Resistance inducing agents on the biology and probing behaviour of the greenbug in wheat

Detalhes bibliográficos
Autor(a) principal: Pereira, Rosane Rodrigues Costa
Data de Publicação: 2010
Outros Autores: Moraes, Jair Campos, Prado, Ernesto, Dacosta, Ronelza Rodrigues
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/37677
Resumo: The greenbug Schizaphis graminum (Rond.) (Hemiptera: Aphididae) is one of the main pestinsects of wheat (Triticum aestivum, L.). Resistance inducing agents as silicon (Si) and acibenzolar-s-methyl (ASM) can provide some protection against insects and diseases. The effect of Si and/or ASM on the development and probing behaviour of S. graminum in wheat plants was evaluated. Wheat plants (cultivar Embrapa 22) were treated with Si (silicic acid at the rate of 1%) and acibenzolar-S-methyl (ASM) at the rate of 0.5%. The effects of these treatments on greenbugs were analyzed by development parameters, honeydew excretion and probing behavior monitored by Electrical Penetration Graphs (EPG). The development and honeydew experiments consisted of ten replications each and EPG experiment was replicated 25 times. The application of both resistance inducing agents reduced fecundity, prolonged the duration of pre-reproductive period, and decreased honeydew production. Induced resistance was localized mainly at phloem level and caused a strong reduction of phloem sap ingestion, but some effect of ASM at parenchyma/mesophyll level could not be discounted as far fewer aphids reached the sieve elements.
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spelling Resistance inducing agents on the biology and probing behaviour of the greenbug in wheatAgentes indutores de resistência na biologia e no comportamento alimentar do pulgão-verde em trigoSchizaphis graminum - Comportamento alimentarSchizaphis graminum - Feeding behaviorThe greenbug Schizaphis graminum (Rond.) (Hemiptera: Aphididae) is one of the main pestinsects of wheat (Triticum aestivum, L.). Resistance inducing agents as silicon (Si) and acibenzolar-s-methyl (ASM) can provide some protection against insects and diseases. The effect of Si and/or ASM on the development and probing behaviour of S. graminum in wheat plants was evaluated. Wheat plants (cultivar Embrapa 22) were treated with Si (silicic acid at the rate of 1%) and acibenzolar-S-methyl (ASM) at the rate of 0.5%. The effects of these treatments on greenbugs were analyzed by development parameters, honeydew excretion and probing behavior monitored by Electrical Penetration Graphs (EPG). The development and honeydew experiments consisted of ten replications each and EPG experiment was replicated 25 times. The application of both resistance inducing agents reduced fecundity, prolonged the duration of pre-reproductive period, and decreased honeydew production. Induced resistance was localized mainly at phloem level and caused a strong reduction of phloem sap ingestion, but some effect of ASM at parenchyma/mesophyll level could not be discounted as far fewer aphids reached the sieve elements.O pulgão-verde Schizaphis graminum (Rond.) (Hemiptera: Aphididae) é um dos principais insetos- praga da cultura do trigo (Triticum aestivum, L.). Agentes que induzem resistência como silício e acibenzolars-methyl (ASM) podem fornecer proteção às plantas contra insetos e doenças. Avaliou-se o efeito do silício e/ ou ASM no desenvolvimento e comportamento alimentar de S. graminum em plantas de trigo. Plantas de trigo cultivar Embrapa 22 foram tratadas com silício (ácido silícico a 1%) e acibenzolar-S-methyl (ASM) a 0.5%. Os parâmetros estudados foram biologia, excreção de honeydew e comportamento alimentar (de prova) monitorado por meio da técnica Electrical Penetration Graphs (EPG). Para o estudo de biologia e excreção de honeydew foram usadas dez repetições e 25 para EPG. A aplicação de agentes indutores de resistência reduziu o número de ninfas, prolongando a duração de período de pré-reprodutivo e o número de gotas de honeydew. O efeito de resistência foi localizado principalmente no floema, com redução de ingestão de seiva elaborada.Escola Superior de Agricultura "Luiz de Queiroz"2019-11-14T16:51:57Z2019-11-14T16:51:57Z2010-07info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfPEREIRA, R. R. C.; MORAIS, J. C.; PRADO, E.; DACOSTA, R. R. Resistance