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Registro Completo |
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
Data corrente: |
12/05/2020 |
Data da última atualização: |
02/06/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SANTOS, A. S.; NEVES, D. M.; SANTANA-VIEIRA, D. D. S.; ALMEIDA, L. A. H.; COSTA, M. G. C.; SOARES FILHO, W. dos S.; PIROVANI, C. P.; COELHO FILHO, M. A.; FERREIRA, C. F.; GESTEIRA, A. da S. |
Afiliação: |
ARIANA S. SANTOS, UESC; DIANA M. NEVES, UESC; DAYSE DRIELLY S. SANTANA-VIEIRA, UFOPA; LUCAS ARAGÃO H. ALMEIDA, UESC; MÁRCIO GILBERTO C. COSTA, UESC; WALTER DOS SANTOS SOARES FILHO, CNPMF; CARLOS P. PIROVANI, UESC; MAURICIO ANTONIO COELHO FILHO, CNPMF; CLAUDIA FORTES FERREIRA, CNPMF; ABELMON DA SILVA GESTEIRA, CNPMF. |
Título: |
Citrus scion and rootstock combinations show changes in DNA methylation profiles and ABA insensitivity under recurrent drought conditions. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Scientia Horticulturae, v. 267, e.109313, 2020. |
Idioma: |
Inglês |
Conteúdo: |
The physiological, biochemical and molecular responses of scion/rootstock interactions in citrus plants under recurrent drought conditions are still poorly understood. The responses of ?Tahiti acid lime? (TAL) scions grafted to two rootstocks that have different survival strategies under drought conditions ?Rangpur lime? (RL) and ?Sunki Maravilha mandarin? (SM) were investigated during three periods of water deficit, WD1, WD2 and WD3 (plants exposed to one, two and three periods of water deficit, respectively). In the three drought periods, the ?L was maintained at an average of -2.0 MPa. The TAL / SM and TAL / RL combinations showed, due to water deficit, hypermethylation and hypomethylation in the DNA methylation profiles respectively. The physiological parameters analyzed showed very close values for the TAL / SM and TAL / RL combinations, which indicates that the TAL does not respond to rootstock behavior with different response patterns to water deficit. Other findings suggest that the TAL scion is unresponsive to the plant hormone ABA, which plays a crucial role in plant responses to water deficit. The results show that the severity and recurrence of drought stress conditions reduced excessive ROS production through the action of the antioxidant enzymes, which confirms the different defense mechanisms to drought stress conditions that can be used by these scion/rootstock combinations. We concluded that the epigenetic marks they are involved in the responses to water deficit, conferring tolerance the citrus plants. In addition, in a recurrent water restriction condition the physiological parameters and the antioxidant system are genotype - dependent responsive. The present study addresses epigenetic modifications, physiological and biochemical mechanisms associated with drought tolerance in citrus plants. MenosThe physiological, biochemical and molecular responses of scion/rootstock interactions in citrus plants under recurrent drought conditions are still poorly understood. The responses of ?Tahiti acid lime? (TAL) scions grafted to two rootstocks that have different survival strategies under drought conditions ?Rangpur lime? (RL) and ?Sunki Maravilha mandarin? (SM) were investigated during three periods of water deficit, WD1, WD2 and WD3 (plants exposed to one, two and three periods of water deficit, respectively). In the three drought periods, the ?L was maintained at an average of -2.0 MPa. The TAL / SM and TAL / RL combinations showed, due to water deficit, hypermethylation and hypomethylation in the DNA methylation profiles respectively. The physiological parameters analyzed showed very close values for the TAL / SM and TAL / RL combinations, which indicates that the TAL does not respond to rootstock behavior with different response patterns to water deficit. Other findings suggest that the TAL scion is unresponsive to the plant hormone ABA, which plays a crucial role in plant responses to water deficit. The results show that the severity and recurrence of drought stress conditions reduced excessive ROS production through the action of the antioxidant enzymes, which confirms the different defense mechanisms to drought stress conditions that can be used by these scion/rootstock combinations. We concluded that the epigenetic marks they are involved in the responses to water de... Mostrar Tudo |
