1. Distribution of quinolizidine alkaloid types in nine Ormosia species (Leguminosae-Papilionoideae)
- Author
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Ricker, Martin, Daly, Douglas C., Eugene, Gerhard Veen, Robbins, F., Sinta V., Miguel, Chota I., Jomber, Czygan, Franz-C., and Kinghorn, A. Douglas
- Abstract
Quinolizidine alkaloids were surveyed in 22 plant samples, representing nineOrmosiaspecies and up to five different plant parts per species, using combined gas chromatography and mass spectroscopy. The detected alkaloids were classified into 40 structural types. There was a remarkable degree of dissimilarity of alkaloid-type profiles between any two plant samples, including those obtained from the same species and even from a single tree. The similarity of alkaloid-type profiles among the studied samples varied between 0% and 79% (Jaccard similarity coefficient). Of chemotaxonomic interest was the finding of acosmine inO. isthmensis, which previously had been reported only from the related genusAcosmium. Furthermore, the alkaloid-type profile ofO. panamensisseeds was distinct from that of all other samples, supporting the hypothesis that this species is only distantly related to the other Latin AmericanOrmosiaspecies.
- Published
- 1999
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