title: Acetate threshold concentrations suggest varying energy requirements during anaerobic respiration by Anaeromyxobacter dehalogenans.
abstract: Acetate threshold concentrations were determined under chlororespiring and Fe(III)-reducing conditions for Anaeromyxobacter dehalogenans strain 2CP-C. The acetate threshold concentrations measured were 69 +/- 4, 19 +/- 8, and <1 nM for chlororespiration, amorphous Fe(III) reduction, and Fe(III) citrate reduction, respectively. Residual DeltaG values of -75.4 kJ/mol of electrons for chlororespiration and -41.5 kJ/mol of electrons for amorphous Fe(III) reduction were calculated at the acetate threshold concentration. By comparing threshold concentrations for different metabolisms in a single organism, this study provides insight into the metabolic use of energy under different growth conditions.
authors.affiliation: Department of Civil and Environmental Engineering, University of Illinois at Urbana/Champaign, Urbana, Illinois 61801-2352, USA.
authors.forename: Qiang
authors.initials: Q
authors.lastname: He
authors.forename: Robert A
authors.initials: RA
authors.lastname: Sanford
mesh_terms: D000085:Acetates / Q000378:metabolism*; D000693:Anaerobiosis; D002733:Chlorophenols / Q000378:metabolism*; D003470:Culture Media; D004734:Energy Metabolism; D005290:Ferric Compounds / Q000378:metabolism*; D009231:Myxococcales / Q000254:growth & development* / Q000378:metabolism / Q000502:physiology*; D010084:Oxidation-Reduction
chemical_list: D000085:Acetates; D002733:Chlorophenols; D003470:Culture Media; D005290:Ferric Compounds