Characterization of anthocyanin p-coumaroyltransferase in flowers of Iris ensata

Autor:	Teruyuki Imayama, Kenji Katoh, Tsutomu Yabuya, Masa-atsu Yamaguchi, Yuko Fukui, Ikuo Ino
Rok vydání:	2001
Předmět:	Bud Plant Science General Medicine Biology biology.organism_classification Malvidin Anthocyanidins Iridaceae chemistry.chemical_compound chemistry Petunidin Anthocyanin Botany Genetics Iris ensata Agronomy and Crop Science Anthocyanidin
Zdroj:	Plant Science. 160:499-503
ISSN:	0168-9452
DOI:	10.1016/s0168-9452(00)00417-9
Popis:	Malvidin and petunidin 3-(p-coumaroyl)rhamnosylglucoside-5-glucosides as well as nonacylated 3-rhamnosylglucoside-5-glucoside of these anthocyanidins were detected as major anthocyanins in cyanic flowers of Iris ensata. Enzyme extracts from flower buds of this plant catalyzed the transfer of the p-coumaroyl moiety from p-coumaroyl-CoA to both the anthocyanidin 3-rhamnosylglucoside and 3-rhamnosylglucoside-5-glucoside to form the anthocyanidin 3-(p-coumaroyl) rhamnosylglucoside and 3-(p-coumaroyl) rhamnosylglucoside-5-glucoside, at a ratio of ca. 1 to 4, respectively. The activities of this enzyme were also examined for various cyanic and acyanic cultivars, in addition to the characterization of the p-coumaroyltransferase. The sequence of acylation and 5-glucosylation in the anthocyanin biosynthesis of this plant is discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ed91aeaad4fe30952977a5d7d6093bd https://doi.org/10.1016/s0168-9452(00)00417-9 Zobrazit plný text záznamu Full Text from ScienceDirect