, 1993), a putative Arabidopsisgibberellin β-hydroxylase (31%, GenBank accession number AC003672), a flavanone-3hydroxylase or naringenin-3-dioxygenase (FHT, 30%) from Dianthus caryophyllus(Britsch et al., 1993), and a leucoanthocyanidin dioxygenase from Per-