Genetical and biochemical evidence that the hydroxylation pattern of the anthocyanin B-ring in Silene dioica is determined at the p-coumaroyl-coenzyme a stage |
| |
Authors: | John Kamsteeg Jan van Brederode Gerrit van Nigtevecht |
| |
Institution: | Department of Population and Evolutionary Biology, University of Utrecht, Padualaan 8, Utrecht, The Netherlands |
| |
Abstract: | In petals of Silene dioica, gene P controls the 3′-hydroxylation of the anthocyanin B-ring and the hydroxylation pattern of the hydroxycinnamoyl acyl group bound to the 4″'-hydroxyl group of rhamnose of anthocyanidin 3-rhamnosyl(1→6)glucoside-5-glucoside. In this paper, experiments are presented which show that gene P is involved in the hydroxylation of p-coumaroyl-CoA to caffeoyl-CoA, which is then used both as a precursor in anthocyanin biosynthesis and as a substrate for the final acylation. |
| |
Keywords: | Caryophyllaceae red campion anthocyanin biosynthesis pelargonidin and cyanidin glycosides caffeoyl-CoA hydroxylation genetic control |
本文献已被 ScienceDirect 等数据库收录! |