An anthocyanin 5-O-glucosyltransferase from flowers of Petunia hybrida was purified about 30-fold. Using uridine 5'-diphosphoglucose as glucose donor (Km 0.22 mM), the enzyme glucosylated the 3-(p-coumaroyl)-rutinoside derivatives of delphinidin and petunidin (Km 3 gM), isolated from pollen of Petun
Genetic control of anthocyanin-O-methyltransferase activity in flowers ofPetunia hybrida
β Scribed by L. M. V. Jonsson; P. Vlaming; H. Wiering; M. E. G. Aarsman; A. W. Schram
- Publisher
- Springer
- Year
- 1983
- Tongue
- English
- Weight
- 568 KB
- Volume
- 66-66
- Category
- Article
- ISSN
- 0040-5752
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The gene Po in pollen of Petunia hybrida Vilm. controls a discrete step in flavonoid biosynthesis. In recessive genotypes, naringenin-chalcone (4, 2',4',6'-tetrahydroxychalcone) is accumulated, whereas, under the influence of the wild-type allele flavonols and anthocyanins are formed. Enzymic invest
In flower extracts of defined genotypes of Matthiola incana, an enzyme was demonstrated which catalyzes the transfer of the glucosyl moiety of uridine 5'-diphosphoglucose (UDPGlc) to the 5-hydroxyl group of pelargonidin and cyanidin 3-glycosides and acylated derivatives. The best substrate for 5-glu