Light Sensitivity of 22Na, 86Rb, and 42K Absorption by Different Tissues of Bean Leaves
Open Access
- 1 June 1975
- journal article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 55 (6) , 978-981
- https://doi.org/10.1104/pp.55.6.978
Abstract
Autoradiographs of 22Na-loaded bean (Phaseolus vulgaris L. cv. `Brittle Wax') leaf slices showed that most of the tracer was concentrated in vascular tissue. Rubidium-86 was uniformly distributed in slices that had been incubated in darkness; after incubation in the light many small dark spots appeared on the autoradiographs, apparently corresponding with the stomata. Autoradiographs of 42K-loaded slices showed a rather uniform distribution of the tracer, whether the slices had been incubated in light or in darkness.Keywords
This publication has 4 references indexed in Scilit:
- The active transport of ions in plant cellsQuarterly Reviews of Biophysics, 1970
- Specific Requirement of Potassium for Light-Activated Opening of Stomata in Epidermal StripsPlant Physiology, 1969
- Function of Bean Roots and Stems in Sodium RetentionPlant Physiology, 1964
- Accumulation of Potassium, Cesium, and Rubidium in Bean Plants Grown in Nutrient SolutionsPlant Physiology, 1960