info:eu-repo/semantics/article
Lethal and Sublethal Effects of Withanolides from Salpichroa origanifolia and Analogues on Ceratitis capitata
Fecha
2004-05Registro en:
Bado, Silvina; Mareggiani, Graciela Silvia; Amiano, Nicolás Oscar; Burton, Gerardo; Veleiro, Adriana Silvia; Lethal and Sublethal Effects of Withanolides from Salpichroa origanifolia and Analogues on Ceratitis capitata; American Chemical Society; Journal of Agricultural and Food Chemistry; 52; 10; 5-2004; 2875-2878
0021-8561
CONICET Digital
CONICET
Autor
Bado, Silvina
Mareggiani, Graciela Silvia
Amiano, Nicolás Oscar
Burton, Gerardo
Veleiro, Adriana Silvia
Resumen
Biological effects on Ceratitis capitata were evaluated for several withanolides isolated from Salpichroa origanifolia (Solanaceae), (20S,22R,24S,25S,26R)-5α,6α:22,26:24, 25-triepoxy-26-hydroxy-17(13→18)-abeo-ergosta-2,13,15,17-tetraen-1-one (salpichrolide A, 1), (20S,22R,24S,25S,26R)-22,26:24,25-diepoxy-5α,6β ,26-trihydroxy-17(13→18)-abeo-ergosta-2,13,15,17-tetraen-1-one (salpichrolide C, 2), (20S,22R,24S,25S,26R)-5α,6α; 22,26:24,25-triepoxy-15,26-dihydroxy-17(13→18)abeo-ergosta-2,13,15, 17-tetraen-1-one (salpichrolide G, 3), and (20S,22R,24S,25S,26R)-5α ,6α:22,26:24,25-triepoxy-1,26-dihydroxy-17(13→18)-abeo-ergosta-2,13, 15,17-tetraene (salpichrolide B, 5), and for chemically modified analogues. Influence of chemical modifications on development delay was analyzed. The compounds were incorporated into the larval diet and the adults' drinking water. Significant development delays from larvae to puparia were observed in treatments with the natural withanolides salpichrolides A, C, and G (1-3) at a concentration of 500 ppm. Salpichrolide B (5) was the most toxic compound, the highest mortality (95%) being observed at the larval stage. Exposure of adults to drinking water containing natural withanolides 1-3 and 5 produced mortality in all cases.