Insect Antifeedant Components of Senecio fistulosus var. fistulosus—Hualtata
| Autor: | Matías Reina, Matías López, Víctor Fajardo, Liliana Ruiz-Vásquez, Azucena González-Coloma |
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| Přispěvatelé: | Ministerio de Economía y Competitividad (España), European Commission, Universidad de Magallanes (Chile) |
| Rok vydání: | 2019 |
| Předmět: |
Sesquiterpene
sesquiterpene Pyrrolizidine alkaloid Structure-activity relationships Plant Science 01 natural sciences chemistry.chemical_compound Rhopalosiphum padi Senecio fistulosus Spodoptera littoralis pyrrolizidine alkaloid Ecology Evolution Behavior and Systematics Ecology biology Traditional medicine antifeedant 010405 organic chemistry structure-activity relationships Botany biology.organism_classification 0104 chemical sciences 010404 medicinal & biomolecular chemistry chemistry Phytochemical QK1-989 Antifeedants Pyrrolizidine Myzus persicae |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname Plants Volume 8 Issue 6 Plants, Vol 8, Iss 6, p 176 (2019) |
| Popis: | From a bioactive methanolic extract of Senecio fistulosus, the antifeedant effects of the alkaloidal and non-alkaloidal fractions were tested against the insects Spodoptera littoralis, Myzus persicae and Rhopalosiphum padi, with the non-alkaloidal fraction being antifeedant. The phytochemical study of the non-alkaloidal fraction of S. fistulosus, resulted in the isolation of four compounds, two 9-oxo-furanoeremophilanes (1, 2), an eremophilanolide, 1&beta 10&beta epoxy-6-acetoxy-8&alpha hydroxy-eremofil-7(11)-en-8&beta 12-olide (3) and a maaliol derivative (4). The alkaloidal fraction yielded two known pyrrolizidine alkaloids (5, 6). Compounds 1, 3 and 4 are new natural products. Furanoeremophilane 2 was a strong antifeedant against S. littoralis and maaliane 4 inhibited the settling of M. persicae. |
| Databáze: | OpenAIRE |
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