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Registro Completo |
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
15/03/2022 |
Data da última atualização: |
22/03/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
NASCIMENTO, P. T.; FADINI, M. A. M.; ROCHA, M S.; SOUZA, C. S. F.; BARROS, B. de A.; MELO, J. O. F.; VON PINHO, R. G.; VALICENTE, F. H. |
Afiliação: |
Universidade Federal de Lavras; Universidade Federal de São João del-Rei; Universidade Federal de São João del-Rei; Universidade Federal de Lavras; BEATRIZ DE ALMEIDA BARROS, CNPMS; Universidade Federal de São João del-Rei; Universidade Federal de Lavras; FERNANDO HERCOS VALICENTE, CNPMS. |
Título: |
Olfactory response of Trichogramma pretiosum (Hymenoptera: Trichogrammatidae) to volatiles induced by transgenic maize. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Bulletin of Entomological Research, v. 111, p. 674-687, 2021. |
DOI: |
https://doi.org/10.1017/S0007485321000341 |
Idioma: |
Inglês |
Conteúdo: |
Plants not only respond to herbivorous damage but adjust their defense system afteregg deposition by pest insects. Thereby, parasitoids use oviposition-induced plant volatiles to locate their hosts. We investigated the olfactory behavioral responses of Trichogramma pretiosum Riley, 1879 (Hymenoptera: Trichogrammatidae) to volatile blends emitted by maize (Zea mays L.) with singular and stacked events after oviposition by Spodoptera frugiperda Smith, 1797 (Hymenoptera: Trichogrammatidae) moths. Additionally, we examined possible variations in gene expression and on oviposition-induced volatiles. We used a Y-tube olfactometer to test for the wasp responses to volatiles released by maize plants oviposited by S. frugiperda and not-oviposited plants. Using the real-time PCR technique (qRT-PCR), we analyzed the expression of lipoxygenase and three terpene synthases genes, which are enzymes involved in the synthesis of volatile compounds that attract parasitoids of S. frugiperda. Olfactometer tests showed that T. pretiosum is strongly attracted by volatiles from transgenic maize emitted by S. frugiperda oviposition (VTPRO 3, more than 75% individuals were attracted). The relative expression of genes TPS10, LOX e STC was higher in transgenic hybrids than in the conventional (isogenic line) hybrids. The GC-MS analysis revealed that some volatile compounds are released exclusively by transgenic maize. This study provides evidence that transgenic hybrids enhanced chemical cues under oviposition-induction and helped to increase T. pretiosum efficiency in S. frugiperda control. This finding shows that among the evaluated hybrids, genetically modified hybrids can improve the biological control programs, since they potentialize the egg parasitoid foraging, integrating pest management. MenosPlants not only respond to herbivorous damage but adjust their defense system afteregg deposition by pest insects. Thereby, parasitoids use oviposition-induced plant volatiles to locate their hosts. We investigated the olfactory behavioral responses of Trichogramma pretiosum Riley, 1879 (Hymenoptera: Trichogrammatidae) to volatile blends emitted by maize (Zea mays L.) with singular and stacked events after oviposition by Spodoptera frugiperda Smith, 1797 (Hymenoptera: Trichogrammatidae) moths. Additionally, we examined possible variations in gene expression and on oviposition-induced volatiles. We used a Y-tube olfactometer to test for the wasp responses to volatiles released by maize plants oviposited by S. frugiperda and not-oviposited plants. Using the real-time PCR technique (qRT-PCR), we analyzed the expression of lipoxygenase and three terpene synthases genes, which are enzymes involved in the synthesis of volatile compounds that attract parasitoids of S. frugiperda. Olfactometer tests showed that T. pretiosum is strongly attracted by volatiles from transgenic maize emitted by S. frugiperda oviposition (VTPRO 3, more than 75% individuals were attracted). The relative expression of genes TPS10, LOX e STC was higher in transgenic hybrids than in the conventional (isogenic line) hybrids. The GC-MS analysis revealed that some volatile compounds are released exclusively by transgenic maize. This study provides evidence that transgenic hybrids enhanced chemical cues under ov... Mostrar Tudo |
Palavras-Chave: |
