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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
06/08/2021 |
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Data da última atualização: |
06/08/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FRANZIN, M. L.; BOTT, J. M. C.; FADINI, M. A. M.; MELO, J. O. F.; MENDES, S. M. |
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Afiliação: |
MAYARA LOSS FRANZIN, Universidade Federal de São João del-Rei; JESSICA MAYARA COFFLER BOTT, Universidade Federal de São João del-Rei; MARCOS ANTONIO MATIELLO FADINI, Universidade Federal de São João del-Rei; JÚLIO ONÉSIO FERREIRA MELO, Universidade Federal de São João del-Rei; SIMONE MARTINS MENDES, CNPMS. |
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Título: |
Multiple infestations induce direct defense of maize to Tetranychus urticae (Acari: Tetranychidae). |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Florida Entomologist, v. 103, n. 3, p. 307-315, 2020. |
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Idioma: |
Inglês |
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Conteúdo: |
Plants present constitutive or induced defense mechanisms against herbivory. In addition, studies show that there are interactions between these different defense mechanisms when multiple species infestations occur. This study investigated the interaction between maize defensive mechanisms to control two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae) under single and double species infestations with this spider mite and fall armyworm, Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae). The experiment was carried out in a greenhouse with the following treatments: uninfested Bt (Bacillus thuringiensis Berliner; Bacillaceae) and conventional maize, single infestation with spider mite on Bt and conventional maize, and both maize types with infestations of spider mite and fall armyworm. Two d after infestation, all treatments were re-infested with spider mite. The number of eggs, immatures, and adult females (alive and dead) were recorded for re-infested populations. In addition, a leaf sample was taken from all maize plants for spectrometric analysis. There was no significant difference of biological variables of spider mite between Bt and conventional plants, as well as the ones from pre-infested and non-infested plants. The same chemical pattern of ions was observed on plants in these 4 groups. In the conventional pre-infested plants with spider mite and fall armyworm, the population of re-infested mite showed reduced survival and fertility. Defensive compounds detected were HMBOAGlc, Linoleoyl-GPI, and kaempferol rutinose. It was suggested that there is direct induced defense against spider mite in conventional maize in multiple infestations with spider mite and fall armyworm. MenosPlants present constitutive or induced defense mechanisms against herbivory. In addition, studies show that there are interactions between these different defense mechanisms when multiple species infestations occur. This study investigated the interaction between maize defensive mechanisms to control two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae) under single and double species infestations with this spider mite and fall armyworm, Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae). The experiment was carried out in a greenhouse with the following treatments: uninfested Bt (Bacillus thuringiensis Berliner; Bacillaceae) and conventional maize, single infestation with spider mite on Bt and conventional maize, and both maize types with infestations of spider mite and fall armyworm. Two d after infestation, all treatments were re-infested with spider mite. The number of eggs, immatures, and adult females (alive and dead) were recorded for re-infested populations. In addition, a leaf sample was taken from all maize plants for spectrometric analysis. There was no significant difference of biological variables of spider mite between Bt and conventional plants, as well as the ones from pre-infested and non-infested plants. The same chemical pattern of ions was observed on plants in these 4 groups. In the conventional pre-infested plants with spider mite and fall armyworm, the population of re-infested mite showed reduced survival and fertility. Defensive... Mostrar Tudo |
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Palavras-Chave: |
Defesa constitutiva; Lagarta-do-cartucho; Mecanismo de defesa; Resistência de planta. |
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Thesagro: |
Ácaro Rajado; Spodoptera Frugiperda. |
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Categoria do assunto: |
O Insetos e Entomologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/224885/1/Multiple-infestations.pdf
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Marc: |
LEADER 02470naa a2200241 a 4500
001 2133291
005 2021-08-06
008 2020 bl uuuu u00u1 u #d
100 1 $aFRANZIN, M. L.
