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Registro Completo |
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
04/08/2021 |
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Data da última atualização: |
04/08/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
REISSIG, G. N.; OLIVEIRA, T. F. DE C.; OLIVEIRA, R. P. de; POSSO, D. A.; PARISE, A. G.; NAVA, D. E. |
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Afiliação: |
GABRIELA NIEMEYER REISSIG, UFPEL; THIAGO FRANCISCO DE CARVALHO OLIVEIRA, UFPEL; RICARDO PADILHA DE OLIVEIRA, UFPEL; DOUGLAS ANTÔNIO POSSO, UFPEL; ANDRÉ GEREMIA PARISE, UFPEL; DORI EDSON NAVA, CPACT. |
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Título: |
Fruit herbivory alters plant electrome: evidence for fruit-shoot long-distance electrical signaling in tomato plants. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Frontiers in Sustainable Food Systems, v. 5, Article 65, July 2021. |
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Idioma: |
Inglês |
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Conteúdo: |
The electrical activity of tomato plants subjected to fruit herbivory was investigated. The study aimed to test the hypothesis that tomato fruits transmit long-distance electrical signals to the shoot when subjected to herbivory. For such, time series classification by machine learning techniques and analyses related to the oxidative response were employed. Tomato plants (cv. ?Micro-Tom?) were placed into a Faraday?s cage and an electrode pair was inserted in the fruit?s peduncle. Helicoverpa armigera caterpillars were placed on the fruit (either green and ripe) for 24 h. The time series were recorded before and after the fruit?s exposure of the caterpillars. The plant material for chemical analyses was collected 24 and 48 h after the end of the acquisition of electrophysiological data. The time series were analyzed by the following techniques: Fast Fourier Transform (FFT), Wavelet Transform, Power Spectral Density (PSD), and Approximate Entropy. The following features from FFT, PSD, and Wavelet Transform were used for PCA (Principal Component Analysis): average, maximum and minimum value, variance, skewness, and kurtosis. Additionally, these features were used in Machine Learning (ML) analyses for looking for classifiable patterns between tomato plants before and after fruit herbivory. Also, we compared the electrome before and after herbivory in the green and ripe fruits. To evaluate an oxidative response in different organs, hydrogen peroxide, superoxide anion, catalase, ascorbate peroxidase, guaiacol peroxidase, and superoxide dismutase activity were evaluated in fruit and leaves. The results show with 90% of accuracy that the electrome registered in the fruit?s peduncle before herbivory is different from the electrome during predation on the fruits. Interestingly, there was also a sharp difference in the electrome of the green and ripe fruits? peduncles before, but not during, the herbivory, which demonstrates that the signals generated by the herbivory stand over the others. Biochemical analysis showed that herbivory in the fruit triggered an oxidative response in other parts of the plant. Here, we demonstrate that the fruit perceives biotic stimuli and transmits electrical signals to the shoot of tomato plants. This study raises new possibilities for studies involving electrical signals in signaling and systemic response, as well as for the applicability of ML to classify electrophysiological data and its use in early diagnosis. MenosThe electrical activity of tomato plants subjected to fruit herbivory was investigated. The study aimed to test the hypothesis that tomato fruits transmit long-distance electrical signals to the shoot when subjected to herbivory. For such, time series classification by machine learning techniques and analyses related to the oxidative response were employed. Tomato plants (cv. ?Micro-Tom?) were placed into a Faraday?s cage and an electrode pair was inserted in the fruit?s peduncle. Helicoverpa armigera caterpillars were placed on the fruit (either green and ripe) for 24 h. The time series were recorded before and after the fruit?s exposure of the caterpillars. The plant material for chemical analyses was collected 24 and 48 h after the end of the acquisition of electrophysiological data. The time series were analyzed by the following techniques: Fast Fourier Transform (FFT), Wavelet Transform, Power Spectral Density (PSD), and Approximate Entropy. The following features from FFT, PSD, and Wavelet Transform were used for PCA (Principal Component Analysis): average, maximum and minimum value, variance, skewness, and kurtosis. Additionally, these features were used in Machine Learning (ML) analyses for looking for classifiable patterns between tomato plants before and after fruit herbivory. Also, we compared the electrome before and after herbivory in the green and ripe fruits. To evaluate an oxidative response in different organs, hydrogen peroxide, superoxide anion, catalase, ... Mostrar Tudo |
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Palavras-Chave: |
Helicoverpa amigera. |
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Thesagro: |
Tomate. |
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Thesaurus Nal: |
Stress response. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/224822/1/Artigo-fsufs-05-657401.pdf
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Marc: |
LEADER 03162naa a2200217 a 4500
001 2133234
005 2021-08-04
008 2021 bl uuuu u00u1 u #d
100 1 $aREISSIG, G. N.
