Auxin Has No Effect on Modification of External pH by Soybean Hypocotyl Cells
- 1 May 1977
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 59 (5), 1000-1003
- https://doi.org/10.1104/pp.59.5.1000
Abstract
The cellular adjustment of the pH of the external environment of soybean (Glycine max) hypocotyl elongating cells, frequently assumed to be H+ secretion when the pH is lowered, is unaffected by auxin. These elongating cells actively adjust the external H+ concentration (from any pH in the range of 4-8) to pH 5.4 + 0.2. This pH adjustment occurs in a medium which does not contain K. Growth-optimum auxin concentrations have no effect on cellular pH adjustment of the external medium, whether added at the beginning of the experiment or after the equilibrium pH is attained. The pH adjustment by the cells occurs rapidly and despite the presence of a cuticle.This publication has 10 references indexed in Scilit:
- Comparison of Auxin-induced and Acid-induced Elongation in Soybean HypocotylPlant Physiology, 1977
- Two Elongation Responses to Auxin Respond Differently to Protein Synthesis InhibitionPlant Physiology, 1976
- Rapid Auxin-induced Decrease in Free Space pH and Its Relationship to Auxin-induced Growth in Maize and PeaPlant Physiology, 1976
- Kinetics of Hormone-induced H+ ExcretionPlant Physiology, 1976
- Additional Evidence for Separable Responses to Auxin in Soybean HypocotylPlant Physiology, 1976
- Separation of two responses to auxin by means of cytokinin inhibition.Proceedings of the National Academy of Sciences, 1975
- Hydrogen Ion Entry as a Controlling Factor in the Acid-growth Response of Green Pea Stem SectionsPlant Physiology, 1975
- Auxin-Induced Hydrogen Ion Excretion from Avena ColeoptilesProceedings of the National Academy of Sciences, 1973
- Comparative Effects of Hydrogen Ions, Carbon Dioxide, and Auxin on Pea Stem Segment ElongationPlant Physiology, 1973
- Induction of Coleoptile Elongation by Carbon DioxidePlant Physiology, 1971