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- Title
Effect of the surface potential upon ion selectivity found in competitive inhibition of divalent cation uptake. A theoretical approach.
- Authors
Borst-Pauwels, C. W. F. H.; Severens, P. P. J.
- Abstract
The sequence of inhibition of cation uptake caused by a series of cationic inhibitors may shift dramatically on varying the experimental conditions. This sequence depends upon the concentration of the inhibitory cation, the concentration of the substrate cation, the change density of the cell membrane, the ionic strength of the medium and the affinity of the substrate cation for the negative groups located on the cell membrane. A shift in sequence between inhibitory cations can only occur if one of the inhibitory cations shows a greater affinity for the translocation site than the other, while the affinity for the negative groups on the cell membrane is lower.
- Subjects
PLANT physiology; ION selective electrodes; CATIONS; EXPERIMENTAL design; CELL membranes; PLANT translocation
- Publication
Physiologia Plantarum, 1984, Vol 60, Issue 1, p86
- ISSN
0031-9317
- Publication type
Article
- DOI
10.1111/j.1399-3054.1984.tb04255.x