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Isoswertiajaponin 2′'-O-β-arabinopyranoside and other flavone-C-glycosides from the Antarctic grass Deschampsia antarctica

Webby, Rosemary F.; Markham, Kenneth R.. 1994 Isoswertiajaponin 2′'-O-β-arabinopyranoside and other flavone-C-glycosides from the Antarctic grass Deschampsia antarctica. Phytochemistry, 36 (5). 1323-1326. 10.1016/S0031-9422(00)89660-0

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Abstract/Summary

The major flavonoid constituents of the Antarctic grass, Deschampsia antarctica, are shown to be the C-glycosylflavones, isoswertiajaponin (7-O-methylorientin) 2′'-O-β-arabinopyranoside and orientin. These are accompanied by lower levels of orientin 2′'-O-arabinopyranoside, isoswertisin (7-O-methylvitexin) 2′'-O-β-arabinopyranoside, acylated derivatives, isoswertisin, isoswertiajaponin and tricin. A preliminary study suggests that the overall level of flavonoids in Deschampsia increases during the Antarctic mid-summer.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1016/S0031-9422(00)89660-0
Programmes: BAS Programmes > Pre 2000 programme
ISSN: 00319422
Additional Keywords: Deschampsia Antarctica, Gramineae, flavone C-glycosides, isoswertiajaponin 2′'-O-β-arabinopyranoside, isoswertisin 2′'-O-β-arabinopyranoside, acylation, orientin 2′'-O-β-arabinopyranoside, light-induced variation
Date made live: 10 Aug 2017 10:04 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/517542

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