Kinetics of iron absorption by excised rice roots
- 1 January 1971
- journal article
- Published by Springer Nature in Planta
- Vol. 96 (3), 262-270
- https://doi.org/10.1007/bf00387445
Abstract
Studies on the rate of iron absorption by excised rice roots from solutions of different concentrations of FeSO4 showed the presence of two patterns, one in the low (0.005–0.5 mM) and the other in the high (1–30 mM) concentration range. The presence of CaSO4 or MnSO4 at 0.5 mM enhanced Fe++ absorption in the low concentration range, while CaSO4 at 10 mM inhibited Fe absorption in the high concentration range in a competitive manner. Fe++ absorption at both low and high concentrations was sensitive to metabolic inhibitors. The isotherm for Fe++ absorption at O° exhibited an initial absorption shoulder in both low and high concentrations and was suggestive of a latent ion-transport capacity for Fe++ in rice roots.This publication has 23 references indexed in Scilit:
- Magnesium Uptake by SoybeansPlant Physiology, 1969
- Dual Mechanisms of Salt Uptake in Relation to Compartmentation and Long-Distance TransportAnnual Review of Plant Physiology, 1969
- Salt Absorption by PlantsAnnual Review of Plant Physiology, 1968
- Manganese Absorption by Excised Barley RootsPlant Physiology, 1968
- Calcium Inhibition of Potassium Absorption in Corn RootsPlant Physiology, 1967
- Identification of Indole-3-Acetic Acid in the Basidiomycete Schizophyllum communePlant Physiology, 1967
- Selective Inhibition of Absorption and Long Distance Transport in Relation to the Dual Mechanisms of Ion Absorption in Maize SeedlingsPlant Physiology, 1967
- Dual Pattern of Ion Absorption by Plant Cells and by PlantsNature, 1966
- Evidence for Translocation of Iron in PlantsPlant Physiology, 1965
- The Significance of Calcium on the Apparent Permeability of Cell Membranes and the Effects of Substitution with Other Divalent IonsPhysiologia Plantarum, 1965