ArticleThe ISME journal2014
Metabolic interdependencies between phylogenetically novel fermenters and respiratory organisms in an unconfined aquifer.
Article in The ISME journal, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 86 papers.
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Who cites it
86 citing papers in PubMed.
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- Current Understanding of Taxonomy and Ecology of the Phylum Minisyncoccota.Microbes and environments · 2026Review
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- The dynamic history of prokaryotic phyla: discovery, diversity and division.International journal of systematic and evolutionary microbiology · 2024Review
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- Ultra-small bacteria and archaea exhibit genetic flexibility towards groundwater oxygen content, and adaptations for attached or planktonic lifestyles.ISME communications · 2023Article
- Influence of soil nutrients on the presence and distribution of CPR bacteria in a long-term crop rotation experiment.Frontiers in microbiology · 2023Article
- Effects of dietary N-carbamylglutamate on rumen fermentation parameters, and bacterial community diversity of Holstein dairy cows in Tibet.Frontiers in microbiology · 2023Article
- Metagenomic and metatranscriptomic insights into sulfate-reducing bacteria in a revegetated acidic mine wasteland.NPJ biofilms and microbiomes · 2022Article
- Active anaerobic methane oxidation and sulfur disproportionation in the deep terrestrial subsurface.The ISME journal · 2022Article
- Microbial diversity in extreme environments.Nature reviews. Microbiology · 2022Review
- Metabolic Potential of the Superphylum Patescibacteria Reconstructed from Activated Sludge Samples from a Municipal Wastewater Treatment Plant.Microbes and environments · 2022Article
- Influence of host genotype in establishing root associated microbiome ofFrontiers in microbiology · 2022Article
26 more citing papers are in PubMed but not listed here.
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Authors and funding
14 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Fermentation-based metabolism is an important ecosystem function often associated with environments rich in organic carbon, such as wetlands, sewage sludge and the mammalian gut. The diversity of microorganisms and pathways involved in carbon and hydrogen cycling in sediments and aquifers and the impacts of these processes on other biogeochemical cycles remain poorly understood. Here we used metagenomics and proteomics to characterize microbial communities sampled from an aquifer adjacent to the Colorado River at Rifle, CO, USA, and document interlinked microbial roles in geochemical cycling. The organic carbon content in the aquifer was elevated via acetate amendment of the groundwater occurring over 2 successive years. Samples were collected at three time points, with the objective of extensive genome recovery to enable metabolic reconstruction of the community. Fermentative community members include organisms from a new phylum, Melainabacteria, most closely related to Cyanobacteria, phylogenetically novel members of the Chloroflexi and Bacteroidales, as well as candidate phyla genomes (OD1, BD1-5, SR1, WWE3, ACD58, TM6, PER and OP11). These organisms have the capacity to produce hydrogen, acetate, formate, ethanol, butyrate and lactate, activities supported by proteomic data. The diversity and expression of hydrogenases suggests the importance of hydrogen metabolism in the subsurface. Our proteogenomic data further indicate the consumption of fermentation intermediates by Proteobacteria can be coupled to nitrate, sulfate and iron reduction. Thus, fermentation carried out by previously unknown members of sediment microbial communities may be an important driver of nitrogen, hydrogen, sulfur, carbon and iron cycling.
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