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Registro Completo |
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Biblioteca(s): |
Embrapa Algodão. |
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Data corrente: |
09/02/2022 |
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Data da última atualização: |
12/02/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PACHÚ, J. K. S.; MACHEDO, F. C. O.; MALAQUIAS, J. P.; RAMALHO, F. de S.; OLIVEIRA, R. F.; FRANCO, F. P.; GODOY, W. A. C. |
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Afiliação: |
JÉSSICA K. S. PACHÚ, ESALQ; FRANCYNES C. O. MACEDO, ESALQ; JOSÉ P. MALAQUIAS, UNESP; FRANCISCO DE SOUSA RAMALHO, CNPA; RICARDO F. OLIVEIRA, ESALQ; FLÁVIA PEREIRA FRANCO, ESALQ; WESLEY A. C. GODOY, ESALQ. |
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Título: |
Electrical signalling on Bt and non-Bt cotton plants under stress by Aphis gossypii. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
PLoS ONE, v. 16, n. 4, e0249699, p. 1-15, 2021. |
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Páginas: |
15 p. |
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ISSN: |
1932-6203 |
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DOI: |
10.1371/journal.pone.0249699 |
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Idioma: |
Inglês |
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Conteúdo: |
Plants have developed various mechanisms to respond specifically to each biotrophic attack. It has been shown that the electrical signals emitted by plants are associated with herbivory stress responses and can lead to the activation of multiple defences. Bt cotton is a genetically modified pest-resistant plant that produces an insecticide from Bacillus thuringiensis (Bt) to control Lepidopteran species. Surprisingly, there is no study?yet, that characterizes the signalling mechanisms in transgenic cotton plants attacked by non-target insects, such as aphids. In this study, we characterized the production of electrical signals on Bt and non-Bt cotton plants infested with Aphis gossypii and, in addition, we characterized the dispersal behaviour of aphids to correlate this behaviour to plant signalling responses. Electrical signalling of the plants was recorded with an extracellular measurement technique. Impressively, our results showed that both Bt and non-Bt cotton varieties, when attacked by A. gossypii, emitted potential variation-type electrical signals and clearly showed the presence of distinct responses regarding their perception and the behaviour ofaphids, with evidence of delay, in terms of signal amount, and almost twice the amount of Cry1F protein was observed on Bt cotton plants at the highest density of insects/plant. We present in our article some hypotheses that are based on plant physiology and insect behaviour to explain the responses found on Bt cotton plants under aphid stress. MenosPlants have developed various mechanisms to respond specifically to each biotrophic attack. It has been shown that the electrical signals emitted by plants are associated with herbivory stress responses and can lead to the activation of multiple defences. Bt cotton is a genetically modified pest-resistant plant that produces an insecticide from Bacillus thuringiensis (Bt) to control Lepidopteran species. Surprisingly, there is no study?yet, that characterizes the signalling mechanisms in transgenic cotton plants attacked by non-target insects, such as aphids. In this study, we characterized the production of electrical signals on Bt and non-Bt cotton plants infested with Aphis gossypii and, in addition, we characterized the dispersal behaviour of aphids to correlate this behaviour to plant signalling responses. Electrical signalling of the plants was recorded with an extracellular measurement technique. Impressively, our results showed that both Bt and non-Bt cotton varieties, when attacked by A. gossypii, emitted potential variation-type electrical signals and clearly showed the presence of distinct responses regarding their perception and the behaviour ofaphids, with evidence of delay, in terms of signal amount, and almost twice the amount of Cry1F protein was observed on Bt cotton plants at the highest density of insects/plant. We present in our article some hypotheses that are based on plant physiology and insect behaviour to explain the responses found on Bt cotton plan... Mostrar Tudo |
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Thesagro: |
Algodão; Aphis Gossypii; Bacillus Thuringiensis; Defesa Vegetal; Organismo Transgênico. |
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Thesaurus Nal: |
Animal stress; Cotton; Defense mechanisms; Transgenic plants. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/231131/1/ELECTRICAL-SIGNALLING-BT-NON-BT-COTTON.pdf
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Marc: |
LEADER 02482naa a2200337 a 4500
001 2139863
005 2022-02-12
008 2021 bl uuuu u00u1 u #d
022 $a1932-6203
024 7 $a10.1371/journal.pone.0249699$2DOI
100 1 $aPACHÚ, J. K. S.
245 $aElectrical signalling on Bt and non-Bt cotton plants under stress by Aphis gossypii.$h[electronic resource]
260 $c2021
300 $a15 p.
