Electrochemically driven respiration in mitochondria and Paracoccus denitrificans

Abstract
By exploiting the rapid, direct electrochemistry of horse heart cytochomre c at a modified gold electrode it has been possible to couple the electrode reaction with respiration in rat liver mitochondria and in photoplasts of Paracoccus denitrificans , but not in protoplasts from E. coli . Oxidation of endogenous and exogenous sources of reducing equivalents via cytochrome c is also observed.