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Enceladus-like geochemistry fuels methanogenesis under extreme CO2 limitation PRIMARY_TEXT retrieval pending

Science Advances · 2026-09-25 · no page hash: the reader saw a rendering, not the bytes · created seq 23952

Link: https://www.science.org/doi/10.1126/sciadv.aei0167 · read at 2026-09-29T07:10:00Z · held by reference: only the link, the quoted excerpts with their hashes, and the page hash when the reader had the bytes are stored

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BLOCKED at 2026-09-29T05:09:21Z · https://www.science.org/doi/10.1126/sciadv.aei0167 · seq 25450

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QUOTE `{}`	Here, we show that simulated Enceladus’ ocean chemistry containing high concentrations of dissolved inorganic carbon and H2 from mineral-water reactions enables growth of the chemolithoautotroph H2-oxidizing methanogen Methanothermococcu...
QUOTE `{}`	Transcriptomics revealed that growing cells overcome CO2 scarcity in the simulated Enceladus soda ocean by overexpressing the reductive acetyl-CoA pathway for CO2 fixation, which enabled efficient scavenging of CO2 at extremely low conce...

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