Polygonum tinctoria

The Action of Reagents on the Leaves of Polygonum Tinctoria, Manchester, 1901 (with 6 coloured plates). [Pg.400]

Quercitrin (= Quercetin-3-rhamnoside) (flavonol O-glycoside) Widespread Polygonum spp. (Polygonaceae), Quercus tinctoria (Fagaceae) ACE (51% inhibition at 300 pM) [76]... [Pg.581]

Strobilanthes cusia (Acanthaceae), Isatis tinctoria (woad) (Brassicaceae), Couroupita guaianensis (Lecithidaceae), Polygonum tinctorum (Polygonaceae) woad yielded blue dye and body paint of ancient Britons e.g. Boadicea... [Pg.264]

Tryptanthrin (53) C15H8N2O2 268 (261) Candida lipolytica (131) Couroupita guaianensis Aubl. (126,146) Isatis tinctoria (129) Leucopaxillus cerealis var. piceina (Peck) (132) Polygonum tinctorum (129,147)... [Pg.133]

In 1992, Xia and Zenk could show in feeding studies with C-labelled indole and 3- C-labelled (S)-tryptophan on various plants, including Polygonum tinctorium, Indigofera tinctoria and Isatis tinctoria, that the metabolism does not involve tryptophan directly, but proceeded via indole. [16] In the biosynthesis of indoxyl, tryptophan is first degraded, by means of a tryptophanase, to indole, and this is then hydroxylated. [17] Finally, indoxyl binds to various sugars. [Pg.23]

Thereby indican (lH-indol-3-yl /l-(D)-glucoside) from Indigofera tinctoria), and respectively isatan A and B (liT-indol-3-yl 6 -0-malonyl-(D)-ribohex-3 -ulopyranoside and liT-indol-3-yl jS-(D)-ribohex-3 -ulopyranoside from Isatis tinctoria and Polygonum tinctorium), are all cleaved enzymatically by jS-glucosidases. [13,19]... [Pg.25]

Isatan A R Isatan B R = H Isatis tinctoria. Polygonum tinctorium)... [Pg.25]

Indican (3-hydroxyindole p-o-glucoside) (82) occurs mainly in the genera Indigofera (Fabaceae), Isatis (Brassica-ceae), and Polygonum (Polygonaceae). When L-[5- H]tryp-tophan was administered to young plants of Isatis tinctoria (woad) and Polygonum tinctorium, radioactively labeled indican was isolated (Maier et al., 1990). In the woad plant. [Pg.267]

Maier, W., B. Schumann, and D. Groger, Biosynthesis of indoxyl derivatives in Isatis tinctoria and Polygonum tinctorium. Phytochemistry, 29, 817-819 (1990). [Pg.271]

Baphicacanthus cusia (Acanthaceae) [19], Calanthe aristurifera (Orchidaceae) [33], C. discolor [33], C. liukiuensis [35], C. reflexa [33], Isatis indigotica (Brassicaceae) [35], I. tinctoria [28], Polygonum tinctorium (Polygonaceae), [58], Strobilanthes cusia (Acanthaceae) [14], Wrightia tinctoria (Apocynaceae) [31]... [Pg.805]

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