- Turkish Journal of Chemistry
- Vol: 26 Issue: 5
- The Membrane Potentials of Periderm and Cuticular Membranes
The Membrane Potentials of Periderm and Cuticular Membranes
Authors : A. Şahin, Y. Çengeloğlu And M. Ersöz
Pages : 777-782
View : 9 | Download : 6
Publication Date : 9999-12-31
Article Type : Makaleler
Abstract :The membrane potentials of periderm and cuticular membranes were measured with KCI and NaCl solution using Ag/AgCI electrodes. For the electromotive force (emf) measurements, the concentration in both compartments were brought to equilibrium with the 0.01 M concentration of KCI or NaCl solution, then the one side was kept constant and the other side changed. The estimation of the Donnan potential contribution to the membrane potential was carried out by taking into account the fixed charge concentration, Cx, value. From these measurements electrochemical characterization of the asymmetry and surface layers of the periderm and cuticular membranes can be described.Keywords : Membrane potential, periderm membrane, cuticular membrane, fixed charge concentration, asymmetric potential