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Title: Methylotrophic methanogenesis discovered in the archaeal phylum Verstraetearchaeota

Abstract

Methanogenesis is the primary biogenic source of methane in the atmosphere and a key contributor to climate change. The long-standing dogma that methanogenesis originated within the Euryarchaeota was recently challenged by the discovery of putative methane-metabolizing genes in members of the Bathyarchaeota, suggesting that methanogenesis may be more phylogenetically widespread than currently appreciated. Here, we present the discovery of divergent methyl-coenzyme M reductase genes in population genomes recovered from anoxic environments with high methane flux that belong to a new archaeal phylum, the Verstraetearchaeota. These archaea encode the genes required for methylotrophic methanogenesis, and may conserve energy using a mechanism similar to that proposed for the obligate H 2-dependent methylotrophic Methanomassiliicoccales and recently described Candidatus ‘Methanofastidiosa’. Our findings indicate that we are only beginning to understand methanogen diversity and support an ancient origin for methane metabolism in the Archaea, which is changing our understanding of the global carbon cycle.

Authors:
 [1];  [1];  [1];  [2];  [1];  [1];  [1]
  1. Univ. of Queensland, St. Lucia (Australia). Australian Centre for Ecogenomics, School of Chemistry and Molecular Biosciences
  2. Univ. of Queensland, St. Lucia (Australia). Australian Centre for Ecogenomics, School of Chemistry and Molecular Biosciences and Advanced Water Management Centre
Publication Date:
Research Org.:
California Inst. of Technology (CalTech), Pasadena, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23). Biological Systems Science Division
OSTI Identifier:
1424948
Grant/Contract Number:  
SC0010574
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Nature Microbiology
Additional Journal Information:
Journal Volume: 1; Journal ID: ISSN 2058-5276
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; 54 ENVIRONMENTAL SCIENCES; Archaeal evolution; Archaeal physiology; Environmental microbiology; Metagenomics; Molecular biology

Citation Formats

Vanwonterghem, Inka, Evans, Paul N., Parks, Donovan H., Jensen, Paul D., Woodcroft, Ben J., Hugenholtz, Philip, and Tyson, Gene W. Methylotrophic methanogenesis discovered in the archaeal phylum Verstraetearchaeota. United States: N. p., 2016. Web. doi:10.1038/NMICROBIOL.2016.170.
Vanwonterghem, Inka, Evans, Paul N., Parks, Donovan H., Jensen, Paul D., Woodcroft, Ben J., Hugenholtz, Philip, & Tyson, Gene W. Methylotrophic methanogenesis discovered in the archaeal phylum Verstraetearchaeota. United States. doi:10.1038/NMICROBIOL.2016.170.
Vanwonterghem, Inka, Evans, Paul N., Parks, Donovan H., Jensen, Paul D., Woodcroft, Ben J., Hugenholtz, Philip, and Tyson, Gene W. Mon . "Methylotrophic methanogenesis discovered in the archaeal phylum Verstraetearchaeota". United States. doi:10.1038/NMICROBIOL.2016.170. https://www.osti.gov/servlets/purl/1424948.
@article{osti_1424948,
title = {Methylotrophic methanogenesis discovered in the archaeal phylum Verstraetearchaeota},
author = {Vanwonterghem, Inka and Evans, Paul N. and Parks, Donovan H. and Jensen, Paul D. and Woodcroft, Ben J. and Hugenholtz, Philip and Tyson, Gene W.},
abstractNote = {Methanogenesis is the primary biogenic source of methane in the atmosphere and a key contributor to climate change. The long-standing dogma that methanogenesis originated within the Euryarchaeota was recently challenged by the discovery of putative methane-metabolizing genes in members of the Bathyarchaeota, suggesting that methanogenesis may be more phylogenetically widespread than currently appreciated. Here, we present the discovery of divergent methyl-coenzyme M reductase genes in population genomes recovered from anoxic environments with high methane flux that belong to a new archaeal phylum, the Verstraetearchaeota. These archaea encode the genes required for methylotrophic methanogenesis, and may conserve energy using a mechanism similar to that proposed for the obligate H2-dependent methylotrophic Methanomassiliicoccales and recently described Candidatus ‘Methanofastidiosa’. Our findings indicate that we are only beginning to understand methanogen diversity and support an ancient origin for methane metabolism in the Archaea, which is changing our understanding of the global carbon cycle.},
doi = {10.1038/NMICROBIOL.2016.170},
journal = {Nature Microbiology},
number = ,
volume = 1,
place = {United States},
year = {Mon Oct 03 00:00:00 EDT 2016},
month = {Mon Oct 03 00:00:00 EDT 2016}
}

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Cited by: 48 works
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Works referenced in this record:

Greengenes, a Chimera-Checked 16S rRNA Gene Database and Workbench Compatible with ARB
journal, July 2006

  • DeSantis, T. Z.; Hugenholtz, P.; Larsen, N.
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KEGG: Kyoto Encyclopedia of Genes and Genomes
journal, January 2000

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