Metagenomic studies revealed genes encoding the methyl coenzyme M reductase complex in non-Euryarchaeota clades, suggesting broader methanogenic diversity. The isolation of Methanosuratincola petrocarbonis LWZ-6 confirmed a thermophilic hydrogen-dependent methylotrophic methanogen, expanding the understanding of methanogen diversity and methane emissions.
Strain LWZ-6 does not ferment sugars, peptides, or amino acids but is strictly linked to methanogenesis, utilizing methanol and monomethylamine as electron acceptors and hydrogen as an electron donor. Comparative (meta)genome analysis underlines the prevalence of hydrogen-dependent methylotrophic methanogenesis in the Methanosuratincolia class, highlighting its importance in global methane cycles.
#methanogenic-archaea #methylotrophic-methanogenesis #global-methane-emissions #carbon-cycle #metagenomic-studies
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