245 $aFruit herbivory alters plant electrome$bevidence for fruit-shoot long-distance electrical signaling in tomato plants.$h[electronic resource]
260 $c2021
520 $aThe electrical activity of tomato plants subjected to fruit herbivory was investigated. The study aimed to test the hypothesis that tomato fruits transmit long-distance electrical signals to the shoot when subjected to herbivory. For such, time series classification by machine learning techniques and analyses related to the oxidative response were employed. Tomato plants (cv. ?Micro-Tom?) were placed into a Faraday?s cage and an electrode pair was inserted in the fruit?s peduncle. Helicoverpa armigera caterpillars were placed on the fruit (either green and ripe) for 24 h. The time series were recorded before and after the fruit?s exposure of the caterpillars. The plant material for chemical analyses was collected 24 and 48 h after the end of the acquisition of electrophysiological data. The time series were analyzed by the following techniques: Fast Fourier Transform (FFT), Wavelet Transform, Power Spectral Density (PSD), and Approximate Entropy. The following features from FFT, PSD, and Wavelet Transform were used for PCA (Principal Component Analysis): average, maximum and minimum value, variance, skewness, and kurtosis. Additionally, these features were used in Machine Learning (ML) analyses for looking for classifiable patterns between tomato plants before and after fruit herbivory. Also, we compared the electrome before and after herbivory in the green and ripe fruits. To evaluate an oxidative response in different organs, hydrogen peroxide, superoxide anion, catalase, ascorbate peroxidase, guaiacol peroxidase, and superoxide dismutase activity were evaluated in fruit and leaves. The results show with 90% of accuracy that the electrome registered in the fruit?s peduncle before herbivory is different from the electrome during predation on the fruits. Interestingly, there was also a sharp difference in the electrome of the green and ripe fruits? peduncles before, but not during, the herbivory, which demonstrates that the signals generated by the herbivory stand over the others. Biochemical analysis showed that herbivory in the fruit triggered an oxidative response in other parts of the plant. Here, we demonstrate that the fruit perceives biotic stimuli and transmits electrical signals to the shoot of tomato plants. This study raises new possibilities for studies involving electrical signals in signaling and systemic response, as well as for the applicability of ML to classify electrophysiological data and its use in early diagnosis.
650 $aStress response
650 $aTomate
653 $aHelicoverpa amigera
700 1 $aOLIVEIRA, T. F. DE C.
700 1 $aOLIVEIRA, R. P. de
700 1 $aPOSSO, D. A.
700 1 $aPARISE, A. G.
700 1 $aNAVA, D. E.
773 $tFrontiers in Sustainable Food Systems$gv. 5, Article 65, July 2021.
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Registro original: |
Embrapa Clima Temperado (CPACT) |
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Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
22/11/1994 |
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Data da última atualização: |
05/05/2020 |
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Autoria: |
FONSECA, C. E. L. da; CONDE, R. de C. C.; SILVA, J. A. da. |
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Afiliação: |
CARLOS EDUARDO LAZARINI DA FONSECA, CPAC; Rita de Cássia Cerqueira Condé, Universidade de Brasília - UnB; JOSE ANTONIO DA SILVA, CNPH. |
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Título: |
Influência da profundidade de semeadura e da luminosidade na germinação de sementes de mangaba (Hancornia speciosa Gom.) |
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Ano de publicação: |
1994 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 29, n. 4, p. 653-660, abr. 1994 |
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Idioma: |
Português |
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Notas: |
Título em inglês: Effect of deep of sowing and light intensity on germination of 'mangaba' (Harcornia speciosa Gom.). seeds. |
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Conteúdo: |
Foram estudados os efeitos de cinco profundidades de semeadura e duas condições de luminosidade na germinação de sementes de baru. As sementes foram plantadas em vasos de plástico de 22,5 cm de diâmetro por 18,5 cm de altura, preenchidos com areia lavada de rio. As profundidades de semeadura foram 0, 1, 2, 3 e 4 cm e as condições de luminosidade foram de 100% em viveiro a pleno sol, e de 50% em viveiro com cobertura de tela sombrite preta. Os ambientes, as profundidades e a interação ambiente x profundidade afetaram a germinação final do baru. A média de germinação a 100% de luminosidade foi de 72,8%, e do ambiente com 50% de luminosidade foi de 52,5%. Similarmente, a germinação média por semana foi de 17,1% e 11,1%, respectivamente. Logo, o ambiente a pleno sol foi o melhor para a germinação das sementes. As profundidades de 1 a 3 cm proporcionaram a obtenção das melhores taxas de germinação, que foram acima de 90% no ambiente a pleno sol, e em torno de 60% no ambiente com 50% de luminosidade. As melhores velocidades de germinação foram também observadas nas profundidades de 1 a 3 cm. A interação ocorreu de forma significativa a 0 cm, onde os índices de germinação e de velocidade de germinação, apenas a essa profundidade, foram superiores no ambiente a 50% de luminosidade. Portanto, para uma melhor e mais rápida germinação, as sementes de baru devem ser plantadas entre 1 e 3 cm de profundidade em ambiente com 100% de luminosidade. |
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Palavras-Chave: |
Sementes. |
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Thesagro: |
Germinação; Hancornia Speciosa; Mangaba. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/212730/1/Influencia-da-profundidade-de-semeadura-e-da-luminosidade.pdf
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Marc: |
LEADER 02253naa a2200205 a 4500
001 2122086
005 2020-05-05
008 1994 bl uuuu u00u1 u #d
100 1 $aFONSECA, C. E. L. da
245 $aInfluência da profundidade de semeadura e da luminosidade na germinação de sementes de mangaba (Hancornia speciosa Gom.)
260 $c1994
500 $aTítulo em inglês: Effect of deep of sowing and light intensity on germination of 'mangaba' (Harcornia speciosa Gom.). seeds.
520 $aForam estudados os efeitos de cinco profundidades de semeadura e duas condições de luminosidade na germinação de sementes de baru. As sementes foram plantadas em vasos de plástico de 22,5 cm de diâmetro por 18,5 cm de altura, preenchidos com areia lavada de rio. As profundidades de semeadura foram 0, 1, 2, 3 e 4 cm e as condições de luminosidade foram de 100% em viveiro a pleno sol, e de 50% em viveiro com cobertura de tela sombrite preta. Os ambientes, as profundidades e a interação ambiente x profundidade afetaram a germinação final do baru. A média de germinação a 100% de luminosidade foi de 72,8%, e do ambiente com 50% de luminosidade foi de 52,5%. Similarmente, a germinação média por semana foi de 17,1% e 11,1%, respectivamente. Logo, o ambiente a pleno sol foi o melhor para a germinação das sementes. As profundidades de 1 a 3 cm proporcionaram a obtenção das melhores taxas de germinação, que foram acima de 90% no ambiente a pleno sol, e em torno de 60% no ambiente com 50% de luminosidade. As melhores velocidades de germinação foram também observadas nas profundidades de 1 a 3 cm. A interação ocorreu de forma significativa a 0 cm, onde os índices de germinação e de velocidade de germinação, apenas a essa profundidade, foram superiores no ambiente a 50% de luminosidade. Portanto, para uma melhor e mais rápida germinação, as sementes de baru devem ser plantadas entre 1 e 3 cm de profundidade em ambiente com 100% de luminosidade.
650 $aGerminação
650 $aHancornia Speciosa
650 $aMangaba
653 $aSementes
700 1 $aCONDE, R. de C. C.
700 1 $aSILVA, J. A. da
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 29, n. 4, p. 653-660, abr. 1994
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Embrapa Unidades Centrais (AI-SEDE) |
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