CO₂-Fixation Strategies in Energy Extremophiles: What Can We Learn From Acetogens?

ABSTRACT: Domestication of CO₂-fixation became a worldwide priority enhanced by the will to convert this greenhouse gas into fuels and valuable chemicals. Because of its high stability, CO₂-activation/fixation represents a true challenge for chemists. Autotrophic microbial communities, however, perform these reactions under standard temperature and pressure. Recent discoveries shine light on autotrophic acetogenic bacteria and hydrogenotrophic methanogens, as these anaerobes use a particularly efficient CO₂-capture system to fulfill their carbon and energy needs. While other autotrophs assimilate CO₂ via carboxylation followed by a reduction, acetogens and methanogens do the opposite. They first generate formate and CO by CO₂-reduction, which ar

SUBMITTER: Lemaire ON 

PROVIDER: S-EPMC7146824 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature