Resistance inducing agents on the biology and probing behaviour of the greenbug in wheat
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , |
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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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 |
_version_ |
1807835052122308608 |