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Exudate flavones and flavanones in Origanum species and their interspecific variation

Skoula, M., Grayer, R. J., Kite, G. C. and Veitch, N. C. (2008) Exudate flavones and flavanones in Origanum species and their interspecific variation. Biochemical Systematics and Ecology, 36 (8). pp. 646-654. ISSN 0305-1978

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To link to this item DOI: 10.1016/j.bse.2008.05.003

Abstract/Summary

Surface flavonoids in nine species of Origanum, representing taxa from all three of the currently recognised subgeneric groups, were examined both by HPLC coupled to diode-array detection and APCI-MS. Many of the flavonoids present were characterised by O-substituent at C-6 (OH, OMe) and/or C-8 (OMe). In total, 25 flavones and flavanones are described in this study, of which 13 are new to the genus and 5,4'-dihydroxy-6,7,3'-trimethoxyflavanone is reported for the first time. Taxa in subgeneric Group A accumulated flavonoids with methoxyl groups at both C-6 and C-4'; however, taxa in subgeneric Group B did not accumulate 4'-methoxylated compounds, and taxa in Group C did not accumulate 6-methoxylated compounds. (C) 2008 Elsevier Ltd. All rights reserved.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Biological Sciences
ID Code:9892
Uncontrolled Keywords:Lamiaceae, Origanum, flavones, flavanones, dihydroflavonols, 5,4, '-dihydroxy-6,7,3 '-trimethoxyflavanone, chemotaxonomy, GLANDULAR HAIRS, OREGANO, AGLYCONES, LABIATAE, OCIMUM

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