechanisms for direct (i.e., Ars system) and indirect (i.e., iron reduction) arsenic mobilization in all samples, despite differing geochemical conditions. Analyses of 194 metagenome-assembled genomes (MAGs) revealed widespread functionality related to arsenic mobilization throughout the bacterial tree of life. While arsB and arsC genes (components of an arsenic resistance system) were found in diverse lineages with no apparent phylogenetic bias, putative aioA genes (aerobic arsenite oxidase) were predominantly identified in Methylocystaceae MAGs. Both previously described and undescribed respiratory arsenate reduction potential via arrA was detected in Betaproteobacteria, Deltaproteobacteria, and Nitrospirae MAGs, whereas sulfate reduction potential was primarily limited to members of the Deltaproteobacteria and Nitrospirae. Lastly, iron reduction potential was detected in the Ignavibacteria, Deltaproteobacteria, and Nitrospirae. These results expand the phylogenetic distribution of taxa that may play roles in arsenic mobilization in subsurface systems. Specifically, the Nitrospirae are a much more functionally diverse group than previously assumed and may play key biogeochemical roles in arsenic-contaminated ecosystems." @default.
- W2971796733 created "2019-09-12" @default.
- W2971796733 creator A5018172230 @default.
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- W2971796733 creator A5059837799 @default.
- W2971796733 creator A5069993422 @default.
- W2971796733 creator A5088912262 @default.
- W2971796733 date "2019-09-06" @default.
- W2971796733 modified "2023-10-10" @default.
- W2971796733 title "Capability for arsenic mobilization in groundwater is distributed across broad phylogenetic lineages" @default.
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- W2971796733 doi "https://doi.org/10.1371/journal.pone.0221694" @default.
- W2971796733 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6730927" @default.
- W2971796733 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31490939" @default.
- W2971796733 hasPublicationYear "2019" @default.