Asgard archaea capable of anaerobic hydrocarbon cycling
Journal Article
·
· Nature Communications
- Univ. of Texas, Austin, TX (United States). Dept. of Marine Science, Port Aransas, TX (United States); DOE/OSTI
- Univ. of Texas, Austin, TX (United States). Dept. of Marine Science, Port Aransas, TX (United States); Univ. of Utrecht (Netherlands). Royal Netherlands Inst. of Sea Research (NIOZ)
- Uppsala Univ. (Sweden). Dept. of Cell and Molecular Biology, Lab. of Molecular Biophysics; Centre National de la Recherche Scientifique (CNRS), Orsay (France). Unite d'Ecologie. Systematique et Evolution
- Univ. of Utrecht (Netherlands). Royal Netherlands Inst. of Sea Research (NIOZ); Uppsala Univ. (Sweden). Dept. of Cell and Molecular Biology, Lab. of Molecular Biophysics
- Uppsala Univ. (Sweden). Dept. of Cell and Molecular Biology, Lab. of Molecular Biophysics
- Univ. of Minnesota, Duluth, MN (United States)
- Univ. of North Carolina, Chapel Hill, NC (United States). Dept. of Marine Science
- Uppsala Univ. (Sweden). Dept. of Cell and Molecular Biology, Lab. of Molecular Biophysics; Wageningen University, Wageningen (Netherlands). Dept. of Agrotechnology and Food Sciences. Lab. of Microbiology
- Univ. of Texas, Austin, TX (United States). Dept. of Marine Science, Port Aransas, TX (United States)
Large reservoirs of natural gas in the oceanic subsurface sustain complex communities of anaerobic microbes, including archaeal lineages with potential to mediate oxidation of hydrocarbons such as methane and butane. Here we describe a previously unknown archaeal phylum, Helarchaeota, belonging to the Asgard superphylum and with the potential for hydrocarbon oxidation. We reconstruct Helarchaeota genomes from metagenomic data derived from hydrothermal deep-sea sediments in the hydrocarbon-rich Guaymas Basin. The genomes encode methyl-CoM reductase-like enzymes that are similar to those found in butane-oxidizing archaea, as well as several enzymes potentially involved in alkyl-CoA oxidation and the Wood-Ljungdahl pathway. We suggest that members of the Helarchaeota have the potential to activate and subsequently anaerobically oxidize hydrothermally generated short-chain hydrocarbons.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1624145
- Journal Information:
- Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 10; ISSN 2041-1723
- Publisher:
- Nature Publishing GroupCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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