520 $aPlants have developed various mechanisms to respond specifically to each biotrophic attack. It has been shown that the electrical signals emitted by plants are associated with herbivory stress responses and can lead to the activation of multiple defences. Bt cotton is a genetically modified pest-resistant plant that produces an insecticide from Bacillus thuringiensis (Bt) to control Lepidopteran species. Surprisingly, there is no study?yet, that characterizes the signalling mechanisms in transgenic cotton plants attacked by non-target insects, such as aphids. In this study, we characterized the production of electrical signals on Bt and non-Bt cotton plants infested with Aphis gossypii and, in addition, we characterized the dispersal behaviour of aphids to correlate this behaviour to plant signalling responses. Electrical signalling of the plants was recorded with an extracellular measurement technique. Impressively, our results showed that both Bt and non-Bt cotton varieties, when attacked by A. gossypii, emitted potential variation-type electrical signals and clearly showed the presence of distinct responses regarding their perception and the behaviour ofaphids, with evidence of delay, in terms of signal amount, and almost twice the amount of Cry1F protein was observed on Bt cotton plants at the highest density of insects/plant. We present in our article some hypotheses that are based on plant physiology and insect behaviour to explain the responses found on Bt cotton plants under aphid stress.
650 $aAnimal stress
650 $aCotton
650 $aDefense mechanisms
650 $aTransgenic plants
650 $aAlgodão
650 $aAphis Gossypii
650 $aBacillus Thuringiensis
650 $aDefesa Vegetal
650 $aOrganismo Transgênico
700 1 $aMACHEDO, F. C. O.
700 1 $aMALAQUIAS, J. P.
700 1 $aRAMALHO, F. de S.
700 1 $aOLIVEIRA, R. F.
700 1 $aFRANCO, F. P.
700 1 $aGODOY, W. A. C.
773 $tPLoS ONE$gv. 16, n. 4, e0249699, p. 1-15, 2021.
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Registro original: |
Embrapa Algodão (CNPA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
03/11/2008 |
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Data da última atualização: |
18/10/2022 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Autoria: |
OLIVEIRA, L. A. de; SANTANA, F. A.; AMORIM, T. da S.; SILVEIRA, F. G. da; SANTANA, P. N. |
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Afiliação: |
Luciana Alves de Oliveira, CNPMF; Fernanda Alves Santana, UFRB; Tatiane da Silva Amorim, CNPMF; Felipe Gomes da Silveira, UFRB; Paula Nascimento Santana, UFRB. |
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Título: |
Determinação das características físico químicas de variedades de tangerina do banco de germoplasma da Embrapa Mandioca e Fruticultura Tropical. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE CIÊNCIA E TECNOLOGIA DE ALIMENTOS, 21.; SEMINÁRIO LATINO AMERICANO E DO CARIBE DE CIÊNCIA E TECNOLOGIA DE ALIMENTOS, 15., 2008, Belo Horizonte. Anais... Belo Horizonte: sbCTA, 2008. |
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Idioma: |
Português |
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Conteúdo: |
Na citricultura mundial, as tangerinas constituem o segundo grupo de frutos cítricos mais importantes, ocupando, possivelmente, a maior faixa de adaptação climática entre os citrus cultivados, uma vez que são plantas igualmente tolerantes a níveis altos e baixos de temperatura ambiente (PINTO et al., 2007). Os citros são importantes fontes de vitaminas e fibras, além de serem reconhecidos por conterem antioxidantes como ácido ascórbico, compostos fenólicos e flavonóides, que são compostos importantes para a nutrição humana (COUTO & CANNIATTI-BRAZACA, 2007). |
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Palavras-Chave: |
Característica. |
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Thesagro: |
Tangerina. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01356naa a2200193 a 4500
001 1655156
005 2022-10-18
008 2008 bl uuuu u00u1 u #d
100 1 $aOLIVEIRA, L. A. de
245 $aDeterminação das características físico químicas de variedades de tangerina do banco de germoplasma da Embrapa Mandioca e Fruticultura Tropical.
260 $c2008
520 $aNa citricultura mundial, as tangerinas constituem o segundo grupo de frutos cítricos mais importantes, ocupando, possivelmente, a maior faixa de adaptação climática entre os citrus cultivados, uma vez que são plantas igualmente tolerantes a níveis altos e baixos de temperatura ambiente (PINTO et al., 2007). Os citros são importantes fontes de vitaminas e fibras, além de serem reconhecidos por conterem antioxidantes como ácido ascórbico, compostos fenólicos e flavonóides, que são compostos importantes para a nutrição humana (COUTO & CANNIATTI-BRAZACA, 2007).
650 $aTangerina
653 $aCaracterística
700 1 $aSANTANA, F. A.
700 1 $aAMORIM, T. da S.
700 1 $aSILVEIRA, F. G. da
700 1 $aSANTANA, P. N.
773 $tIn: CONGRESSO BRASILEIRO DE CIÊNCIA E TECNOLOGIA DE ALIMENTOS, 21.; SEMINÁRIO LATINO AMERICANO E DO CARIBE DE CIÊNCIA E TECNOLOGIA DE ALIMENTOS, 15., 2008, Belo Horizonte. Anais... Belo Horizonte: sbCTA, 2008.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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