Uridine 5?-diphosphate-xylose: anthocyanidin 3-O-glucose-xylosyltransferase from petals of Matthiola incana R.Br.
- 1 December 1986
- journal article
- research article
- Published by Springer Nature in Planta
- Vol. 169 (4) , 559-563
- https://doi.org/10.1007/bf00392107
Abstract
Petals of genetically defined lines of Matthiola incana R.Br. contain a glycosyltransferase which catalyzes the transfer of the xylosyl moiety of uridine 5′-diphosphate-xylose to the glucose of cyanidin 3-glucoside. The enzyme also uses 3-glucosides of pelargonidin and delphinidin, cyanidin 3-(p-coumaroyl)-glucoside and 3-(caffeoyl)-glucoside as substrates. The xylosyltransferase exhibits a pH optimum of 6.5. The enzyme activity depends on the stage of bud and flower development. Accumulation of cyanidin 3-glucoside during flower development is correlated with xylosyltransferase activity.Keywords
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