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Environmental Evidence For Net Methane Production And Oxidation In Putative Anaerobic Methanotrophic (Anme) Archaeaemi_, Karen Lloyd, Marc J. Alperin, Andreas Teske
Environmental Evidence For Net Methane Production And Oxidation In Putative Anaerobic Methanotrophic (Anme) Archaeaemi_, Karen Lloyd, Marc J. Alperin, Andreas Teske
Karen Lloyd
Uncultured ANaerobic MEthanotrophic (ANME) archaea are often assumed to be obligate methanotrophs that are incapable of net methanogenesis, and are therefore used as proxies for anaerobic methane oxidation in many environments in spite of uncertainty regarding their metabolic capabilities. Anaerobic methane oxidation regulates methane emissions in marine sediments and appears to occur through a reversal of a methane-producing metabolism. We tested the assumption that ANME are obligate methanotrophs by detecting and quantifying gene transcription of ANME-1 across zones of methane oxidation versus methane production in sediments from the White Oak River estuary, North Carolina. ANME-1 consistently transcribe 16S rRNA and …