Thesagro: |
Fruta Cítrica. |
Thesaurus Nal: |
Citrus. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02638naa a2200253 a 4500 001 2122246 005 2020-06-02 008 2020 bl uuuu u00u1 u #d 100 1 $aSANTOS, A. S. 245 $aCitrus scion and rootstock combinations show changes in DNA methylation profiles and ABA insensitivity under recurrent drought conditions.$h[electronic resource] 260 $c2020 520 $aThe physiological, biochemical and molecular responses of scion/rootstock interactions in citrus plants under recurrent drought conditions are still poorly understood. The responses of ?Tahiti acid lime? (TAL) scions grafted to two rootstocks that have different survival strategies under drought conditions ?Rangpur lime? (RL) and ?Sunki Maravilha mandarin? (SM) were investigated during three periods of water deficit, WD1, WD2 and WD3 (plants exposed to one, two and three periods of water deficit, respectively). In the three drought periods, the ?L was maintained at an average of -2.0 MPa. The TAL / SM and TAL / RL combinations showed, due to water deficit, hypermethylation and hypomethylation in the DNA methylation profiles respectively. The physiological parameters analyzed showed very close values for the TAL / SM and TAL / RL combinations, which indicates that the TAL does not respond to rootstock behavior with different response patterns to water deficit. Other findings suggest that the TAL scion is unresponsive to the plant hormone ABA, which plays a crucial role in plant responses to water deficit. The results show that the severity and recurrence of drought stress conditions reduced excessive ROS production through the action of the antioxidant enzymes, which confirms the different defense mechanisms to drought stress conditions that can be used by these scion/rootstock combinations. We concluded that the epigenetic marks they are involved in the responses to water deficit, conferring tolerance the citrus plants. In addition, in a recurrent water restriction condition the physiological parameters and the antioxidant system are genotype - dependent responsive. The present study addresses epigenetic modifications, physiological and biochemical mechanisms associated with drought tolerance in citrus plants. 650 $aCitrus 650 $aFruta Cítrica 700 1 $aNEVES, D. M. 700 1 $aSANTANA-VIEIRA, D. D. S. 700 1 $aALMEIDA, L. A. H. 700 1 $aCOSTA, M. G. C. 700 1 $aSOARES FILHO, W. dos S. 700 1 $aPIROVANI, C. P. 700 1 $aCOELHO FILHO, M. A. 700 1 $aFERREIRA, C. F. 700 1 $aGESTEIRA, A. da S. 773 $tScientia Horticulturae$gv. 267, e.109313, 2020.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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Registro Completo
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
09/10/1996 |
Data da última atualização: |
14/07/2021 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
PRIMAVESI, O.; TASI, S. M.; FAQUIN. V. |
Afiliação: |
CENA-USP, Piracicaba, SP. |
Título: |
Causas da redução do crescimento de feijoeiro (Phaseolus vulgaris l.) sobre solo esterilizado+. |
Ano de publicação: |
1989 |
Fonte/Imprenta: |
In: REUNIAO BRASILEIRA SOBRE, 3., 1989, Piracicaba. Anais...Piracicaba: ESALQ, 1989. p.62. |
Idioma: |
Português |
Notas: |
Resumo. |
Conteúdo: |
Estudo dos métodos mais usuais de esterilização em amostras de terra de 2 solos, um de textura barro-argilosa e outro de textura arenosa. |
Palavras-Chave: |
Beans plants; Cultivar; Cultivo; esterilization. |
Thesagro: |
Esterilização; Phaseolus Vulgaris; Solo. |
Thesaurus NAL: |
soil. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/120646/1/digitalizar0036.pdf
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Marc: |
LEADER 00856nam a2200241 a 4500 001 1043256 005 2021-07-14 008 1989 bl uuuu u00u1 u #d 100 1 $aPRIMAVESI, O. 245 $aCausas da redução do crescimento de feijoeiro (Phaseolus vulgaris l.) sobre solo esterilizado+.$h[electronic resource] 260 $aIn: REUNIAO BRASILEIRA SOBRE, 3., 1989, Piracicaba. Anais...Piracicaba: ESALQ, 1989. p.62.$c1989 500 $aResumo. 520 $aEstudo dos métodos mais usuais de esterilização em amostras de terra de 2 solos, um de textura barro-argilosa e outro de textura arenosa. 650 $asoil 650 $aEsterilização 650 $aPhaseolus Vulgaris 650 $aSolo 653 $aBeans plants 653 $aCultivar 653 $aCultivo 653 $aesterilization 700 1 $aTASI, S. M. 700 1 $aFAQUIN. V.
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