chemolithoautotrophic

Edge evidence

• chemolithoautotrophic uses electron donor inorganic electron donor METPO:2000009

  Chemolithoautotrophs obtain energy from inorganic electron donors.

  • DOI:10.1016/B978-0-12-378630-2.00219-X growth-supporting reductant and energy source Supports inorganic reductants as energy sources.
• inorganic electron donor feeds electrons into electron transport chain METPO:2007402

  Donor oxidation supplies electrons to energy-conserving respiratory chains.

  • DOI:10.1016/j.bbabio.2008.09.008 membrane-bound electron transport chain Supports membrane-bound respiratory chains as redox energy-conserving systems.
• electron transport chain generates proton motive force biolink:produces

  Respiratory chains generate an electrochemical ion gradient.

  • DOI:10.1016/j.bbabio.2008.09.008 generation of an electrochemical ion gradient Supports proton motive force generation.
• proton motive force drives synthesis of ATP biolink:produces

  The ion gradient drives ATP synthesis.

  • DOI:10.1016/j.bbabio.2008.09.008 drives ATP synthesis Supports ATP synthesis from respiratory ion gradients.
• inorganic electron donor supports generation of reducing power

  Electrons from inorganic donors provide reduced cofactors for biosynthesis.

  • DOI:10.1016/j.biortech.2021.125768 serve as reductive power Supports reduced cofactors generated from chemolithoautotrophic electron donors.
• carbon dioxide fixed by CO2 fixation pathway METPO:2007404

  Chemolithoautotrophs use CO2 fixation pathways for carbon assimilation.

  • DOI:10.1146/annurev.micro.52.1.191 Carbon Dioxide Fixation in Chemoautotrophs Supports CO2 fixation in chemoautotrophic bacteria.
• ATP enables CO2 fixation pathway RO:0002327

  ATP generated from donor oxidation supports autotrophic CO2 fixation.

  • DOI:10.1128/AEM.02473-10 energy required for autotrophic CO2 fixation Supports energy demand of autotrophic CO2 fixation.
• reducing power enables CO2 fixation pathway RO:0002327

  Reducing power supports reductive CO2 assimilation.

  • DOI:10.1016/j.biortech.2021.125768 reduction of CO2 Supports reductant use in CO2 fixation.
• CO2 fixation pathway produces biomass METPO:2000202

  CO2 fixation generates cellular biomass.

  • DOI:10.1146/annurev.micro.52.1.191 physiology ... of chemoautotrophic bacteria Review scope supports chemoautotrophic growth from fixed carbon.
• RuBisCO catalyzes CO2 fixation pathway biolink:catalyzes

  RuBisCO catalyzes the carboxylation step of the Calvin-Benson-Bassham CO2 fixation cycle.

  • DOI:10.1128/aem.01557-23 Ribulose 1,5-bisphosphate carboxylase/oxygenase (RuBisCO) drives CBB-cycle CO2 fixation.
• carbonic anhydrase facilitates supply of dissolved inorganic carbon

  Carbonic anhydrase interconverts CO2 and bicarbonate to facilitate dissolved inorganic carbon fixation.

  • DOI:10.1128/aem.01557-23 carbonic anhydrase enzymes (CA) to facilitate DIC fixation.
• dissolved inorganic carbon transporter increases availability of dissolved inorganic carbon

  DIC transporters bridge environmental inorganic carbon supply to autotrophic pathway demand.

  • DOI:10.1128/aem.01557-23 DIC transporters bridge supply from the environment to demand by the autotrophic pathway.
• dissolved inorganic carbon supplies substrate to CO2 fixation pathway

  Dissolved inorganic carbon supplies the CO2/bicarbonate substrate for autotrophic fixation.

  • DOI:10.1128/aem.01557-23 DIC supply bridged to demand by the autotrophic pathway.
• proton motive force drives reverse electron transport for reducing power

  PMF can reverse the electron transport chain to regenerate NADH/NADPH reducing power for fixation.

  • DOI:10.1038/s41467-023-43524-4 The proton motive force drives ATP synthesis and can reverse the electron transport chain to regenerate NADH/NADPH.