Extensor and Flexor Protoplasts from Samanea Pulvini
- 1 November 1984
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 76 (3), 685-690
- https://doi.org/10.1104/pp.76.3.685
Abstract
Concentrations of K, Cl, P, S, and Ca in extensor and flexor protoplasts from open pulvini of the nyctinastic tree S. saman were estimated using X-ray microanalysis. This technique is particularly suitable when absolute numbers of protoplasts are low, because < 100 protoplasts are required to obtain statistically significant data. Flexor protoplasts contain similar concentrations of P and S but almost twice as much K and Cl as extensor protoplasts. Low levels of total measurable osmoticum suggest that extensive leakage has occurred during protoplast isolation. Both extensor and flexor protoplasts apparently contain some unidentified osmoticum not detectable by X-ray analysis. Extensor protoplasts must have more unidentified osmoticum to compensate for their lower levels of K and Cl.This publication has 7 references indexed in Scilit:
- Extensor and Flexor Protoplasts from Samanea PulviniPlant Physiology, 1984
- Elemental analysis of freeze-dried thin sections of Samanea motor organs: barriers to ion diffusion through the apoplast.The Journal of cell biology, 1982
- Apoplastic transport of ions in the motor organ of SamaneaProceedings of the National Academy of Sciences, 1981
- Unequal distribution of potassium and anions within the Phaseolus pulvinus during circadian leaf movementPlant and Cell Physiology, 1979
- Phytochrome and Circadian Clocks in SamaneaPlant Physiology, 1977
- Potassium Flux and Leaf Movement in Samanea saman The Journal of general physiology, 1974
- Rhythmic Leaflet Movement in Albizzia julibrissinPlant Physiology, 1973