Redirection of anthocyanin synthesis in Osteospermum hybrida by a two-enzyme manipulation strategy

The redirection of anthocyanin synthesis in Osteospermum hybrida away from delphinidin towards pelargonidin derivatives required both the introduction of dihydroflavonol 4-reductase activity with dihydrokaempferol as a substrate and the suppression of F3′5′H activity by means of genetic engineering.