|
|||||
|
|
Glycosides of tricetin methyl ethers as chemosystematic markers in Stachys subgenus Betonica |
|
| Authors: | Marin Petar D Grayer Renée J Grujic-Jovanovic Slavica Kite Geoffrey C Veitch Nigel C |
| Institution: | Jodrell Laboratory, Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3AB, UK. |
| Abstract: | 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-beta-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. |
| Keywords: | Stachys Betonica Lamiaceae Flavonoid glycosides Tricetin 3′ 4′ 5′-trimethyl ether 7-O-β-glucopyranoside Tricetin derivatives Chemosystematics |
| 本文献已被 ScienceDirect PubMed 等数据库收录！ | |