Egg parasitoid; Empilhamento de características; Genetic manipulation; Interação tritrófica; Manipulação genética; Parasitóide de ovo; QRT-PCR; Trait stacking; Tritrophic interaction. |
Thesagro: |
Inseto Para Controle Biológico; Milho; Planta Transgênica; Trichogramma sp. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 02982naa a2200373 a 4500 001 2140915 005 2023-03-22 008 2021 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1017/S0007485321000341$2DOI 100 1 $aNASCIMENTO, P. T. 245 $aOlfactory response of Trichogramma pretiosum (Hymenoptera$bTrichogrammatidae) to volatiles induced by transgenic maize.$h[electronic resource] 260 $c2021 520 $aPlants not only respond to herbivorous damage but adjust their defense system afteregg deposition by pest insects. Thereby, parasitoids use oviposition-induced plant volatiles to locate their hosts. We investigated the olfactory behavioral responses of Trichogramma pretiosum Riley, 1879 (Hymenoptera: Trichogrammatidae) to volatile blends emitted by maize (Zea mays L.) with singular and stacked events after oviposition by Spodoptera frugiperda Smith, 1797 (Hymenoptera: Trichogrammatidae) moths. Additionally, we examined possible variations in gene expression and on oviposition-induced volatiles. We used a Y-tube olfactometer to test for the wasp responses to volatiles released by maize plants oviposited by S. frugiperda and not-oviposited plants. Using the real-time PCR technique (qRT-PCR), we analyzed the expression of lipoxygenase and three terpene synthases genes, which are enzymes involved in the synthesis of volatile compounds that attract parasitoids of S. frugiperda. Olfactometer tests showed that T. pretiosum is strongly attracted by volatiles from transgenic maize emitted by S. frugiperda oviposition (VTPRO 3, more than 75% individuals were attracted). The relative expression of genes TPS10, LOX e STC was higher in transgenic hybrids than in the conventional (isogenic line) hybrids. The GC-MS analysis revealed that some volatile compounds are released exclusively by transgenic maize. This study provides evidence that transgenic hybrids enhanced chemical cues under oviposition-induction and helped to increase T. pretiosum efficiency in S. frugiperda control. This finding shows that among the evaluated hybrids, genetically modified hybrids can improve the biological control programs, since they potentialize the egg parasitoid foraging, integrating pest management. 650 $aInseto Para Controle Biológico 650 $aMilho 650 $aPlanta Transgênica 650 $aTrichogramma sp 653 $aEgg parasitoid 653 $aEmpilhamento de características 653 $aGenetic manipulation 653 $aInteração tritrófica 653 $aManipulação genética 653 $aParasitóide de ovo 653 $aQRT-PCR 653 $aTrait stacking 653 $aTritrophic interaction 700 1 $aFADINI, M. A. M. 700 1 $aROCHA, M S. 700 1 $aSOUZA, C. S. F. 700 1 $aBARROS, B. de A. 700 1 $aMELO, J. O. F. 700 1 $aVON PINHO, R. G. 700 1 $aVALICENTE, F. H. 773 $tBulletin of Entomological Research$gv. 111, p. 674-687, 2021.
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Embrapa Milho e Sorgo (CNPMS) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
16/07/2008 |
Data da última atualização: |
16/07/2008 |
Tipo da produção científica: |
Artigo de Divulgação na Mídia |
Autoria: |
BARIONI, L. G.; AGUIAR, L. M. de S. |
Afiliação: |
Luis Gustavo Barioni, CPAC; Ludmilla Moura de Souza Aguiar, CPAC. |
Título: |
A diversificação dos sistemas de produção de bovinos: produção econômica e conservação ambiental. |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
In: GAMA, L. C. (Org.). Artigos publicados na mídia: coletânea 2007. [Planaltina, DF: s.n.], 2007. |
Idioma: |
Português |
Notas: |
Publicado no Agrosoft Brasil em 17 dez. 2007. |
Thesagro: |
Gado de Corte; Impacto Ambiental; Pecuária. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00602naa a2200169 a 4500 001 1570833 005 2008-07-16 008 2007 bl uuuu u00u1 u #d 100 1 $aBARIONI, L. G. 245 $aA diversificação dos sistemas de produção de bovinos$bprodução econômica e conservação ambiental. 260 $c2007 500 $aPublicado no Agrosoft Brasil em 17 dez. 2007. 650 $aGado de Corte 650 $aImpacto Ambiental 650 $aPecuária 700 1 $aAGUIAR, L. M. de S. 773 $tIn: GAMA, L. C. (Org.). Artigos publicados na mídia: coletânea 2007. [Planaltina, DF: s.n.], 2007.
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