Hyperthermophilic methanogenic archaea act as high-pressure CH₄ cell factories.

ABSTRACT: Bioprocesses converting carbon dioxide with molecular hydrogen to methane (CH₄) are currently being developed to enable a transition to a renewable energy production system. In this study, we present a comprehensive physiological and biotechnological examination of 80 methanogenic archaea (methanogens) quantifying growth and CH₄ production kinetics at hyperbaric pressures up to 50 bar with regard to media, macro-, and micro-nutrient supply, specific genomic features, and cell envelope architecture. Our analysis aimed to systematically prioritize high-pressure and high-performance methanogens. We found that the hyperthermophilic methanococci Methanotorris igneus and Methanocaldococcoccus jannaschii are high-pressure CH₄ cell factories. Furthermore, our analy

SUBMITTER: Mauerhofer LM 

PROVIDER: S-EPMC7935968 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature