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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
06/06/1995 |
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Data da última atualização: |
28/11/2006 |
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Autoria: |
ADKINS, W. K.; RICHARDS, D. B.; LEWIS, D. W.; BULGRIN, E. H. |
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Título: |
Programs for computer simulation of harwood log sawing. |
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Ano de publicação: |
1980 |
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Fonte/Imprenta: |
Madison: USDA. Forest Service, Forest Products Laboratory, 1980. |
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Páginas: |
56p. |
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Série: |
(USDA. For. Serv. Res. Paper. FPL-357). |
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Idioma: |
Inglês |
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Thesagro: |
Computador; Madeira Serrada; Qualidade; Simulação. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00586nam a2200205 a 4500
001 1294908
005 2006-11-28
008 1980 bl uuuu 00u1 u #d
100 1 $aADKINS, W. K.
245 $aPrograms for computer simulation of harwood log sawing.
260 $aMadison: USDA. Forest Service, Forest Products Laboratory$c1980
300 $a56p.
490 $a(USDA. For. Serv. Res. Paper. FPL-357).
650 $aComputador
650 $aMadeira Serrada
650 $aQualidade
650 $aSimulação
700 1 $aRICHARDS, D. B.
700 1 $aLEWIS, D. W.
700 1 $aBULGRIN, E. H.
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Registro original: |
Embrapa Florestas (CNPF) |
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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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Circulação/Nível: |
A - 1 |
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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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Embrapa Algodão (CNPA) |
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