inducing agents on the biology and probing behaviour of the greenbug in wheat. Scientia Agricola, Piracicaba, v. 67, n. 4, p. 430-434, July/Aug. 2010.http://repositorio.ufla.br/jspui/handle/1/37677Scientia Agricolareponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessPereira, Rosane Rodrigues CostaMoraes, Jair CamposPrado, ErnestoDacosta, Ronelza Rodrigueseng2019-11-14T16:51:57Zoai:localhost:1/37677Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2019-11-14T16:51:57Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Resistance inducing agents on the biology and probing behaviour of the greenbug in wheat
Agentes indutores de resistência na biologia e no comportamento alimentar do pulgão-verde em trigo
title Resistance inducing agents on the biology and probing behaviour of the greenbug in wheat
spellingShingle Resistance inducing agents on the biology and probing behaviour of the greenbug in wheat
Pereira, Rosane Rodrigues Costa
Schizaphis graminum - Comportamento alimentar
Schizaphis graminum - Feeding behavior
title_short Resistance inducing agents on the biology and probing behaviour of the greenbug in wheat
title_full Resistance inducing agents on the biology and probing behaviour of the greenbug in wheat
title_fullStr Resistance inducing agents on the biology and probing behaviour of the greenbug in wheat
title_full_unstemmed Resistance inducing agents on the biology and probing behaviour of the greenbug in wheat
title_sort Resistance inducing agents on the biology and probing behaviour of the greenbug in wheat
author Pereira, Rosane Rodrigues Costa
author_facet Pereira, Rosane Rodrigues Costa
Moraes, Jair Campos
Prado, Ernesto
Dacosta, Ronelza Rodrigues
author_role author
author2 Moraes, Jair Campos
Prado, Ernesto
Dacosta, Ronelza Rodrigues
author2_role author
author
author
dc.contributor.author.fl_str_mv Pereira, Rosane Rodrigues Costa
Moraes, Jair Campos
Prado, Ernesto
Dacosta, Ronelza Rodrigues
dc.subject.por.fl_str_mv Schizaphis graminum - Comportamento alimentar
Schizaphis graminum - Feeding behavior
topic Schizaphis graminum - Comportamento alimentar
Schizaphis graminum - Feeding behavior
description The greenbug Schizaphis graminum (Rond.) (Hemiptera: Aphididae) is one of the main pestinsects of wheat (Triticum aestivum, L.). Resistance inducing agents as silicon (Si) and acibenzolar-s-methyl (ASM) can provide some protection against insects and diseases. The effect of Si and/or ASM on the development and probing behaviour of S. graminum in wheat plants was evaluated. Wheat plants (cultivar Embrapa 22) were treated with Si (silicic acid at the rate of 1%) and acibenzolar-S-methyl (ASM) at the rate of 0.5%. The effects of these treatments on greenbugs were analyzed by development parameters, honeydew excretion and probing behavior monitored by Electrical Penetration Graphs (EPG). The development and honeydew experiments consisted of ten replications each and EPG experiment was replicated 25 times. The application of both resistance inducing agents reduced fecundity, prolonged the duration of pre-reproductive period, and decreased honeydew production. Induced resistance was localized mainly at phloem level and caused a strong reduction of phloem sap ingestion, but some effect of ASM at parenchyma/mesophyll level could not be discounted as far fewer aphids reached the sieve elements.
publishDate 2010
dc.date.none.fl_str_mv 2010-07
2019-11-14T16:51:57Z
2019-11-14T16:51:57Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv PEREIRA, R. R. C.; MORAIS, J. C.; PRADO, E.; DACOSTA, R. R. Resistance inducing agents on the biology and probing behaviour of the greenbug in wheat. Scientia Agricola, Piracicaba, v. 67, n. 4, p. 430-434, July/Aug. 2010.
http://repositorio.ufla.br/jspui/handle/1/37677
identifier_str_mv PEREIRA, R. R. C.; MORAIS, J. C.; PRADO, E.; DACOSTA, R. R. Resistance inducing agents on the biology and probing behaviour of the greenbug in wheat. Scientia Agricola, Piracicaba, v. 67, n. 4, p. 430-434, July/Aug. 2010.
url http://repositorio.ufla.br/jspui/handle/1/37677
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
dc.source.none.fl_str_mv Scientia Agricola
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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