Potassium Transport in Corn Roots
Open Access
- 1 October 1983
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 73 (2), 208-215
- https://doi.org/10.1104/pp.73.2.208
Abstract
The relative transport capabilities of the cells of the root periphery and cortex were investigated using a variety of experimental techniques. Brief (30 seconds to 1 minute) exposures with the penetrating sulfhydryl reagent, N-ethyl maleimide (NEM), and the impermeant reagent, p-chloromercuribenzene sulfonic acid (PCMBS), dramatically reduced 86Rb+ (0.2 millimolar RbCl) uptake into 2 centimeter corn (Zea mays [A632 × (C3640 × Oh43)]) root segments. Autoradiographic localization studies with [3H]NEM and [203Hg]PCMBS demonstrated that, during short term exposures with either reagent, sulfhydryl binding occurred almost exclusively in the cells of the root periphery.This publication has 13 references indexed in Scilit:
- Potassium Transport in Corn RootsPlant Physiology, 1982
- Isolation and Transport Properties of Protoplasts from Cortical Cells of Corn RootsPlant Physiology, 1982
- Influence of Turgor Pressure Manipulation on Plasmalemma Transport of HCO3− and OH− in Chara corallinaPlant Physiology, 1981
- Inhibition of Anion Transport in Corn Root ProtoplastsPlant Physiology, 1981
- Sulfhydryl Group Involvement in Plasmalemma Transport of HCO3− and OH− in Chara corallinaPlant Physiology, 1980
- Ion Transport in Isolated Protoplasts from Tobacco Suspension CellsPlant Physiology, 1979
- ION UPTAKE IN RELATION TO THE DEVELOPMENT OF A ROOT HYPODERMISNew Phytologist, 1976
- Effect of Lanthanum on Ion Absorption in Corn RootsPlant Physiology, 1975
- Localization of Erythrocyte Membrane Sulfhydryl Groups Essential for Glucose TransportThe Journal of general physiology, 1965
- Sodium and Potassium Uptake by Seedlings of Hordeum VulgareAustralian Journal of Biological Sciences, 1965