245 $aMultiple infestations induce direct defense of maize to Tetranychus urticae (Acari$bTetranychidae).$h[electronic resource]
260 $c2020
520 $aPlants present constitutive or induced defense mechanisms against herbivory. In addition, studies show that there are interactions between these different defense mechanisms when multiple species infestations occur. This study investigated the interaction between maize defensive mechanisms to control two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae) under single and double species infestations with this spider mite and fall armyworm, Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae). The experiment was carried out in a greenhouse with the following treatments: uninfested Bt (Bacillus thuringiensis Berliner; Bacillaceae) and conventional maize, single infestation with spider mite on Bt and conventional maize, and both maize types with infestations of spider mite and fall armyworm. Two d after infestation, all treatments were re-infested with spider mite. The number of eggs, immatures, and adult females (alive and dead) were recorded for re-infested populations. In addition, a leaf sample was taken from all maize plants for spectrometric analysis. There was no significant difference of biological variables of spider mite between Bt and conventional plants, as well as the ones from pre-infested and non-infested plants. The same chemical pattern of ions was observed on plants in these 4 groups. In the conventional pre-infested plants with spider mite and fall armyworm, the population of re-infested mite showed reduced survival and fertility. Defensive compounds detected were HMBOAGlc, Linoleoyl-GPI, and kaempferol rutinose. It was suggested that there is direct induced defense against spider mite in conventional maize in multiple infestations with spider mite and fall armyworm.
650 $aÁcaro Rajado
650 $aSpodoptera Frugiperda
653 $aDefesa constitutiva
653 $aLagarta-do-cartucho
653 $aMecanismo de defesa
653 $aResistência de planta
700 1 $aBOTT, J. M. C.
700 1 $aFADINI, M. A. M.
700 1 $aMELO, J. O. F.
700 1 $aMENDES, S. M.
773 $tFlorida Entomologist$gv. 103, n. 3, p. 307-315, 2020.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
03/11/2003 |
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Data da última atualização: |
13/03/2014 |
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Autoria: |
MENDES, L. M.; SILVA, J. R. M. da; TRUGILHO, P. F.; LIMA, J. T. |
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Título: |
Técnicas corretas de secagem da madeira do eucalipto ao ar livre. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
In: IUFRO CONFERENCE ON SILVICULTURE AND IMPROVEMENT EUCALYPTS=CONFERÊNCIA IUFRO SOBRE SILVICULTURA E MELHORAMENTO DE EUCALIPTOS, 1997, Salvador. Proceedings...=Anais... Colombo: EMBRAPA-CNPF, 1997. v. 3, p. 373-380. |
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Idioma: |
Português |
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Conteúdo: |
As florestas plantadas de eucaliptos existentes no Brasil não apresentam características favoráveis quanto à qualidade da madeira para utilização como madeira serrada. Com a atual demanda no mercado nacional de madeira serrada de eucalipto, há necessidade de desenvolvimento de técnicas adequadas de processamento, desde o abate das árvores até acabamentos superficiais de produtos. A secagem é uma fase que merece atenção especial pois, se não conduzida de forma correta, leva a grandes perdas em volume de madeira serrada devido ao surgimento das rachaduras e empenamentos das peças durante o processo. No entanto, se as técnicas de secagem da madeira ao ar livre forem utilizadas de forma correta e bem controlas é suficiente para a obtenção de material de qualidade compatível ao uso pretendido, sem perdas expressivas e custos reduzidos. |
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Thesagro: |
Eucalipto; Madeira; Secagem. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01539naa a2200193 a 4500
001 1307715
005 2014-03-13
008 1997 bl uuuu u00u1 u #d
100 1 $aMENDES, L. M.
245 $aTécnicas corretas de secagem da madeira do eucalipto ao ar livre.
260 $c1997
520 $aAs florestas plantadas de eucaliptos existentes no Brasil não apresentam características favoráveis quanto à qualidade da madeira para utilização como madeira serrada. Com a atual demanda no mercado nacional de madeira serrada de eucalipto, há necessidade de desenvolvimento de técnicas adequadas de processamento, desde o abate das árvores até acabamentos superficiais de produtos. A secagem é uma fase que merece atenção especial pois, se não conduzida de forma correta, leva a grandes perdas em volume de madeira serrada devido ao surgimento das rachaduras e empenamentos das peças durante o processo. No entanto, se as técnicas de secagem da madeira ao ar livre forem utilizadas de forma correta e bem controlas é suficiente para a obtenção de material de qualidade compatível ao uso pretendido, sem perdas expressivas e custos reduzidos.
650 $aEucalipto
650 $aMadeira
650 $aSecagem
700 1 $aSILVA, J. R. M. da
700 1 $aTRUGILHO, P. F.
700 1 $aLIMA, J. T.
773 $tIn: IUFRO CONFERENCE ON SILVICULTURE AND IMPROVEMENT EUCALYPTS=CONFERÊNCIA IUFRO SOBRE SILVICULTURA E MELHORAMENTO DE EUCALIPTOS, 1997, Salvador. Proceedings...=Anais... Colombo: EMBRAPA-CNPF, 1997.$gv. 3, p. 373-380.
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