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Antifungal stilbenoids from Stemona collinsae.
T Pacher1, C Seger, D Engelmeier
1Comparative and Ecological Phytochemistry Department, Institute of Botany, University of Vienna, Rennweg 14, A-1030 Wien, Austria.
Journal of Natural Products
|June 29, 2002
Summary
Researchers identified 15 new stilbenoids from Stemona collinsae roots, showing broad antifungal activity. These natural compounds, including phenylbenzofurans and dihydrostilbenes, offer potential for new antifungal treatments.
Area of Science:
- Natural Product Chemistry
- Mycology
- Pharmacognosy
Background:
- Stemona collinsae roots are a rich source of diverse natural products.
- Stilbenoids represent a class of compounds with known biological activities, including antifungal properties.
Purpose of the Study:
- To isolate and characterize novel stilbenoids from Stemona collinsae.
- To evaluate the antifungal activity of isolated stilbenoids against various microfungi.
Main Methods:
- Methanolic extraction of Stemona collinsae roots.
- Isolation and structural elucidation of compounds using spectroscopic methods.
- Bioautographic assays and microdilution techniques for antifungal activity testing.
Main Results:
- Fifteen new stilbenoids (11 phenylbenzofurans, 4 dihydrostilbenes) were identified.
- Antifungal activity was observed for all tested stilbenoid structural types against Cladosporium herbarum.
- Ten derivatives showed activity against five microfungi, assessed via digital image analysis of germ tubes.
Conclusions:
- Stemona collinsae is a valuable source of novel antifungal stilbenoids.
- The identified compounds, including stemofurans and stilbostemins, demonstrate significant potential for antifungal applications.
- Further investigation into these natural products could lead to the development of new antifungal agents.