Metabolic Performance and Fate of Electrons during Nitrate-Reducing Fe(II) Oxidation by the Autotrophic Enrichment Culture KS Grown at Different Initial Fe/N Ratios
Jianrong Huang, Adrian Mellage, Julian Pavon Garcia, David Glöckler, Susanne Mahler, Martin Elsner, Natalia Jakus, Muammar Mansor, Hongchen Jiang, Andreas Kappler
Abstract
Autotrophic NRFeOx microorganisms that oxidize Fe(II), reduce nitrate, and produce biomass play a key role in carbon, iron, and nitrogen cycles in pH-neutral, anoxic environments. Electrons from Fe(II) oxidation are used for the reduction of both carbon dioxide and nitrate.
Topics & Concepts
AutotrophNitrateAnoxic watersEnvironmental chemistryNitrogenCarbon fibersBiomass (ecology)Carbon dioxideChemistryMicroorganismHeterotrophRedoxInorganic chemistryBacteriaEcologyBiologyMaterials scienceOrganic chemistryGeneticsComposite materialComposite numberMicrobial Fuel Cells and BioremediationElectrocatalysts for Energy ConversionWastewater Treatment and Nitrogen Removal