PROPERTIES AND GENETIC-CONTROL OF UDP-L-RHAMNOSE - ANTHOCYANIDIN 3-O-GLUCOSIDE, 6''-O-RHAMNOSYL-TRANSFERASE FROM PETALS OF RED CAMPION, SILENE-DIOICA

被引:8
作者
KAMSTEEG, J
VANBREDERODE, J
VANNIGTEVECHT, G
机构
[1] Department of Population and Evolutionary Biology, University of Utrecht, Utrecht
关键词
anthocyanin biosynthesis; Caryophyllaceae; cyanidin glycosides; genetics; glycosyltransferase; pelargonidin glycosides; rhamnosyltransferase; Silene dioica; UDP-rhamnose;
D O I
10.1016/S0031-9422(00)84283-1
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
In petals of Silene dioica plants the presence of a glycosyltransferase has been demonstrated, which catalyses the transfer of the rhamnosyl moiety of UDP-l-rhamnose to the glucose of cyanidin 3-O-glucoside. This enzyme can also use pelargonidin 3-O-glucoside as a substrate. The enzyme activity is controlled by a single dominant gene N; no rhamnosyltransferase activity is found in petals of n/n plants. The rhamnosyltransferase exhibits an optimum of pH 8.1 and is stimulated by the divalent metal ions Mg, Mn and Co. The biosynthetic pathway for the synthesis of cyanidin 3-rhamnosylglucoside-5-glucoside in petals of S. dioica is discussed. © 1979.
引用
收藏
页码:659 / 660
页数:2
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