Regulation of the methanogenesis pathways by hydrogen at transcriptomic level in time.

ABSTRACT: The biomethane formation from 4 H₂ + CO₂ by pure cultures of two methanogens, Methanocaldococcus fervens and Methanobacterium thermophilum, has been studied. The goal of the study was to understand the regulation of the enzymatic steps associated with biomethane biosynthesis by H₂, using metagenomic, pan-genomic, and transcriptomic approaches. Methanogenesis in the autotrophic methanogen M. fervens could be easily "switched off" and "switched on" by H₂/CO₂ within about an hour. In contrast, the heterotrophic methanogen M. thermophilum was practically insensitive to the addition of the H₂/CO₂ trigger although this methanogen also converted H₂/CO₂ to CH₄. From practical points of vie

SUBMITTER: Szuhaj M 

PROVIDER: S-EPMC10560149 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature