dissimilatory manganese reduction

Edge evidence

• Mn(IV) oxide oxidized to manganese(2+) METPO:2007405

  Mn(IV) oxide is reduced to soluble Mn(II).

  • DOI:10.1128/mr.55.2.259-287.1991 Lovley establishes Mn(IV) reduction coupled to organic-matter oxidation as energy-conserving anaerobic respiration.
• Mn(IV) oxide enables dissimilatory manganese reduction RO:0002327

  Mn(IV) acts as terminal electron acceptor enabling DMR.

  • PMID:7826009 Nealson & Saffarini place Mn(IV) as a terminal electron acceptor in anaerobic respiration.
• organic matter is oxidized coupled to dissimilatory manganese reduction

  Oxidation of organic matter is coupled to Mn(IV) reduction.

  • DOI:10.1128/mr.55.2.259-287.1991 Lovley: oxidation of organic matter coupled to reduction of Fe(III) or Mn(IV); fatty acids and aromatics fully oxidized with Mn(IV) as sole acceptor.
• dihydrogen donates electrons to dissimilatory manganese reduction METPO:2007403

  H2 serves as electron donor for dissimilatory manganese reduction.

  • DOI:10.1128/mr.55.2.259-287.1991 Lovley: organisms with Mn(IV) as sole electron acceptor can completely oxidize hydrogen.
• anoxic conditions enables dissimilatory manganese reduction RO:0002327

  Anoxic conditions enable anaerobic Mn(IV) respiration.

  • DOI:10.1128/mr.55.2.259-287.1991 Lovley frames Mn(IV) reduction as anaerobic respiration in aquatic sediments, soils, and groundwater under anaerobic conditions.
• anaerobic methane oxidation is coupled to dissimilatory manganese reduction

  Anaerobic methane oxidation can be coupled to Mn reduction (Fe-Mn-AOM).

  • DOI:10.5194/egusphere-2024-1829 Sivan: AOM coupled with Fe-Mn reduction (Fe-Mn-AOM) is a globally important biogeochemical process with MnO2-coupled AOM reactions.