Silício e indutores de resistência no controle da pinta bacteriana do tomateiro e na atividade de enzimas de defesa

Detalhes bibliográficos
Autor(a) principal: ANDRADE, Camila Cristina Lage de
Data de Publicação: 2012
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Biblioteca Digital de Teses e Dissertações da UFRPE
Texto Completo: http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6427
Resumo: The bacterial speck caused by Pseudomonas syringae pv. tomato (Pst) (Okabe) Young, Dye & Wilkie has economic relevance to the tomato for industry in Brazil. The use of products that potentiate and/or induce plant defenses is an alternative that meets the requirements of integrated disease management. This study aimed to evaluate the effect of silicon (Si) and chemical inducers in some components of tomato resistance to bacterial speck and activity of enzymes involved in plant defense. In the first study, tomato plants were grown in: soil without calcium silicate (control) (T1), soil without calcium silicate and plants sprayed with Supa Silica® (SS) (2 mL/L SS) (T2) and soil with calcium silicate (0.38 g) (T3), being inoculated by spraying with a suspension of the pathogen. Our research evaluated the incubation period (IP), number of lesions (NL) per plant, severity estimated by the software QUANT 1.0 (SEQ) and leaf concentration of Si, as well as the activity of enzymes peroxidases (POX), polyphenoloxidases (PPO) β-1,3-glucanases (GLU), phenylalanine ammonia lyases (PAL), lipoxygenases (LOX) and concentration of malondialdehyde (MDA). It was assessed the effect of SS in the Pst growth in vitro. There was no significant difference between treatments for the IP and the foliar concentration of Si. No significant differences were found for the NL per plant and SEQ between T3 and control. T2 significantly reduced NL in 46.8 and 45.1% and SEQ in 61.5 and 56.2% when compared with control and T3, respectively. There was negative linear response of SS doses on the Pst growth in vitro. The activity of POX, PPO and GLU was significantly higher in T2 and T3. The activity of FAL and LOX was significantly higher in T3. The MDA concentration was significantly higher in T2 compared to control, in non-inoculated plants and at 7 days after inoculation (d.a.i.), being significantly lower at 10 d.a.i. In the second study, three experiments were conducted to evaluate the effect of jasmonic acid (JA; 0.1 mM), ethephon (ET, 0.5 mM) and acibenzolar-S-methyl (Bion®, ASM; 300 mg/L) sprayed 48 h before inoculation with Pst, evaluating the IP and NL per plant, and the activity of enzymes POX, PPO, GLU and LOX. It was also assessed the effect of JA and ET in the growth of Pst in vitro. Only in experiment 3 incubation period increased significantly by one day in the plants sprayed with ASM compared with control. In all experiments, NL per plant was significantly reduced by JA, ET e ASM in relation to the control reaching values of 38.9, 45.3 and 68.1%, respectively, in experiment 2. The growth of Pst in vitro was not significantly influenced. In some evaluation times JA has significantly raised the activity of POX, PPO and GLU; ASM has elevated the activity of PPO, GLU and LOX, while ET only significantly raised the activity of GLU and LOX compared to the control. The results of these studies suggest that spraying tomato plants with SS and the inducers JA, ET and ASM affected some components of tomato resistance to bacterial speck, and activated the enzymes POX, PPO, GLU, PAL and LOX, involved in defense responses of tomato plants to Pst.
