Ionic Basis of the Photoresponse of Aplysia Giant Neuron: K + Permeability Increase
- 17 November 1972
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 178 (4062) , 755-756
- https://doi.org/10.1126/science.178.4062.755
Abstract
The giant neuron of the Aplysia abdominal ganglion hyperpolarizes during illumination. The light-initiated potential change is associated with an increase of membrane conductance. It reverses sign at the potassium equilibrium potential (about -83 millivolts), which was determined from direct measurements of internal potassium activity. The membrane hyperpolarization is produced entirely by a light-induced increase in potassium permeability.Keywords
This publication has 11 references indexed in Scilit:
- Active Transport of Potassium and Chloride in an Identifiable Molluscan NeuronScience, 1972
- Photoreceptors in Primitive Chordates: Fine Structure, Hyperpolarizing Receptor Potentials, and EvolutionScience, 1971
- Membrane Conductances and Spectral Sensitivities of Pecten PhotoreceptorsThe Journal of general physiology, 1970
- The Ventral Photoreceptor Cells of Limulus The Journal of general physiology, 1969
- Effects of Sodium, Potassium, and Calcium Ions on Slow and Spike Potentials in Single Photoreceptor CellsThe Journal of general physiology, 1969
- Light-induced resistance changes in single photoreceptors ofnecturus andgekkoVision Research, 1969
- Conductance Changes Associated with Receptor Potential in Limulus PhotoreceptorsScience, 1968
- A Contribution of an Electrogenic Na+ Pump to Membrane Potential in Aplysia NeuronsThe Journal of general physiology, 1968
- An electrical model of the vertebrate photoreceptor cellVision Research, 1967
- LIGHT ENERGY CONVERSION IN NEURONAL MEMBRANES*Photochemistry and Photobiology, 1964