Glycosides of tricetin methyl ethers as chemosystematic markers in Stachys subgenus Betonica

A flavonoid survey within the genus Stachys revealed that glycosides of methyl ethers of tricetin were restricted to species in subgenus Betonica. The new derivative tricetin 3 ′,4 ′,5 ′-trimethyl ether 7- O-β-glucopyranoside was obtained from Stachys scardica. Nine species from the genus Stachys L....

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Bibliographic Details
Published in:Phytochemistry (Oxford) 2004-05, Vol.65 (9), p.1247-1253
Main Authors: Marin, Petar D., Grayer, Renée J., Grujic-Jovanovic, Slavica, Kite, Geoffrey C., Veitch, Nigel C.
Format: Article
Language:English
Subjects:
Betonica
Biological and medical sciences
biomarkers
Chemical constitution
chemical structure
Chemosystematics
chemotaxonomy
Chromatography, High Pressure Liquid - methods
Chromones - chemistry
Chromones - isolation & purification
ethers
Ethers - chemistry
Ethers - isolation & purification
Flavonoid glycosides
flavonoids
Flavonoids - chemistry
Flavonoids - isolation & purification
Fundamental and applied biological sciences. Psychology
glycosides
Glycosides - chemistry
Glycosides - genetics
Glycosides - isolation & purification
herbs
Lamiaceae
Mass Spectrometry - methods
Molecular Structure
Nuclear Magnetic Resonance, Biomolecular
phytochemicals
plant extracts
Plant physiology and development
Species Specificity
spectral analysis
Spectrophotometry, Ultraviolet
Stachys
Stachys - chemistry
Stachys - classification
Stachys - genetics
Tricetin 3 ′,4 ′,5 ′-trimethyl ether 7- O-β-glucopyranoside
Tricetin derivatives
tricetin methyl ethers
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Summary:A flavonoid survey within the genus Stachys revealed that glycosides of methyl ethers of tricetin were restricted to species in subgenus Betonica. The new derivative tricetin 3 ′,4 ′,5 ′-trimethyl ether 7- O-β-glucopyranoside was obtained from Stachys scardica. Nine species from the genus Stachys L. representing subgenera Stachys and Betonica were surveyed for flavonoid glycosides by means of HPLC coupled to diode-array detection and LC-APCI-MS. Those species belonging to subgenus Betonica were characterised by the presence of glycosides of tricetin methyl ethers, including a new derivative, which was isolated from S. scardica Griseb. and identified as tricetin 3 ′,4 ′,5 ′-trimethyl ether 7- O-β-glucopyranoside by spectroscopic methods. This type of flavonoid was absent from species belonging to subgenus Stachys and can be considered as a chemosystematic marker for subgenus Betonica.
ISSN:0031-9422
1873-3700
DOI:10.1016/j.phytochem.2004.04.014