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No. de sistema: 000034916

LDR _ _ 00000nab^^22^^^^^za^4500
008 _ _ 190812m20199999xx^^r^p^o^^^^z0^^^a0eng^d
040 _ _ a| ECO
c| ECO
043 _ _ a| n-mx-cp
044 _ _ a| xx
245 0 0 a| Herbivore-induced volatiles from maize plants attract Chelonus insularis, an egg-larval parasitoid of the fall armyworm
506 _ _ a| Disponible para usuarios de ECOSUR con su clave de acceso
520 1 _ a| Chelonus insularis (Hymenoptera: Braconidae) is an egg-larval endoparasitoid that attacks several lepidopteran species, including the fall armyworm (FAW), Spodoptera frugiperda, as one of its main hosts. In this study, we identified the volatiles emitted by maize plants undamaged and damaged by S. frugiperda larvae that were attractive to virgin C. insularis females. In a Y-glass tube olfactometer, parasitoid females were more attracted to activated charcoal extracts than Porapak Q maize extracts. Chemical analysis of activated charcoal extracts from maize plants damaged by S. frugiperda larvae by gas chromatography coupled with electroantennography (GC-EAD) showed that the antennae of virgin female wasps consistently responded to three compounds, identified by gas chromatography-mass spectrometry (GC-MS) as α-pinene, α-longipinene and α-copaene. These compounds are constitutively released by maize plants but induction via herbivory affects their emissions. α-Longipinene and α-copaene were more abundant in damaged maize plants than in healthy ones, whereas α-pinene was produced in higher amounts in healthy maize plants than in damaged ones. Female parasitoids were not attracted to EAD-active compounds when evaluated singly; however, they were attracted to the binary blend α-pinene + α-copaene, which was the most attractive blend, even more attractive than the tertiary blend (α-pinene + α-longipinene + α-copaene) and the damaged maize plant extracts. We conclude that C. insularis is attracted to a blend of herbivore-induced volatiles emitted by maize plants.
533 _ _ a| Reproducción electrónica en formato PDF
538 _ _ a| Adobe Acrobat profesional 6.0 o superior
650 _ 4 a| Spodoptera frugiperda
650 _ 4 a| Lepidópteros
650 _ 4 a| Maíz
650 _ 4 a| Compuestos volátiles
650 _ 4 a| Parasitoides
650 _ 4 a| Chelonus insularis
650 _ 4 a| Interacciones tritróficas
651 _ 4 a| Joaquín Miguel Gutiérrez (El Manzano), Tapachula (Chiapas, México)
700 1 _ a| Ortiz Carreón, Fabián Rubén
e| autor
700 1 _ a| Rojas, Julio C.
e| autor
700 1 _ a| Cisneros Hernández, Juan
e| autor
700 1 _ a| Malo Rivera, Edi Álvaro
c| Doctor
e| autor
773 0 _
t| Journal of Chemical Ecology
g| Vol. 45, no. 3 (March 2019), p. 326-337
x| 1573-1561
900 _ _ a| Solicítelo con su bibliotecario/a
901 _ _ a| Artículo con arbitraje
902 _ _ a| GOG / MM
904 _ _ a| Agosto 2019
905 _ _ a| Artecosur
905 _ _ a| Artfrosur
905 _ _ a| Biblioelectrónica
906 _ _ a| Producción Académica ECOSUR
LNG eng
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Herbivore-induced volatiles from maize plants attract Chelonus insularis, an egg-larval parasitoid of the fall armyworm
Ortiz Carreón, Fabián Rubén (autor)
Rojas, Julio C. (autor)
Cisneros Hernández, Juan (autor)
Malo Rivera, Edi Álvaro (autor)
Nota: Disponible para usuarios de ECOSUR con su clave de acceso
Contenido en: Journal of Chemical Ecology. Vol. 45, no. 3 (March 2019), p. 326-337. ISSN: 1573-1561
No. de sistema: 34916
Tipo: - Artículo con arbitraje
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Inglés

"Chelonus insularis (Hymenoptera: Braconidae) is an egg-larval endoparasitoid that attacks several lepidopteran species, including the fall armyworm (FAW), Spodoptera frugiperda, as one of its main hosts. In this study, we identified the volatiles emitted by maize plants undamaged and damaged by S. frugiperda larvae that were attractive to virgin C. insularis females. In a Y-glass tube olfactometer, parasitoid females were more attracted to activated charcoal extracts than Porapak Q maize extracts. Chemical analysis of activated charcoal extracts from maize plants damaged by S. frugiperda larvae by gas chromatography coupled with electroantennography (GC-EAD) showed that the antennae of virgin female wasps consistently responded to three compounds, identified by gas chromatography-mass spectrometry (GC-MS) as α-pinene, α-longipinene and α-copaene. These compounds are constitutively released by maize plants but induction via herbivory affects their emissions. α-Longipinene and α-copaene were more abundant in damaged maize plants than in healthy ones, whereas α-pinene was produced in higher amounts in healthy maize plants than in damaged ones. Female parasitoids were not attracted to EAD-active compounds when evaluated singly; however, they were attracted to the binary blend α-pinene + α-copaene, which was the most attractive blend, even more attractive than the tertiary blend (α-pinene + α-longipinene + α-copaene) and the damaged maize plant extracts. We conclude that C. insularis is attracted to a blend of herbivore-induced volatiles emitted by maize plants."


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