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spelling MARIANO, Rosa de Lima RamosOLIVEIRA, José RogérioRODRIGUES, Fabrício ÁvilaSOUZA, Elineide Barbosa deSILVA, Adriano Márcio Freirehttp://lattes.cnpq.br/0957517640185329ANDRADE, Camila Cristina Lage de2017-02-17T13:39:56Z2012-02-16ANDRADE, Camila Cristina Lage de. Silício e indutores de resistência no controle da pinta bacteriana do tomateiro e na atividade de enzimas de defesa. 2012. 80 f. Dissertação (Programa de Pós-Graduação em Fitopatologia) - Universidade Federal Rural de Pernambuco, Recife.http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6427The bacterial speck caused by Pseudomonas syringae pv. tomato (Pst) (Okabe) Young, Dye & Wilkie has economic relevance to the tomato for industry in Brazil. The use of products that potentiate and/or induce plant defenses is an alternative that meets the requirements of integrated disease management. This study aimed to evaluate the effect of silicon (Si) and chemical inducers in some components of tomato resistance to bacterial speck and activity of enzymes involved in plant defense. In the first study, tomato plants were grown in: soil without calcium silicate (control) (T1), soil without calcium silicate and plants sprayed with Supa Silica® (SS) (2 mL/L SS) (T2) and soil with calcium silicate (0.38 g) (T3), being inoculated by spraying with a suspension of the pathogen. Our research evaluated the incubation period (IP), number of lesions (NL) per plant, severity estimated by the software QUANT 1.0 (SEQ) and leaf concentration of Si, as well as the activity of enzymes peroxidases (POX), polyphenoloxidases (PPO) β-1,3-glucanases (GLU), phenylalanine ammonia lyases (PAL), lipoxygenases (LOX) and concentration of malondialdehyde (MDA). It was assessed the effect of SS in the Pst growth in vitro. There was no significant difference between treatments for the IP and the foliar concentration of Si. No significant differences were found for the NL per plant and SEQ between T3 and control. T2 significantly reduced NL in 46.8 and 45.1% and SEQ in 61.5 and 56.2% when compared with control and T3, respectively. There was negative linear response of SS doses on the Pst growth in vitro. The activity of POX, PPO and GLU was significantly higher in T2 and T3. The activity of FAL and LOX was significantly higher in T3. The MDA concentration was significantly higher in T2 compared to control, in non-inoculated plants and at 7 days after inoculation (d.a.i.), being significantly lower at 10 d.a.i. In the second study, three experiments were conducted to evaluate the effect of jasmonic acid (JA; 0.1 mM), ethephon (ET, 0.5 mM) and acibenzolar-S-methyl (Bion®, ASM; 300 mg/L) sprayed 48 h before inoculation with Pst, evaluating the IP and NL per plant, and the activity of enzymes POX, PPO, GLU and LOX. It was also assessed the effect of JA and ET in the growth of Pst in vitro. Only in experiment 3 incubation period increased significantly by one day in the plants sprayed with ASM compared with control. In all experiments, NL per plant was significantly reduced by JA, ET e ASM in relation to the control reaching values of 38.9, 45.3 and 68.1%, respectively, in experiment 2. The growth of Pst in vitro was not significantly influenced. In some evaluation times JA has significantly raised the activity of POX, PPO and GLU; ASM has elevated the activity of PPO, GLU and LOX, while ET only significantly raised the activity of GLU and LOX compared to the control. The results of these studies suggest that spraying tomato plants with SS and the inducers JA, ET and ASM affected some components of tomato resistance to bacterial speck, and activated the enzymes POX, PPO, GLU, PAL and LOX, involved in defense responses of tomato plants to Pst.A pinta bacteriana causada por Pseudomonas syringae pv. tomato (Pst) (Okabe) Young, Dye & Wilkie tem importância econômica para a cultura do tomateiro industrial no Brasil. O uso