||P.108 left column bottom paragraph: "ATP synthesis via ETP. During the flow of electrons from the first electron carrier to the final electron acceptor, i.e., during the hydrogenation part of catabolic redox processes, ATP may be generated via a mechanism termed ETP (see Table 2). In this mechanism the electrochemical potential between redox partners of different redox potential (Table 5) is used to drive the phosphorylation of ADP." P.117 right column 3rd paragraph: "Desulfuromonas acetoxidans catalyzes the oxidation of acetate to CO2 with elemental sulfur as the electron acceptor (ref 488). As succinate cannot be oxidized to fumarate (succinate/fumarate, E0' = +33 mV) with elemental sulfur (S°/SH-, E0' = -270 mV) (see Table 5), the participation of the citric acid cycle in the formation of CO2 from acetate appears rather unlikely."