Evidence item

The quoted passage directly reports transcriptomic association of extreme CO2-scarcity growth with overexpression of the reductive acetyl-CoA CO2-fixation pathway in simulated Enceladus chemistry. DIRECT_TEXT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 24636

Source: Enceladus-like geochemistry fuels methanogenesis under extreme CO2 limitation · locator {} · excerpt hash sha256:90f3f8d0db11adcf168032cedf2868bfc12373ffd5cca04e66905e34c247f515

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 concentrations. The carbon and energy metabolism of M. okinawensis was entirely fueled by the abiotic H2 derived from the simulated Enceladus mineral-water reactions.