Active Transport of Choline Sulfate by Barley Roots
Open Access
- 1 July 1964
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 39 (4), 586-589
- https://doi.org/10.1104/pp.39.4.586
Abstract
Barley roots (Hordeum vulgare) take up choline sulfate by 2 mechanisms: A low-range mechanism which is the result of active transport and operates at half maximal velocity at a choline sulfate concentration of approximately 10-5 M. and a high-range mechanism which becomes apparent at about 2 x 10-4 M. A 2-site carrier for choline sulfate with an anionic site which binds the quaternary N and a cat ionic site which binds the sulfate group is proposed.This publication has 9 references indexed in Scilit:
- RESOLUTION OF DUAL MECHANISMS OF POTASSIUM ABSORPTION BY BARLEY ROOTSProceedings of the National Academy of Sciences, 1963
- Hydrolysis of choline-O-sulfate by cell-free extracts from penicilliumBiochimica et Biophysica Acta, 1963
- Choline Sulfate in Higher PlantsScience, 1961
- The essential role of calcium in selective cation transport by plant cellsPlant Physiology, 1961
- The role of choline sulphate in the sulphur metabolism of fungiBiochemical Journal, 1960
- Identification of Phosphoryl Choline as an Important Constituent of Plant Sap.Plant Physiology, 1956
- Kinetics of Sulfate Absorption by Barley RootsPlant Physiology, 1956
- The determination of enzyme inhibitor constantsBiochemical Journal, 1953
- ACETYLCHOLINESTERASE .12. FURTHER STUDIES OF BINDING FORCES1952