Genetic control of UDPglucose:flavonol 3-O-glucosyltransferase in the endosperm of maize.
The enzyme UDPglucose:flavonol 3-O-glucosyltransferase is shown to be under the coordinate control of three genes involved in anthocyanin biosynthesis in the aleurone of maize: C, R, and BZ. Of the three, BZ appears to be the structural gene. Data presented here (dosage comparisons, induction in the mutant c-p, and effect of paramutation at R) indicate that the enzyme is inducible by substances resulting from the action of the C and R genes and that active forms of C and R are required for this induction. Mechanisms of regulation of the BZ gene by C and R are discussed.
D005419:Flavonoids / Q000378:metabolism; D005796:Genes; D005964:Glucosyltransferases / Q000378:metabolism; D009154:Mutation; D010860:Pigments, Biological / Q000378:metabolism; D014532:Uridine Diphosphate Glucose; D003313:Zea mays / Q000201:enzymology*
D005419:Flavonoids; D010860:Pigments, Biological; D005964:Glucosyltransferases; C023249:flavonol 3-O-glucosyltransferase; D014532:Uridine Diphosphate Glucose