Fig. 4. Octanoate ß-oxidation (A) and oleate ß-oxidation (B) in wild-type yeast cells. The medium-chain fatty acid ß-oxidation was completely deficient after 5 mM dinitrophenol had been added to dissipate the
pH, whereas oleate ß-oxidation remained the same. Arrows indicate the time point were DNP was either added (+) or not (-).