7Aida R.,Yishida K.,Kondo T.,Kishimoto S.,and Shibata M.,2000,Copigmentation gives bluer flowers on transgenic torenia plants with the antisense dihydroflavonol-4-reductase,Plant Science,160:49-56.
8de Vetten N.,Ter Horst J.,van Schaik H.P.,de Boer A.,Mol J.,and Koes R,1999,A cytochrome b5 is required for full activity of flavonoid 3',5'-hydroxylase,a cytochrome P450 involved in the formation of blue flower colors,Proc.Natl.Acad.Sci.USA.96:778-783.
9Forkmann G.,and Martens S.,2001,Metabolic engineering and applications of flavonoids,Current Opinion in Biotechnology,12:155-160.
10Harbome J.B.,and Williams C.A.,2000,Advances in flavonoid research since 1992,Phytochemistry,55:481-504.