de agentes potencializadores e/ou indutores das defesas das plantas é uma alternativa que atende aos requisitos do manejo integrado de doenças. Este estudo avaliou o efeito do silício (Si) e de indutores químicos em alguns componentes de resistência do tomateiro à pinta bacteriana e na atividade de enzimas envolvidas na defesa das plantas. No primeiro estudo plantas de tomateiro foram cultivadas em: solo sem silicato de cálcio (controle) (T1), solo sem silicato de cálcio e plantas pulverizadas com Supa Sílica® (SS) (2 mL/L de SS) (T2) e solo com silicato de cálcio (0,38 g) (T3), sendo inoculadas por pulverização com suspensão do patógeno. Foram avaliados o período de incubação (PI), número de lesões (NL) por planta, severidade estimada pelo software QUANT 1.0 (SEQ) e concentração foliar de Si, bem como a atividade das enzimas peroxidases (POX), polifenoloxidases (PFO), β-1,3-glucanases (GLU), fenilalanina amônia-liases (FAL), lipoxigenases (LOX) e concentração de aldeído malônico (MDA). Também foi avaliado o efeito do SS no crescimento de Pst in vitro. Não houve diferença significativa entre os tratamentos para o PI e para a concentração foliar de Si. Não houve diferença significativa para o NL por planta e a SEQ entre o tratamento T3 e o controle. O tratamento T2 reduziu significativamente o NL 46,8 e 45,1% e a SEQ 61,5 e 56,2%, em relação ao controle e ao tratamento T3, respectivamente. Houve resposta linear negativa das doses de SS no crescimento da Pst in vitro. A atividade das POX, PFO e GLU foi significativamente maior nos tratamentos T2 e T3. A atividade das FAL e das LOX foi significativamente maior no T3. A concentração de MDA foi significativamente maior no tratamento T2 em relação ao controle, nas plantas não inoculadas com Pst e aos 7 dias após inoculação (d.a.i.); sendo significativamente menor aos 10 d.a.i. No segundo estudo, três experimentos foram realizados para avaliar o efeito dos indutores ácido jasmônico (AJ; 0,1 mM), ethephon (ET; 0,5 mM) e acibenzolar-S-metil (Bion®, ASM; 300 mg/L) pulverizados 48 h antes da inoculação da Pst, avaliando-se o PI e o NL por planta, além da atividade das enzimas POX, PFO, GLU e LOX. Também foi avaliado o efeito do AJ e do ET no crescimento da Pst in vitro. Apenas no experimento 3 o PI aumentou significativamente em 1 dia nas plantas pulverizadas com ASM em relação ao controle. O NL por planta foi significativamente reduzido pelos tratamentos AJ, ET e ASM em relação ao controle para todos os experimentos, atingindo valores de 38,9, 45,3 e 68,1%, respectivamente, no experimento 2. O crescimento da Pst in vitro não foi influenciado significativamente pelo AJ ou ET. Em determinadas épocas de avaliação, o AJ elevou significativamente a atividade das POX, PFO e GLU; ASM elevou a atividade das PFO, GLU e LOX e o ET elevou a atividade das GLU e LOX em relação ao controle. Os resultados desses estudos evidenciam que a pulverização com SS e com indutores AJ, ET e ASM afetaram alguns dos componentes de resistência do tomateiro à pinta bacteriana, além de potencializar as enzimas POX, PFO, GLU, FAL e LOX, relacionadas com a defesa das plantas em resposta à Pst.Submitted by (lucia.rodrigues@ufrpe.br) on 2017-02-17T13:39:56Z No. of bitstreams: 1 Camila Cristina Lage de Andrade.pdf: 845467 bytes, checksum: ef8d7e269cd9b79e14fc8dbcd17e8edd (MD5)Made available in DSpace on 2017-02-17T13:39:56Z (GMT). No. of bitstreams: 1 Camila Cristina Lage de Andrade.pdf: 845467 bytes, checksum: ef8d7e269cd9b79e14fc8dbcd17e8edd (MD5) Previous issue date: 2012-02-16Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPqapplication/pdfporUniversidade Federal Rural de PernambucoPrograma de Pós-Graduação em FitopatologiaUFRPEBrasilDepartamento de AgronomiaAcibenzolar-S-metilÁcido jasmônicoEthephonPseudomonas syringaeSilício solúvelSolanum lycopersicumFitopatologiaAcibenzolar-S-methylJsmonic acidSoluble siliconFITOSSANIDADE::FITOPATOLOGIASilício e indutores de resistência