Artículo
Effect of volatile organic compounds on stored pest: Fusarium verticillioides, its mycotoxin fumonisin B1 and the insect pest vector Sitophilus zeamais
Zunino, María Paula
; Herrera, Jimena María
; Rubinstein, Héctor Ramón; Pizzolitto, Romina Paola
; Zygadlo, Julio Alberto
; Dambolena, José Sebastián
Fecha de publicación:
09/2015
Editorial:
American Chemical Society
Revista:
Journal of Agricultural and Food Chemistry
ISSN:
0021-8561
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
New agronomic practices and technology enabled Argentina a larger production of cereal grains, reaching a harvest yield of 26.5 million metric tons of maize, of which, about 40% was exported. However, much of the maize production is lost annually by the attack of fungi and insects (2.6 million tons). In this study, the antifungal effect of selected volatiles on Fusarium verticillioides, its mycotoxin production, and the repellent and insecticidal activities against the weevill Sithophilus zeamais, an insect vector of F. verticillioides, were evaluated. The compounds tested were (2E)-2-hexenal, (2E)-2-nonenal, (2E,6Z)-2,6-nonadienal, 1-pentanol, 1-hexanol, 1-butanol, 3-methyl-1-butanol, pentanal, 2-decanone, and 3-decanone, which occur in the blend of volatile compounds emitted by various cereal grains. The most active antifungals were the aldehydes (2E)-2-nonenal, (2E)-2-hexenal, and (2E,6Z)-2,6-nonadienal (minimum inhibitory concentration values of <0.03, 0.06, and 0.06 mM, respectively). The occurrence of fumonisin B1 also was prevented because these compounds completely inhibited fungal growth. The best insecticidal fumigant activities against the maize weevil were shown by 2-decanone and 3-decanone (lethal concentration ≤ 54.6 μL/L (<0.28 mM)). Although, all tested compounds showed repellent activity against S. zeamais at a concentration of 4 μL/L, (2E,6Z)-2,6-nonadienal was the most active repellent compound. These results demonstrate the potential of (2E,6Z)-2,6-nonadienal to be used as a natural alternative to synthetic pesticides on F. verticillioides and S. zeamais.
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Articulos(IMBIV)
Articulos de INST.MULTIDISCIPL.DE BIOLOGIA VEGETAL (P)
Articulos de INST.MULTIDISCIPL.DE BIOLOGIA VEGETAL (P)
Citación
Zunino, María Paula; Herrera, Jimena María; Rubinstein, Héctor Ramón; Pizzolitto, Romina Paola; Zygadlo, Julio Alberto; et al.; Effect of volatile organic compounds on stored pest: Fusarium verticillioides, its mycotoxin fumonisin B1 and the insect pest vector Sitophilus zeamais; American Chemical Society; Journal of Agricultural and Food Chemistry; 63; 35; 9-2015; 7743-7749
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