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Etioplasts aqueously isolated from leaves of etiolated plants of two varieties of Avena sativa contain all the flavonoid compounds of the whole leaf: apigenin-7-methoxy (?)-8-C-rhamnosylglucosylgly (u) coside (or -8-C-glucosylrhamnosylgly (u) coside), apigenin-6-C-arabinosylglucoside, apigenin-8-C-glucosylglucoside and in variety 1 a derivative of kaempferol, in variety 2 the flavone-C-glycoside saponaretin. The distribution of these compounds however is different in etioplasts and leaves: in etioplasts of variety 1 the kaempferol-derivative, in those of variety 2 saponaretin is relatively enriched. Presence of flavonoids could also be demonstrated in isolated prolamellar bodies from etioplasts of Avena variety 2.

zeitschrift für naturforschung b

Untersuchungen zur Lokalisation von Flavonoiden in Plastiden, I / Experiments on the Localisation of Flavonoids in Plastids, I: Flavonoide in Etioplasten von Avena sativa L. / Flavonoids in Etioplasts of Avena sativa L.