The Physiology of Sugar-Cane V. Kinetics of Sugar Accumulation

Abstract

Radioisotope techniques were used to study kinetics of sucrose, glucose, and fructose accumulation in slices of immature sugar·cane tissue. For all three sugars, accumulation rate was P. hyperbolic function of sugar concentration, suggesting intermediate compound formation between the sugars and some receptor or "carrier" in the cell. Sucrose and glucose interacted competitively, implying that, these two sugars (and probably also fructose, fructose 6-phosphate, and glucose I-phosphate) shared the same carrier.