Silicon, acibenzolar-S-methyl and potassium phosphite in the control of brown spot in rice

Detalhes bibliográficos
Autor(a) principal: Nascimento,Kelly Juliane Telles
Data de Publicação: 2016
Outros Autores: Araujo,Leonardo, Resende,Renata Sousa, Schurt,Daniel Augusto, Silva,Washington Luís da, Rodrigues,Fabrício de Ávila
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Bragantia
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052016000200212
Resumo: ABSTRACT This study investigated the effects of silicon (Si), acibenzolar-S-methyl (ASM), and potassium phosphite (Phi) on the potentiation of rice resistance to infection by Bipolaris oryzae. The treatments included the soil amended with Si (1.25 g of calcium silicate per kg of soil), spraying of plants with ASM (500 mg∙L–1), Phi (5 mL∙L–1), and distilled water (control) 24 h before inoculation with B. oryzae. The treatments Si supply and the spraying of ASM and Phi were effective in reducing the area under brown spot progress curve and the number of lesions per cm2 of leaf. Polyphenoloxidases activity was higher for plants supplied with Si. On plants sprayed with ASM, the activities of polyphenoloxidases, phenylalanine ammonia-lyases, chitinases, and β-1,3-glucanases increased. The spraying of plants with Phi did not increase the activities of the studied defense enzymes. Taken together, the results of this study indicated that brown spot symptoms can be greatly reduced with the use of Si, ASM, and Phi.
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spelling Silicon, acibenzolar-S-methyl and potassium phosphite in the control of brown spot in riceBipolaris oryzaeOryza sativahost defense responsesinduction of resistancephenylpropanoidsPR-proteinsABSTRACT This study investigated the effects of silicon (Si), acibenzolar-S-methyl (ASM), and potassium phosphite (Phi) on the potentiation of rice resistance to infection by Bipolaris oryzae. The treatments included the soil amended with Si (1.25 g of calcium silicate per kg of soil), spraying of plants with ASM (500 mg∙L–1), Phi (5 mL∙L–1), and distilled water (control) 24 h before inoculation with B. oryzae. The treatments Si supply and the spraying of ASM and Phi were effective in reducing the area under brown spot progress curve and the number of lesions per cm2 of leaf. Polyphenoloxidases activity was higher for plants supplied with Si. On plants sprayed with ASM, the activities of polyphenoloxidases, phenylalanine ammonia-lyases, chitinases, and β-1,3-glucanases increased. The spraying of plants with Phi did not increase the activities of the studied defense enzymes. Taken together, the results of this study indicated that brown spot symptoms can be greatly reduced with the use of Si, ASM, and Phi.Instituto Agronômico de Campinas2016-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052016000200212Bragantia v.75 n.2 2016reponame:Bragantiainstname:Instituto Agronômico de Campinas (IAC)instacron:IAC10.1590/1678-4499.281info:eu-repo/semantics/openAccessNascimento,Kelly Juliane TellesAraujo,LeonardoResende,Renata SousaSchurt,Daniel AugustoSilva,Washington Luís daRodrigues,Fabrício de Ávilaeng2016-05-02T00:00:00Zoai:scielo:S0006-87052016000200212Revistahttps://www.scielo.br/j/brag/https://old.scielo.br/oai/scielo-oai.phpbragantia@iac.sp.gov.br||bragantia@iac.sp.gov.br1678-44990006-8705opendoar:2016-05-02T00:00Bragantia - Instituto Agronômico de Campinas (IAC)false
dc.title.none.fl_str_mv Silicon, acibenzolar-S-methyl and potassium phosphite in the control of brown spot in rice
title Silicon, acibenzolar-S-methyl and potassium phosphite in the control of brown spot in rice
spellingShingle Silicon, acibenzolar-S-methyl and potassium phosphite in the control of brown spot in rice
Nascimento,Kelly Juliane Telles
Bipolaris oryzae
Oryza sativa
host defense responses
induction of resistance
phenylpropanoids
PR-proteins
title_short Silicon, acibenzolar-S-methyl and potassium phosphite in the control of brown spot in rice
title_full Silicon, acibenzolar-S-methyl and potassium phosphite in the control of brown spot in rice
title_fullStr Silicon, acibenzolar-S-methyl and potassium phosphite in the control of brown spot in rice
title_full_unstemmed Silicon, acibenzolar-S-methyl and potassium phosphite in the control of brown spot in rice
title_sort Silicon, acibenzolar-S-methyl and potassium phosphite in the control of brown spot in rice
author Nascimento,Kelly Juliane Telles
author_facet Nascimento,Kelly Juliane Telles
Araujo,Leonardo
Resende,Renata Sousa
Schurt,Daniel Augusto
Silva,Washington Luís da
Rodrigues,Fabrício de Ávila
author_role author
author2 Araujo,Leonardo
Resende,Renata Sousa
Schurt,Daniel Augusto
Silva,Washington Luís da
Rodrigues,Fabrício de Ávila
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Nascimento,Kelly Juliane Telles
Araujo,Leonardo
Resende,Renata Sousa
Schurt,Daniel Augusto
Silva,Washington Luís da
Rodrigues,Fabrício de Ávila
dc.subject.por.fl_str_mv Bipolaris oryzae
Oryza sativa
host defense responses
induction of resistance
phenylpropanoids
PR-proteins
topic Bipolaris oryzae
Oryza sativa
host defense responses
induction of resistance
phenylpropanoids
PR-proteins
description ABSTRACT This study investigated the effects of silicon (Si), acibenzolar-S-methyl (ASM), and potassium phosphite (Phi) on the potentiation of rice resistance to infection by Bipolaris oryzae. The treatments included the soil amended with Si (1.25 g of calcium silicate per kg of soil), spraying of plants with ASM (500 mg∙L–1), Phi (5 mL∙L–1), and distilled water (control) 24 h before inoculation with B. oryzae. The treatments Si supply and the spraying of ASM and Phi were effective in reducing the area under brown spot progress curve and the number of lesions per cm2 of leaf. Polyphenoloxidases activity was higher for plants supplied with Si. On plants sprayed with ASM, the activities of polyphenoloxidases, phenylalanine ammonia-lyases, chitinases, and β-1,3-glucanases increased. The spraying of plants with Phi did not increase the activities of the studied defense enzymes. Taken together, the results of this study indicated that brown spot symptoms can be greatly reduced with the use of Si, ASM, and Phi.
publishDate 2016
dc.date.none.fl_str_mv 2016-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052016000200212
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052016000200212
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1678-4499.281
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Instituto Agronômico de Campinas
publisher.none.fl_str_mv Instituto Agronômico de Campinas
dc.source.none.fl_str_mv Bragantia v.75 n.2 2016
reponame:Bragantia
instname:Instituto Agronômico de Campinas (IAC)
instacron:IAC
instname_str Instituto Agronômico de Campinas (IAC)
instacron_str IAC
institution IAC
reponame_str Bragantia
collection Bragantia
repository.name.fl_str_mv Bragantia - Instituto Agronômico de Campinas (IAC)
repository.mail.fl_str_mv bragantia@iac.sp.gov.br||bragantia@iac.sp.gov.br
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