no controle da pinta bacteriana do tomateiro e na atividade de enzimas de defesainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis1343367238723626701600600600600-6800553879972229205-6207026424523013504-2555911436985713659info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFRPEinstname:Universidade Federal Rural de Pernambuco (UFRPE)instacron:UFRPELICENSElicense.txtlicense.txttext/plain; charset=utf-82165http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/6427/1/license.txtbd3efa91386c1718a7f26a329fdcb468MD51ORIGINALCamila Cristina Lage de Andrade.pdfCamila Cristina Lage de Andrade.pdfapplication/pdf845467http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/6427/2/Camila+Cristina+Lage+de++Andrade.pdfef8d7e269cd9b79e14fc8dbcd17e8eddMD52tede2/64272017-02-17 10:39:56.283oai:tede2: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Biblioteca Digital de Teses e Dissertaçõeshttp://www.tede2.ufrpe.br:8080/tede/PUBhttp://www.tede2.ufrpe.br:8080/oai/requestbdtd@ufrpe.br ||bdtd@ufrpe.bropendoar:2024-05-28T12:34:19.883767Biblioteca Digital de Teses e Dissertações da UFRPE - Universidade Federal Rural de Pernambuco (UFRPE)false
dc.title.por.fl_str_mv Silício e indutores de resistência no controle da pinta bacteriana do tomateiro e na atividade de enzimas de defesa
title Silício e indutores de resistência no controle da pinta bacteriana do tomateiro e na atividade de enzimas de defesa
spellingShingle Silício e indutores de resistência no controle da pinta bacteriana do tomateiro e na atividade de enzimas de defesa
ANDRADE, Camila Cristina Lage de
Acibenzolar-S-metil
Ácido jasmônico
Ethephon
Pseudomonas syringae
Silício solúvel
Solanum lycopersicum
Fitopatologia
Acibenzolar-S-methyl
Jsmonic acid
Soluble silicon
FITOSSANIDADE::FITOPATOLOGIA
title_short Silício e indutores de resistência no controle da pinta bacteriana do tomateiro e na atividade de enzimas de defesa
title_full Silício e indutores de resistência no controle da pinta bacteriana do tomateiro e na atividade de enzimas de defesa
title_fullStr Silício e indutores de resistência no controle da pinta bacteriana do tomateiro e na atividade de enzimas de defesa
title_full_unstemmed Silício e indutores de resistência no controle da pinta bacteriana do tomateiro e na atividade de enzimas de defesa
title_sort Silício e indutores de resistência no controle da pinta bacteriana do tomateiro e na atividade de enzimas de defesa
author ANDRADE, Camila Cristina Lage de
author_facet ANDRADE, Camila Cristina Lage de
author_role author
dc.contributor.advisor1.fl_str_mv MARIANO, Rosa de Lima Ramos
dc.contributor.advisor-co1.fl_str_mv OLIVEIRA, José Rogério
dc.contributor.advisor-co2.fl_str_mv RODRIGUES, Fabrício Ávila
dc.contributor.referee1.fl_str_mv SOUZA, Elineide Barbosa de
dc.contributor.referee2.fl_str_mv SILVA, Adriano Márcio Freire
dc.contributor.authorLattes.fl_str_mv http://lattes.cnpq.br/0957517640185329
dc.contributor.author.fl_str_mv ANDRADE, Camila Cristina Lage de
contributor_str_mv MARIANO, Rosa de Lima Ramos
OLIVEIRA, José Rogério
RODRIGUES, Fabrício Ávila
SOUZA, Elineide Barbosa de
SILVA, Adriano Márcio Freire
dc.subject.por.fl_str_mv Acibenzolar-S-metil
Ácido jasmônico
Ethephon
Pseudomonas syringae
Silício solúvel
Solanum lycopersicum
Fitopatologia
topic Acibenzolar-S-metil
Ácido jasmônico
Ethephon
Pseudomonas syringae
Silício solúvel
Solanum lycopersicum
Fitopatologia
Acibenzolar-S-methyl
Jsmonic acid
Soluble silicon
FITOSSANIDADE::FITOPATOLOGIA
dc.subject.eng.fl_str_mv Acibenzolar-S-methyl
Jsmonic acid
Soluble silicon
dc.subject.cnpq.fl_str_mv FITOSSANIDADE::FITOPATOLOGIA
