The effect of hydrogen ion concentration on the uptake and metabolism of glucose-U-14C by auxin-treated pea root tips

Abstract

Hydrogen ion concentration has been found to have a marked effect on the response of pea root tips to auxins. In addition, auxins have been shown to exert certain specific effects on the metabolism of 14C-labelled glucose and related metabolites. The present experiments show that varying the pH modifies the auxin effects on intermediary metabolism and growth in entirely different ways. It is concluded that the auxin inhibition of growth must operate through a different mechanism than the effect on inter mediary metabolism of glucose.