Evidence item

The excerpt directly reports M. okinawensis growth in simulated Enceladus chemistry up to pH 11 beyond its prior limit. DIRECT_TEXT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 24931

Source: Enceladus-like geochemistry fuels methanogenesis under extreme CO2 limitation · locator {} · excerpt hash sha256:c5c62fe5ebe9a60806f0b1986164282bed1cfd08a4796bb9137dd900faccc025

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 Methanothermococcus okinawensis until pH 11, far exceeding its previously known pH limit.