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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
22/06/2017 |
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Data da última atualização: |
23/10/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RUBIO, M. B.; HERMOSA, R.; VICENTE, R.; GOMÉZ-ACOSTA, F. E.; MORCUENDE, R.; MONTE, E.; BETTIOL, W. |
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Afiliação: |
MARIA BELEN RUBI, Universidad de Salamanca; ROSA HERMOSA, Universidad de Salamanca; RUBEN VICENTE, Institute of Natural Resources and Agrobiology of Salamanca; FABIO E GOMEZ-ACOSTA, Universidade de Salamanca; ROSA MORCUENDE, Institute of Natural Resources and Agrobiology of Salamanca; ENRIQUE MONTE, Universidad de Salamanca; WAGNER BETTIOL, CNPMA. |
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Título: |
The combination of trichoderma harzianum and chemical fertilization leads to the deregulation of phytohormone networking, preventing the adaptive responses of tomato plants to salt stress. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Frontiers in Plant Science, v. 8, p. 1-14, 2017. Article 294. |
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DOI: |
http://dx.doi.org/10.3389/fpls.2017.00294 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Plants have evolved effective mechanisms to avoid or reduce the potential damage caused by abiotic stresses. In addition to biocontrol abilities, Trichoderma genus fungi promote growth and alleviate the adverse effects caused by saline stress in plants. Morphological, physiological, and molecular changes were analyzed in salt-stressed tomato plants grown under greenhouse conditions in order to investigate the effects of chemical and biological fertilizations. The application of Trichoderma harzianum T34 to tomato seeds had very positive effects on plant growth, independently of chemical fertilization. The application of salt stress significantly changed the parameters related to growth and gas-exchange rates in tomato plants subject to chemical fertilization. However, the gas-exchange parameters were not affected in unfertilized plants under the same moderate saline stress. The combined application of T34 and salt significantly reduced the fresh and dry weights of NPK-fertilized plants, while the opposite effects were detected when no chemical fertilization was applied. Decaying symptoms were observed in salt-stressed and chemically fertilized plants previously treated with T34. This damaged phenotype was linked to significantly higher intercellular CO2 and slight increases in stomatal conductance and transpiration, and to the deregulation of phytohormone networking in terms of significantly lower expression levels of the salt overlay sensitivity 1 (SOS1) gene, and the genes involved in signaling abscisic acid-, ethylene-, and salicylic acid-dependent pathways and ROS production, in comparison with those observed in salt-challenged NPK-fertilized plants. MenosAbstract: Plants have evolved effective mechanisms to avoid or reduce the potential damage caused by abiotic stresses. In addition to biocontrol abilities, Trichoderma genus fungi promote growth and alleviate the adverse effects caused by saline stress in plants. Morphological, physiological, and molecular changes were analyzed in salt-stressed tomato plants grown under greenhouse conditions in order to investigate the effects of chemical and biological fertilizations. The application of Trichoderma harzianum T34 to tomato seeds had very positive effects on plant growth, independently of chemical fertilization. The application of salt stress significantly changed the parameters related to growth and gas-exchange rates in tomato plants subject to chemical fertilization. However, the gas-exchange parameters were not affected in unfertilized plants under the same moderate saline stress. The combined application of T34 and salt significantly reduced the fresh and dry weights of NPK-fertilized plants, while the opposite effects were detected when no chemical fertilization was applied. Decaying symptoms were observed in salt-stressed and chemically fertilized plants previously treated with T34. This damaged phenotype was linked to significantly higher intercellular CO2 and slight increases in stomatal conductance and transpiration, and to the deregulation of phytohormone networking in terms of significantly lower expression levels of the salt overlay sensitivity 1 (SOS1) gene, and... Mostrar Tudo |
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Palavras-Chave: |
Fitormônio; Phytohormone regulation. |
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Thesagro: |
Regulador de crescimento; Solo salino; Stress; Tomate; Trichoderma Harzianum. |
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Thesaurus Nal: |
Abiotic stress; Growth promotion; Plant hormones; Tomatoes. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/160974/1/2017AP02.pdf
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Marc: |
LEADER 02768naa a2200337 a 4500
001 2071310
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008 2017 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.3389/fpls.2017.00294$2DOI
100 1 $aRUBIO, M. B.
245 $aThe combination of trichoderma harzianum and chemical fertilization leads to the deregulation of phytohormone networking, preventing the adaptive responses of tomato plants to salt stress.$h[electronic resource]
260 $c2017
520 $aAbstract: Plants have evolved effective mechanisms to avoid or reduce the potential damage caused by abiotic stresses. In addition to biocontrol abilities, Trichoderma genus fungi promote growth and alleviate the adverse effects caused by saline stress in plants. Morphological, physiological, and molecular changes were analyzed in salt-stressed tomato plants grown under greenhouse conditions in order to investigate the effects of chemical and biological fertilizations. The application of Trichoderma harzianum T34 to tomato seeds had very positive effects on plant growth, independently of chemical fertilization. The application of salt stress significantly changed the parameters related to growth and gas-exchange rates in tomato plants subject to chemical fertilization. However, the gas-exchange parameters were not affected in unfertilized plants under the same moderate saline stress. The combined application of T34 and salt significantly reduced the fresh and dry weights of NPK-fertilized plants, while the opposite effects were detected when no chemical fertilization was applied. Decaying symptoms were observed in salt-stressed and chemically fertilized plants previously treated with T34. This damaged phenotype was linked to significantly higher intercellular CO2 and slight increases in stomatal conductance and transpiration, and to the deregulation of phytohormone networking in terms of significantly lower expression levels of the salt overlay sensitivity 1 (SOS1) gene, and the genes involved in signaling abscisic acid-, ethylene-, and salicylic acid-dependent pathways and ROS production, in comparison with those observed in salt-challenged NPK-fertilized plants.
650 $aAbiotic stress
650 $aGrowth promotion
650 $aPlant hormones
650 $aTomatoes
650 $aRegulador de crescimento
650 $aSolo salino
650 $aStress
650 $aTomate
650 $aTrichoderma Harzianum
653 $aFitormônio
653 $aPhytohormone regulation
700 1 $aHERMOSA, R.
700 1 $aVICENTE, R.
700 1 $aGOMÉZ-ACOSTA, F. E.
700 1 $aMORCUENDE, R.
700 1 $aMONTE, E.
700 1 $aBETTIOL, W.
773 $tFrontiers in Plant Science$gv. 8, p. 1-14, 2017. Article 294.
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Embrapa Meio Ambiente (CNPMA) |
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| 1. |  | RUBIO, M. B.; HERMOSA, R.; VICENTE, R.; GOMÉZ-ACOSTA, F. E.; MORCUENDE, R.; MONTE, E.; BETTIOL, W. The combination of trichoderma harzianum and chemical fertilization leads to the deregulation of phytohormone networking, preventing the adaptive responses of tomato plants to salt stress. Frontiers in Plant Science, v. 8, p. 1-14, 2017. Article 294.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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