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Phytochemistry. 2004 Jul;65(14):2173-6.

Insect antifeedant compounds from Nothofagus dombeyi and N. pumilio.

Author information

1
Institut de Chimie des Substances Naturelles, CNRS, Avenue de la Terrasse, Bat. 27, F-91198, Gif-Sur-Yvette, France.

Abstract

A bioassay-guided purification of the extracts of Nothofagus dombeyi and N. pumilio leaves yielded several triterpenes and flavonoids including 2-O-acetylmaslinic acid, 3-O-acetyl 20,24,25-trihydroxydammarane, and 3,20,24,25-tetrahydroxydammarane as new natural products. All the isolated compounds were assessed for antifeeding activity against the 5th instar larvae of Ctenopsteustis obliquana. 12-Hydroxyoleanolic lactone and pectolinarigenin from N. dombeyi and dihydrooroxylin A from N. pumilio, showed significant antifeeding activity.

PMID:
15279992
DOI:
10.1016/j.phytochem.2004.04.002
[Indexed for MEDLINE]

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