Metabolism of Abscisic Acid and Its Regulation in Xanthium Leaves during and after Water Stress
- 1 March 1983
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 71 (3), 477-481
- https://doi.org/10.1104/pp.71.3.477
Abstract
Metabolism of abscisic acid was compared in stressed and in rehydrated leaf blades of Xanthium strumarium L. Chicago strain that were either detached or left intact on the plant. Under all conditions, phaseic acid was the major metabolite. The high level of phaseic acid that was observed in intact plants 1 day after recovery from stress declined slowly and had not yet reached the prestress level 1 week later. The glucosyl ester of abscisic acid, β-d-glucopyranosyl abscisate, accumulated at a low rate during periods of prolonged stress. Repeated stress-recovery cycles resulted in a gradual increase in the level of the glucosyl ester, which did not decline following relief of stress for at least 34 days. The level of the glucosyl ester of abscisic acid may therefore serve as a cumulative indicator of the water stresses to which a particular leaf has been exposed.Keywords
This publication has 16 references indexed in Scilit:
- Isolation and Quantitation of β-d-Glucopyranosyl Abscisate from Leaves of Xanthium and SpinachPlant Physiology, 1982
- Effect of Carbon Dioxide and Light on Ethylene Production in Intact Sunflower PlantsPlant Physiology, 1982
- Translocation and metabolism of glycine betaine by barley plants in relation to water stressPlanta, 1980
- Changes in the Levels of Abscisic Acid and Its Metabolites in Excised Leaf Blades of Xanthium strumarium during and after Water StressPlant Physiology, 1980
- The effect of plant growth regulator treatments on the levels of ethylene emanating from excised turgid and wilted wheat leavesPlanta, 1980
- The Stability of Conjugated Abscisic Acid during WiltingJournal of Experimental Botany, 1978
- Water Potential in Excised Leaf TissuePlant Physiology, 1978
- Translocation Patterns in Xanthium in Relation to Long Day Inhibition of FloweringPlant Physiology, 1977
- The relationship between leaf water potential ? leaf and the levels of abscisic acid and ethylene in excised wheat leavesPlanta, 1977
- Abscisic Acid Content, Transpiration, and Stomatal Conductance As Related to Leaf Age in Plants of Xanthium strumarium L.Plant Physiology, 1976