description The bacterial speck caused by Pseudomonas syringae pv. tomato (Pst) (Okabe) Young, Dye & Wilkie has economic relevance to the tomato for industry in Brazil. The use of products that potentiate and/or induce plant defenses is an alternative that meets the requirements of integrated disease management. This study aimed to evaluate the effect of silicon (Si) and chemical inducers in some components of tomato resistance to bacterial speck and activity of enzymes involved in plant defense. In the first study, tomato plants were grown in: soil without calcium silicate (control) (T1), soil without calcium silicate and plants sprayed with Supa Silica® (SS) (2 mL/L SS) (T2) and soil with calcium silicate (0.38 g) (T3), being inoculated by spraying with a suspension of the pathogen. Our research evaluated the incubation period (IP), number of lesions (NL) per plant, severity estimated by the software QUANT 1.0 (SEQ) and leaf concentration of Si, as well as the activity of enzymes peroxidases (POX), polyphenoloxidases (PPO) β-1,3-glucanases (GLU), phenylalanine ammonia lyases (PAL), lipoxygenases (LOX) and concentration of malondialdehyde (MDA). It was assessed the effect of SS in the Pst growth in vitro. There was no significant difference between treatments for the IP and the foliar concentration of Si. No significant differences were found for the NL per plant and SEQ between T3 and control. T2 significantly reduced NL in 46.8 and 45.1% and SEQ in 61.5 and 56.2% when compared with control and T3, respectively. There was negative linear response of SS doses on the Pst growth in vitro. The activity of POX, PPO and GLU was significantly higher in T2 and T3. The activity of FAL and LOX was significantly higher in T3. The MDA concentration was significantly higher in T2 compared to control, in non-inoculated plants and at 7 days after inoculation (d.a.i.), being significantly lower at 10 d.a.i. In the second study, three experiments were conducted to evaluate the effect of jasmonic acid (JA; 0.1 mM), ethephon (ET, 0.5 mM) and acibenzolar-S-methyl (Bion®, ASM; 300 mg/L) sprayed 48 h before inoculation with Pst, evaluating the IP and NL per plant, and the activity of enzymes POX, PPO, GLU and LOX. It was also assessed the effect of JA and ET in the growth of Pst in vitro. Only in experiment 3 incubation period increased significantly by one day in the plants sprayed with ASM compared with control. In all experiments, NL per plant was significantly reduced by JA, ET e ASM in relation to the control reaching values of 38.9, 45.3 and 68.1%, respectively, in experiment 2. The growth of Pst in vitro was not significantly influenced. In some evaluation times JA has significantly raised the activity of POX, PPO and GLU; ASM has elevated the activity of PPO, GLU and LOX, while ET only significantly raised the activity of GLU and LOX compared to the control. The results of these studies suggest that spraying tomato plants with SS and the inducers JA, ET and ASM affected some components of tomato resistance to bacterial speck, and activated the enzymes POX, PPO, GLU, PAL and LOX, involved in defense responses of tomato plants to Pst.
publishDate 2012
dc.date.issued.fl_str_mv 2012-02-16
dc.date.accessioned.fl_str_mv 2017-02-17T13:39:56Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.citation.fl_str_mv ANDRADE, Camila Cristina Lage de. Silício e indutores de resistência no controle da pinta bacteriana do tomateiro e na atividade de enzimas de defesa. 2012. 80 f. Dissertação (Programa de Pós-Graduação em Fitopatologia) - Universidade Federal Rural de Pernambuco, Recife.
dc.identifier.uri.fl_str_mv http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6427
identifier_str_mv ANDRADE, Camila Cristina Lage de. Silício e indutores de resistência no controle da pinta bacteriana do tomateiro e na atividade de enzimas de defesa. 2012. 80 f. Dissertação (Programa de Pós-Graduação em Fitopatologia) - Universidade Federal Rural de Pernambuco, Recife.
url http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6427
dc.language.iso.fl_str_mv por
language por
dc.relation.program.fl_str_mv 1343367238723626701
dc.relation.confidence.fl_str_mv 600
600
600
600
dc.relation.department.fl_str_mv -6800553879972229205
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