Flavonoid evidence and the classification of the anarthriaceae within the poales

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• 作者：Williams ; Christine A. ; Harborne ; Jeffrey B. ; Greenham ; Jenny ; Briggs ; Barbara G. ; Johnson ; Lawrence A.S.
• 关键词：Anarthria ; Anarthriaceae ; Georgiella ; Ecdeiocolea ; Ecdeiocoleaceae ; Lyginia ; Hopkinsia ; Restionaceae ; Poales ; flavonols ; flavonol 5-methyl ethers ; chemotaxonomy
• 刊名：Phytochemistry
• 出版年：1997
• 出版时间：July, 1997
• 年：1997
• 卷：45
• 期：6
• 页码：1189-1196
• 全文大小：639 K

文摘

A survey of the flavonoids of all seven known species of Anarthria showed the regular presence of myricetin, quercetin and isorhamnetin and traces of kaempferol. Quercetin 5,4′-dimethyl ether was uniquely present in Anarthria laevis, while quercetin 3-methyl ether occurred in A. gracilis. Proanthocyanidins were detected in two species and tricin in A. polyphylla. The flavonols largely occurred as 3-glycosides, but some unknown conjugates were also found to be characteristic of the genus. Two related taxa in the Ecdeiocoleaceae could be separated by the fact that they only produced quercetin and isorhamnetin. These results were compared with the flavonoid patterns of the Restionaceae sensu latu and support the view derived from chloroplast DNA data that Anarthriaceae diverged early from the Restionaceae and that Ecdeocoleaceae is a sister group.