EXTENDED FLAVONOID BIOSYNTHETIC CAPABILITY IN THE AQUATIC FERN GENUS PILULARIA

Article abstract of DOI:10.1016/0031-9422(88)80645-9

The marsileaceous fern, Pilularia globulifera is shown to accumulate the following quercetin glycosides: 3-glucoside, 3-rhamnoside, 3-xyloside, 3-arabinopyranoside, 3-arabinofuranoside and 3,7-di-rhamnoside.Kaempferol 3-glucoside is also present and kaempferol 3,7-dirhamnoside is the major component. 7-O-Glycosylation has not been observed previously in the marsileaceae.Amendments are proposed to structure assignments in previous work on P. americana.Key Word index - Pilularia globulifera; P. americana; Marsileaceae; fern; flavonol glycosides; 7-O-glycosylation.