Effect of Certain Plant Growth Substances on Oxidative Phosphorylation In Rat Liver Mitochondria.

Abstract

2,4-Dichlorophenoxyacetic acid was shown to be an uncoupling agent for oxidative phosphorylation and to stimulate the respiration of rat liver mitochondria in a phosphate-deficient medium. p-Chlorophenoxy-acetic acid was much less potent in producing the above effects. Indole-3-acetic acid, indolebutyric acid and alpha-naphthalene-acetic acid were inactive. The results were discussed in relation to the metabolism of plant and animal tissues.