Synthesis of hydroxycinnamic acid esters of betacyanins via 1-O-acylglucosides of hydroxycinnamic acids by protein preparations from cell suspension cultures of Chenopodium rubrum and petals of Lampranthus sociorum.

Planta

PubMedID: 24221424

Bokern M, Strack D. Synthesis of hydroxycinnamic acid esters of betacyanins via 1-O-acylglucosides of hydroxycinnamic acids by protein preparations from cell suspension cultures of Chenopodium rubrum and petals of Lampranthus sociorum. Planta. 1988;174(1):101-5.
Protein preparations from cell suspension cultures of Chenopodium rubrum L. and petals of Lampranthus sociorum (L.Bol.) N.E.Br. (Mes.C.L.Bol.) catalyzed the formation of acylated betacyanins, i.e. celosianin I and II (p-coumaroyl-and feruloylamaranthins) and lampranthin I and II (p-coumaroyl- and feruloylbetanins), from 1-O-(p-coumaroyl)-and 1-O-feruloyl-ß-glucoses as acyldonors and the respective acceptor molecules amaranthin (betanidin 5-O-sophorobiuronic acid = betanidin 5-O-ß-[1??2']-glucuronosyl-ß-glucoside) and betanin (betanidin 5-O-ß-glucoside). The enzymes involved could generally be classified as 1-O-hydroxycinnamoyl-ß-glucose:betanidinglycoside O-hydroxycinnamoyltransferases (EC 2.3.1.-).