Comparative phytochemistry and systematics of Anacyclus |
| |
Authors: | Harald Greger |
| |
Institution: | Botanisches Institut der Universität Wien, Renweg 14, A-1030 Wien, Austria |
| |
Abstract: | Leaf flavonoids of 13 Anacyclus taxa have been identified and compared. The most common compounds are 3-, 7- or 5-glycosylated flavonols which, together with the accumulation of 2 diosmetin 7-glycosides, help to delimitate species groups according to recent morphological and cytological findings. In addition to quercetagetin, quercetagetin 3'-methyl ether, patuletin and spinacetin have been isolated as 7-glucosides from the yellow disc and ray flowers of Anacyclus radiatus. The distribution patterns of polyacetylenes and particularly related amides, characterize different Anacyclus species and apparently contribute to a more natural interpretation of relationships with other genera, which may also be underlined by the distribution of cyanogenic glycosides. |
| |
Keywords: | Anthemideae Asteraceae (Compositae) flavonoids polyacetylenes amides cyanogenic glycosides chemosystematics |
本文献已被 ScienceDirect 等数据库收录! |
|