Effect of pH and Auxin on Chloride Uptake into Avena Coleoptile Cells
- 1 December 1974
- journal article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 54 (6), 835-839
- https://doi.org/10.1104/pp.54.6.835
Abstract
The effect of pH on (36)Cl(-) movement into coleoptile cells (Avena sativa L. cv. Garry) was investigated and compared with effects of indoleacetic acid. (36)Cl(-) uptake, but not efflux, is stimulated when coleoptile sections are placed in media adjusted to pH levels from 5 to 3 after a preincubation period at pH 6.5. The enhancement is seen within 2 minutes, is not correlated with growth, and is completely erased by respiratory inhibitors. In comparison to the acid-induced stimulation, the stimulatory effect of indoleacetic acid on (36)Cl(-) uptake is also not accompanied by accelerated efflux, and indoleacetic acid does not further stimulate (36)Cl(-) uptake into 1-millimeter sections beyond that seen at pH 3.5 without auxin.Keywords
This publication has 12 references indexed in Scilit:
- Acid to base phosphorylation and membrane integrity in plastids of greening maizeBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1971
- Compartments and Fluxes of K+, NA+, and CL− in Avena Coleoptile CellsPlant Physiology, 1970
- Enhancement of Wall Loosening and Elongation by Acid SolutionsPlant Physiology, 1970
- Time Course of Auxin Stimulations of GrowthPlant Physiology, 1970
- Active H+ Efflux from Cells of Low-salt Barley Roots during Salt AccumulationPlant Physiology, 1970
- CHEMIOSMOTIC COUPLING IN OXIDATIVE AND PHOTOSYNTHETIC PHOSPHORYLATIONBiological Reviews, 1966
- ATP formation caused by acid-base transition of spinach chloroplasts.Proceedings of the National Academy of Sciences, 1966
- Absorption of Chloride by Barley Roots: Kinetics and SelectivityPlant Physiology, 1965
- The Effect of pH and Temperature on the Absorption Of Potassium and Bromide by Barley Roots2Plant Physiology, 1957
- EFFECTS OF pH AND THE COMPONENTS OF BICARBONATE AND PHOSPHATE BUFFERED SOLUTIONS ON THE METABOLISM OF POTATO DISCS AND THEIR ABILITY TO ABSORB IONSPlant Physiology, 1941