Biosynthesis and genetic control of isovitexin 2″-O-arabinoside in petals of Silene dioica
| Autor: | John Kamsteeg, Jan van Brederode, Gerrit van Nigtevecht, Ria Heinsbroek |
|---|---|
| Rok vydání: | 1979 |
| Předmět: |
Arabinose
chemistry.chemical_classification biology Stereochemistry Isovitexin Caryophyllaceae Plant Science General Medicine Horticulture biology.organism_classification Biochemistry Silene dioica chemistry.chemical_compound Enzyme Biosynthesis chemistry Petal Molecular Biology Arabinosyltransferase activity |
| Zdroj: | Phytochemistry. 18:935-937 |
| ISSN: | 0031-9422 |
| DOI: | 10.1016/s0031-9422(00)91452-3 |
| Popis: | In petals of Silene dioica plants, an enzyme has been demonstrated which catalyses the transfer of the arabinose moiety of UDP-arabinose to the hydroxyl group on the 2″-position of the carbon-carbon bound glucose of isovitexin. The presence of this arabinosyltransferase activity is controlled by the dominant allele gl A . Maximal activity takes place at pH 7.2–7.5; the reaction is stimulated by the divalent metal ions Mg and Mn. For optimal solubilization of the enzyme, Triton X-100 is necessary. Substrate specificity and kinetic behaviour have been investigated. |
| Databáze: | OpenAIRE |
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