Digital Repository

Leaf flavonoid glycosides as chemosystematic characters in Ocimum

Show simple item record

dc.contributor.author Grayer, R.J. en_US
dc.contributor.author Kitea, G.C. en_US
dc.contributor.author Veitcha, N.C. en_US
dc.contributor.author Eckerta, M.R. en_US
dc.contributor.author Marin, P.D. en_US
dc.contributor.author Senanayake, S.P. en_US
dc.contributor.author Paton, A.J. en_US
dc.date.accessioned 2014-11-19T04:39:14Z
dc.date.available 2014-11-19T04:39:14Z
dc.date.issued 1993
dc.identifier.citation Grayer R J, Kite G C, Veitich N C, Eckert M R, Marin P D, Senanayake S P, Paton A J (2002) Leaf flavonoid glycosides as chemosystematic characters in Ocimum. Biochemical Systematics and Ecology 30; 327-342
dc.identifier.uri http://www.sciencedirect.com/science/article/pii/S030519780100103X
dc.description.abstract Abstract Thirty-one accessions of nine species belonging to three subgenera of Ocimum (basil, family Lamiaceae) were surveyed for flavonoid glycosides. Substantial infraspecific differences in flavonoid profiles of the leaves were found only in O. americanum, where var. pilosum accumulated the flavone C-glycoside, vicenin-2, which only occurred in trace amounts in var. americanum and was not detected in cv. Sacred. The major flavonoids in var. americanum and cv. Sacred, and also in all other species investigated for subgenusOcimum, were flavonol 3-O-glucosides and 3-O-rutinosides. Many species in subgenus Ocimum also produced the more unusual compound, quercetin 3-O-(6?-O-malonyl)glucoside, and small amounts of flavone O-glycosides. The level of flavonol glycosides produced was reduced significantly in glasshouse-grown plants, but levels of flavone glycosides were unaffected. A single species investigated from subgenusNautochilus, O. lamiifolium, had a different flavonoid glycoside profile, although the major compound was also a flavonol O-glycoside. This was identified as quercetin 3-O-xylosyl(1??2?)galactoside, using NMR spectroscopy. The species investigated from subgenus Gymnocimum, O. tenuiflorum (=O. sanctum), was characterised by the accumulation of flavone O-glycosides. These were isolated, and identified as the 7-O-glucuronides of luteolin and apigenin. Luteolin 5-O-glucoside was found in all nine species of Ocimumstudied, and is considered to be a key character for the genus. en_US
dc.publisher Biochemical Systematics and Ecology en_US
dc.title Leaf flavonoid glycosides as chemosystematic characters in Ocimum
dc.type Article en_US
dc.identifier.department Botany en_US


Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search Digital Repository


Browse

My Account