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Título: | Insect Antifeedant Components of Senecio fistulosus var. fistulosus—Hualtata |
Autor: | Ruiz-Vasquez, Liliana CSIC; Reina, Matías CSIC; Fajardo, Víctor; López, Matías; González-Coloma, Azucena CSIC ORCID | Palabras clave: | Senecio fistulosus Antifeedants Sesquiterpene Pyrrolizidine alkaloid Structure-activity relationships |
Fecha de publicación: | 15-jun-2019 | Editor: | Multidisciplinary Digital Publishing Institute | Citación: | Plants 8(6): 176 (2019) | Resumen: | 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, 1β,10β-epoxy-6-acetoxy-8α-hydroxy-eremofil-7(11)-en-8β,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 | Descripción: | © The Author(s). | Versión del editor: | https://doi.org/10.3390/plants8060176 | URI: | http://hdl.handle.net/10261/185054 | DOI: | 10.3390/plants8060176 | ISSN: | 2223-7747 | E-ISSN: | 2223-7747 |
Aparece en las colecciones: | (IPNA) Artículos (ICA) Artículos |
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plants-08-00176.pdf | 1,65 MB | Adobe PDF | Visualizar/Abrir |
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