2',3',4',5',6' pentahydroxychalcone 2 3,4' dimethoxykaempferol 2 3,5,6,7,8 pentahydroxy 4' methoxyflavone 2 3,7 dihydroxy 2 (4 methoxyphenyl) 4h 1 benzopyran 4 one 2 3,7-Dihydroxy-4 ′-methoxyflavone 2 4',5,6,7,8 pentahydroxyflavone 2 4′,5,6,7,8-Pentahydroxy-3- methoxyflavone 2 5,6,7,8 tetrahydroxy 2 (4 hydroxyphenyl) 3 methoxy 4h 1 benzopyran 4 one 2 5,6,7,8 tetrahydroxy 2 (4 methoxyphenyl) 4h 1 benzopyran 4 one 2 5,6,7,8 tetrahydroxy 3 methoxy 2 phenyl 4h 1 benzopyran 4 one 2 5,6,7,8-Tetrahydroxy-3-methoxyflavone 2 6 hydroxykaempferol 2 Chalcone 2 Fabaceae 2 Flavones 2 Flavonoids 2 Fungi 2 Glomus 2 Glomus intraradices 2 Leguminosae 2 Magnetic Resonance Spectroscopy Molecular Structure 2 Mycorrhizae 2 Plant Roots 2 Plant Shoots 2 Quercetin 2 Roots 2 Shoots 2 Trifolium 2 Trifolium repens 2