Redox potential of P/Phosphine

Value -525 mV
Organism Generic
Reference Schink B, Friedrich M. Phosphite oxidation by sulphate reduction. Nature. 2000 Jul 6 406(6791):37 left column 2nd paragraphPubMed ID10894531
Method "Researchers enriched phosphite-oxidizing, anaerobic bacteria in a sulphide-reduced mineral medium with sulphate as the electron acceptor, by using marine or freshwater sediments as inoculum. Growing cultures developed within 2–4 months and were transferred repeatedly into subcultures."
Comments "The reduction of phosphate to phosphine (PH3) has to proceed through steps of extremely low redox potential ((HPO4) 2-/(HPO3)2-,-690 mV (HPO 3)2-/ (H2PO2)- , -913 mV (H2PO2)-/P, -922 mV P/PH3, -525 mV, at pH 7.0), so it is unlikely to drive the coupling of a respiratory process to biomass oxidation."
Entered by Uri M
ID 104421