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No. de sistema: 000002375

LDR _ _ 00000nab^^22^^^^^za^4500
008 _ _ 090527m20079999xx^br^p^^^^^^z0^^^a0eng^d
040 _ _ a| ECO
c| ECO
043 _ _ a| n-mx-ja
044 _ _ a| xx
245 0 0 a| Electrophysiological and behavioural responses of Scyphophorus acupunctatus (Col., Curculionidae) to Agave tequilana volatiles
520 1 _ a| The weevil Scyphophorus acupunctatus Gyllenhal (Col., Curculionidae) is the most important insect pest of cultivated agaves in Mexico. The objective of this study was to search for potential attractants for this weevil species from the freshly cut fleshy leaves of healthy Agave tequilana Weber var. Blue plants. Combined gas chromatography-electroantennography (GC-EAD) analysis of A. tequilana volatile extracts showed that seven peaks elicited antennal responses from males and females. Five of these peaks were identified by gas chromatography-mass spectrometry (GC-MS) as o-xylene, α-pinene, 3-carene, γ-terpinene and linalool. Electroantennogram (EAG) records of both sexes to 1-, 10- and 100-μg-stimulus load of these five compounds showed that there was a dose effect on the EAG responses for linalool, 3-carene and α-pinene, but not for γ-terpinene and o-xylene. There were no sexual differences between male and female EAG responses to any of the compounds tested. Y-tube olfactometer bioassays of the compounds showed that males and females were attracted to α-pinene, 3-carene, γ-terpinene and/or linalool at doses of 1 and 10 μg, while weevils were repelled by linalool at a dose of 100 μg.
538 _ _ a| Adobe Acrobat profesional 6.0 o superior
650 _ 4 a| Picudo del agave
650 _ 4 a| Agave
650 _ 4 a| Atrayentes sexuales
650 _ 4 a| Semioquímicos
650 _ 4 a| Control de plagas
651 _ 4 a| Tequila (Jalisco, México)
700 1 _ a| Altuzar, A.
700 1 _ a| Malo Rivera, Edi Álvaro
c| Doctor
e| coaut.
700 1 _ a| González Hernández, Héctor
c| Doctor
e| coaut.
700 1 _ a| Rojas, Julio C.
e| coaut.
773 0 _
t| Journal of Applied Entomology
g| Vol. 131, no. 2 (Feb. 2007), p. 121-127
x| 0931-2048
900 _ _ a| En hemeroteca, SIBE-Tapachula
901 _ _ a| Artículo con arbitraje
902 _ _ a| GOG / MM
904 _ _ a| Mayo 2009
905 _ _ a| Artecosur
905 _ _ a| Biblioelectrónica
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*En hemeroteca, SIBE-Tapachula
Electrophysiological and behavioural responses of Scyphophorus acupunctatus (Col., Curculionidae) to Agave tequilana volatiles
Altuzar, A. (autor)
Malo Rivera, Edi Álvaro (autor)
González Hernández, Héctor (autor)
Rojas, Julio C. (autor)
Contenido en: Journal of Applied Entomology. Vol. 131, no. 2 (Feb. 2007), p. 121-127. ISSN: 0931-2048
Bibliotecas:
Tapachula
No. de sistema: 2375
Tipo: - Artículo con arbitraje
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Inglés

"The weevil Scyphophorus acupunctatus Gyllenhal (Col., Curculionidae) is the most important insect pest of cultivated agaves in Mexico. The objective of this study was to search for potential attractants for this weevil species from the freshly cut fleshy leaves of healthy Agave tequilana Weber var. Blue plants. Combined gas chromatography-electroantennography (GC-EAD) analysis of A. tequilana volatile extracts showed that seven peaks elicited antennal responses from males and females. Five of these peaks were identified by gas chromatography-mass spectrometry (GC-MS) as o-xylene, α-pinene, 3-carene, γ-terpinene and linalool. Electroantennogram (EAG) records of both sexes to 1-, 10- and 100-μg-stimulus load of these five compounds showed that there was a dose effect on the EAG responses for linalool, 3-carene and α-pinene, but not for γ-terpinene and o-xylene. There were no sexual differences between male and female EAG responses to any of the compounds tested. Y-tube olfactometer bioassays of the compounds showed that males and females were attracted to α-pinene, 3-carene, γ-terpinene and/or linalool at doses of 1 and 10 μg, while weevils were repelled by linalool at a dose of 100 μg."

SIBE Tapachula
Codigo de barra
Estado
Colección
2474-20
(Disponible)
Artículos de investigación ECOSUR

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