Petunia DFR cannot reduce dihydrokaempferol, which
explains the lack of pelargonidin-type anthocyanins and,
thus, the brick red orange flower color in petunia
(Forkmann and Ruhau 1987). The pelargonidinaccumulating
brick red/orange petunia was generated by
expression of a maize DFR gene in a petunia that is
deficient in F35H, F3H and FLS activities and