Peroxide Levels and the Activities of Catalase, Peroxidase, and Indoleacetic Acid Oxidase during and after Chilling Cucumber Seedlings
| Autor: | Reff G. Omran |
|---|---|
| Rok vydání: | 1980 |
| Předmět: |
chemistry.chemical_classification
Oxidase test biology Physiology Short Communication fungi food and beverages Plant Science Peroxide Enzyme assay chemistry.chemical_compound Indoleacetic acid oxidase Enzyme chemistry Biochemistry Catalase Genetics biology.protein heterocyclic compounds Food science Catalase-peroxidase Peroxidase |
| Zdroj: | Plant Physiology. 65:407-408 |
| ISSN: | 1532-2548 0032-0889 |
| DOI: | 10.1104/pp.65.2.407 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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