Rotenone-insensitive NADH

I. Thus when electrons enter the alternative respiratory pathway through the rotenone-insensitive NADH dehydrogenase, the external NADH dehydrogenase, or succinate dehydrogenase (Complex II), and pass to O2 via the cyanide-resistant alternative oxidase, energy is not conserved as ATP but is released as heat. A skunk cabbage can use the heat to melt snow, produce a foul stench, or attract beetles or flies. 

Rotenone-insensitive NADH-cytochrome c reductase Chap. 10... 

ATP is instead released as heat. Plant mitochondria also have an alternative NADH dehydrogenase, insensitive to the Complex I inhibitor rotenone (see Table... 

As in the preceding experiments (Figs. 15-17), in the presence of the proton acceptor 2,4-dinitrophenol (DNP) instead of MNQ, the positive shift of the Volta potential is characterized by saturation curves with the semimaximum values reached at a concentration of DNP of 70 M (Fig. 18) and a concentration of NADH of 22 M (Fig. 19). In contrast to the system in which MNQ was used as the electron acceptor, the charging of the octane phase accompanied by the reduction of ferricyanide proved to be insensitive to rotenone. Rotenone also did not suppress the NADH-ferricyanide activity of the enzyme complex measured in an aqueous medium. 

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