title: Genetic control of anthocyanin-O-methyltransferase activity in flowers of Petunia hybrida.
abstract: The relation between four methylation genes (Mt1, Mt2, Mf1 and Mf2) in flowers of Petunia hybrida and anthocyanin-methyltransferase activity was investigated in vitro. All genes controlled methyltransferase activity. This activity was measured with cyanidinnd petunidin-derivatives as substrates. A cross provided evidence that the Mf-genes regulate methyltransferases which are distinct from those controlled by the Mtgenes. Different effects of the two Mf-genes in vivo are shown. The results suggest that the four methylationgenes control four different methyltransferases.
authors.affiliation: Department of Plant Physiology, University of Amsterdam, 318, Kruislaan.
authors.forename: L M
authors.initials: LM
authors.lastname: Jonsson
authors.forename: P
authors.initials: P
authors.lastname: de Vlaming
authors.forename: H
authors.initials: H
authors.lastname: Wiering
authors.forename: M E
authors.initials: ME
authors.lastname: Aarsman
authors.forename: A W
authors.initials: AW
authors.lastname: Schram