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Title: Wetland Sediments Host Diverse Microbial Taxa Capable of Cycling Alcohols

Journal Article · · Applied and Environmental Microbiology
DOI:https://doi.org/10.1128/AEM.00189-19· OSTI ID:1567060
ORCiD logo [1];  [1];  [2];  [2];  [3];  [4]
  1. Radboud Univ. Nijmegen, Nijmegen (The Netherlands)
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  3. Colorado State Univ., Fort Collins, CO (United States)
  4. Univ. of Georgia, Athens, GA (United States)

Alcohols are commonly derived from the degradation of organic matter and yet are rarely measured in environmental samples. Wetlands in the Prairie Pothole Region (PPR) support extremely high methane emissions and the highest sulfate reduction rates reported to date, likely contributing to a significant proportion of organic matter mineralization in this system. Here, while ethanol and isopropanol concentrations up to 4 to 5 mM in PPR wetland pore fluids have been implicated in sustaining these high rates of microbial activity, the mechanisms that support alcohol cycling in this ecosystem are poorly understood. We leveraged metagenomic and transcriptomic tools to identify genes, pathways, and microorganisms potentially accounting for alcohol cycling in PPR wetlands. Phylogenetic analyses revealed diverse alcohol dehydrogenases and putative substrates. Alcohol dehydrogenase and aldehyde dehydrogenase genes were included in 62 metagenome-assembled genomes (MAGs) affiliated with 16 phyla.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
1567060
Report Number(s):
PNNL-SA-147002
Journal Information:
Applied and Environmental Microbiology, Vol. 85, Issue 12; ISSN 0099-2240
Publisher:
American Society for MicrobiologyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

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Figures / Tables (6)