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TitleIdentification of flavonol and anthocyanin metabolites in leaves of Petunia 'Mitchell' and its Lc transgenic
Publication TypeJournal Article
Year of Publication1998
AuthorsBloor, S.J., Bradley J.M., Lewis D.H., and Davies K.M.
Pagination1427 - 1430
Date Published1998
ISSN00319422 (ISSN)
Keywordsacylation, anthocyanin, caffeic acid derivative, color, complementary dna, conference paper, ferulic acid, flavonol, glucoside, kaempferol 3 galactoside, kaempferol 3 sophoroside, maize, metabolite, nonhuman, phytochemistry, pigment, plant glycoside, plant leaf, quercetin derivative, sophorose, transgenic plant
AbstractThe leaves of Petunia 'Mitchell', a model species employed for transgenic manipulation, contain a wider array of acylated flavonol glycosides than occur in the petals. Three new acylated flavonol glycosides are described, kaempferol-3-O-(2-O,feruloyl-β-D-glucosyl(1→2)6-O- malonylglucoside), quercetin-3-O-(2-O-caffeoyl-β-D-glucosyl(1→2)6-O- malonylglucoside), and quercetin-3-O-(2-O-feruloyl-β-D- glucosyl(1→2)glucoside). A transgenic Mitchell line expressing the maize 'Leaf colour' (Lc) cDNA had enhanced levels of anthocyanins, particularly in their leaves. These anthocyanins were determined to be the same acylated petunidin glycosides as those which produce a slight red colouration in the tube of the flowers of Petunia 'Mitchell'.

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