Phytochrome Controlled 14 C-Sucrose Uptake into Etiolated Pea Buds: Effects of Gibberellic Acid and Other Substances

Abstract

The previously reported red light enhancement of (14)C-sucrose uptake into etiolated pea buds is inhibited by gibberellic acid applied no later than 2 hours after the light. Auxins, cytokinins and inhibitors of gibberellin biosynthesis are without effect, either alone or in the presence of gibberellic acid.