Taxonomic significance of flavonoid variation in temperate species of Nothofagus

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• 作者：Wollenweber ; Eckhard ; Stevens ; Jan F. ; Dö ; rr ; Marion ; Rozefelds ; Andrew C.
• 关键词：Nothofagus ; Fagaceae ; Lipophilic leaf exudates ; Flavonoids ; Stilbene ; Mass spectrometry ; Chemotaxonomy
• 刊名：Phytochemistry
• 出版年：2003
• 出版时间：April, 2003
• 年：2003
• 卷：62
• 期：7
• 页码：1125-1131
• 全文大小：190 K

文摘

Forty-two flavonoids and a stilbene (pinosylvin) were identified in the leaf exudates of 11 temperate species of Nothofagus from South America, Australia and New Zealand. The flavonoid profiles demonstrate significant taxonomic value at the subgeneric level. Most species of subgenus Fuscospora are characterized by the presence of pinosylvin, galangin and galangin methyl ethers. Kaempferol-type flavonols are abundant in subgenus Lophozonia while these flavonols are largely absent from species of subgenus Fuscospora. The flavonoid patterns are largely in agreement with a recent subgeneric classification of Nothofagus.