Flavonoids from shoots and roots of Trifolium repens (white clover) grown with or without the arbuscular mycorrhizal fungus Glomus intraradices

A. PONCE, MARIA; M. CERVIÑO, JOSÉ; M. GODEAS, ALICIA; A. OCAMPO, JOSÉ; ERRA BALSELLS, ROSA

PHYTOCHEMISTRY

Elsevier

Lugar: Amsterdam.; Año: 2004 vol. 65 p. 1925 - 1930

0031-9422

Abstract White clover (Trifolium repens) plants were grown in the presence or absence of the arbuscular mycorrhizal fungus Glomus intraradices. Flavones, 40,5,6,7,8-pentahydroxy-3-methoxyflavone and 5,6,7,8-tetrahydroxy-3-methoxyflavone, as well as two flavones 3,7-dihydroxy-40-methoxyflavone and 5,6,7,8-tetrahydroxy-40-methoxyflavone never previously reported in plants, were isolated. The known 3,5,6,7,8-pentahydroxy-40-methoxyflavone, 20,30,40,50,60-pentahydroxy-chalcone, 6-hydroxykaempferol, 40,5,6,7,8-pentahydroxyflavone and 3,40-dimethoxykaempferol were also obtained. Analysis of extracts obtained from roots and shoots revealed that the compositions of the flavonoid mixtures varied with growing conditions. Quercetin, acacetin and rhamnetin accumulated in roots of inoculated plants, whereas they were not detected in non-inoculated plants.Trifolium repens) plants were grown in the presence or absence of the arbuscular mycorrhizal fungus Glomus intraradices. Flavones, 40,5,6,7,8-pentahydroxy-3-methoxyflavone and 5,6,7,8-tetrahydroxy-3-methoxyflavone, as well as two flavones 3,7-dihydroxy-40-methoxyflavone and 5,6,7,8-tetrahydroxy-40-methoxyflavone never previously reported in plants, were isolated. The known 3,5,6,7,8-pentahydroxy-40-methoxyflavone, 20,30,40,50,60-pentahydroxy-chalcone, 6-hydroxykaempferol, 40,5,6,7,8-pentahydroxyflavone and 3,40-dimethoxykaempferol were also obtained. Analysis of extracts obtained from roots and shoots revealed that the compositions of the flavonoid mixtures varied with growing conditions. Quercetin, acacetin and rhamnetin accumulated in roots of inoculated plants, whereas they were not detected in non-inoculated plants.0,5,6,7,8-pentahydroxy-3-methoxyflavone and 5,6,7,8-tetrahydroxy-3-methoxyflavone, as well as two flavones 3,7-dihydroxy-40-methoxyflavone and 5,6,7,8-tetrahydroxy-40-methoxyflavone never previously reported in plants, were isolated. The known 3,5,6,7,8-pentahydroxy-40-methoxyflavone, 20,30,40,50,60-pentahydroxy-chalcone, 6-hydroxykaempferol, 40,5,6,7,8-pentahydroxyflavone and 3,40-dimethoxykaempferol were also obtained. Analysis of extracts obtained from roots and shoots revealed that the compositions of the flavonoid mixtures varied with growing conditions. Quercetin, acacetin and rhamnetin accumulated in roots of inoculated plants, whereas they were not detected in non-inoculated plants.0-methoxyflavone and 5,6,7,8-tetrahydroxy-40-methoxyflavone never previously reported in plants, were isolated. The known 3,5,6,7,8-pentahydroxy-40-methoxyflavone, 20,30,40,50,60-pentahydroxy-chalcone, 6-hydroxykaempferol, 40,5,6,7,8-pentahydroxyflavone and 3,40-dimethoxykaempferol were also obtained. Analysis of extracts obtained from roots and shoots revealed that the compositions of the flavonoid mixtures varied with growing conditions. Quercetin, acacetin and rhamnetin accumulated in roots of inoculated plants, whereas they were not detected in non-inoculated plants.0-methoxyflavone, 20,30,40,50,60-pentahydroxy-chalcone, 6-hydroxykaempferol, 40,5,6,7,8-pentahydroxyflavone and 3,40-dimethoxykaempferol were also obtained. Analysis of extracts obtained from roots and shoots revealed that the compositions of the flavonoid mixtures varied with growing conditions. Quercetin, acacetin and rhamnetin accumulated in roots of inoculated plants, whereas they were not detected in non-inoculated plants.0-dimethoxykaempferol were also obtained. Analysis of extracts obtained from roots and shoots revealed that the compositions of the flavonoid mixtures varied with growing conditions. Quercetin, acacetin and rhamnetin accumulated in roots of inoculated plants, whereas they were not detected in non-inoculated plants.
2004 Published by Elsevier Ltd.2004 Published by Elsevier Ltd. Keywords: White clover; Trifolium repens; Leguminosae; Shoots; Roots; Flavonoids; Flavones; Chalcone; Glomus intraradices; 40,5,6,7,8- Pentahydroxy-3-methoxyflavone; 5,6,7,8-Tetrahydroxy-3-methoxyflavone; 3,7-Dihydroxy-40-methoxyflavone; 5,6,7,8-Tetrahydroxy-40-methoxyflavoneWhite clover; Trifolium repens; Leguminosae; Shoots; Roots; Flavonoids; Flavones; Chalcone; Glomus intraradices; 40,5,6,7,8- Pentahydroxy-3-methoxyflavone; 5,6,7,8-Tetrahydroxy-3-methoxyflavone; 3,7-Dihydroxy-40-methoxyflavone; 5,6,7,8-Tetrahydroxy-40-methoxyflavone0-methoxyflavone; 5,6,7,8-Tetrahydroxy-40-methoxyflavone