Peroxide Levels and the Activities of Catalase, Peroxidase, and Indoleacetic Acid Oxidase during and after Chilling Cucumber Seedlings
- 1 February 1980
- journal article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 65 (2), 407-408
- https://doi.org/10.1104/pp.65.2.407
Abstract
The activities of catalase, peroxidase, indoleacetic acid (IAA) oxidase and peroxide levels in cucumber plants during and after chilling were determined. During 96 hours at 5 C and 85% relative humidity, catalase activity declined, IAA oxidase activity increased, and peroxide concentrations increased. Peroxidase activity was not affected by chilling. When chilled plants were returned to 25 C to recover, enzyme activities and peroxide concentration were restored to their prechilling levels. The increase in peroxide and IAA oxidase activity may inactivate or destroy IAA and thus retard growth.Keywords
This publication has 12 references indexed in Scilit:
- The direct involvement of hydrogen peroxide in indoleacetic acid inactivationBiochemical and Biophysical Research Communications, 1977
- Early Effects of Boron Deficiency on Indoleacetic Acid Oxidase Levels of Squash Root TipsPlant Physiology, 1977
- Involvement of Hydrogen Peroxide in the Regulation of Senescence in PearPlant Physiology, 1977
- Studies on Auxin ProtectorsPlant Physiology, 1973
- A mechanism for the production of ethylene from methional. The generation of the hydroxyl radical by xanthine oxidase.1970
- Increase in Indoleacetic Acid Oxidase Activity of Winter Wheat by Cold Treatment and Gibberellic AcidPlant Physiology, 1970
- Chilling Injury and Changes in Adenosine Triphosphate of Cotton SeedlingsPlant Physiology, 1969
- Enzymatic Auxin Inactivation by Extracts of the Fern, Osmunda cinnamomea L.Plant Physiology, 1955
- Peroxide genesis in plant tissues and its relation to indoleacetic acid destructionArchives of Biochemistry and Biophysics, 1955
- Hydrogen Peroxide in the Enzymic Oxidation of HeteroauxinAustralian Journal of Biological Sciences, 1951