Survival and nutritional indexes of Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae) maintained in Bt maize for five generations
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.5039/agraria.v14i2a5629 http://hdl.handle.net/11449/194960 |
Resumo: | The selection pressure generated by the incorrect use of Bt maize might result in Spodoptera frugiperda individuals resistant to the toxins synthesized by the plant. In this study was evaluated the nutritional parameters of Spodoptera frugiperda submitted to the maize that synthesize the toxins Cry1F, Cry1A105-Cry2Ab2 and Vip3Aa20, during five subsequent generations of selection pressure. The caterpillars were submitted to the treatments: Non-Bt maize (CONV), Cry1F (Bt1), Cry1A105/Cry2Ab (Bt2) and Vip3Aa20 (VIP1, VIP2 and VIP3) and exposed for a period of four days in each cycle, for five successive generations. The larval survival of S. frugiperda was evaluated in five generations. The consumed leaf area was quantified in the second generation and the nutritional indexes in the latter ones. The results indicate that caterpillars of S. frugiperda from VIPs lineage presented the lowest percentage of survival, with a high Metabolic Cost and a considerable efficiency reduction in the conversion of the digested and ingested food. The lineage maintained in VIP2 showed the lowest leaf consumption (83.13%). However, the action of Vip3Aa20 toxin on S. frugiperda resulted in a higher Metabolic Cost in reduction of leaf area consumption. However, from the third generation on there is a survival of insects exposed to Bt toxins, suggesting the surviving potential of this species in Bt maize subjected to continuous exposure to this technology. |
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Survival and nutritional indexes of Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae) maintained in Bt maize for five generationsBt resistanceCry toxinsfall armywormnutritional indexesVip3Aa20The selection pressure generated by the incorrect use of Bt maize might result in Spodoptera frugiperda individuals resistant to the toxins synthesized by the plant. In this study was evaluated the nutritional parameters of Spodoptera frugiperda submitted to the maize that synthesize the toxins Cry1F, Cry1A105-Cry2Ab2 and Vip3Aa20, during five subsequent generations of selection pressure. The caterpillars were submitted to the treatments: Non-Bt maize (CONV), Cry1F (Bt1), Cry1A105/Cry2Ab (Bt2) and Vip3Aa20 (VIP1, VIP2 and VIP3) and exposed for a period of four days in each cycle, for five successive generations. The larval survival of S. frugiperda was evaluated in five generations. The consumed leaf area was quantified in the second generation and the nutritional indexes in the latter ones. The results indicate that caterpillars of S. frugiperda from VIPs lineage presented the lowest percentage of survival, with a high Metabolic Cost and a considerable efficiency reduction in the conversion of the digested and ingested food. The lineage maintained in VIP2 showed the lowest leaf consumption (83.13%). However, the action of Vip3Aa20 toxin on S. frugiperda resulted in a higher Metabolic Cost in reduction of leaf area consumption. However, from the third generation on there is a survival of insects exposed to Bt toxins, suggesting the surviving potential of this species in Bt maize subjected to continuous exposure to this technology.DuPont Young Professor Grant programConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Research Support Foundation of Piaui State (FAPEPI)Univ Fed Piaui, Campus Prof Cinobelina Elvas, Bom Jesus, PI, BrazilUniv Estadual Paulista, Fac Engn Ilha Solteira, Ilha Solteira, SP, BrazilUniv Estadual Paulista, Fac Engn Ilha Solteira, Ilha Solteira, SP, BrazilUniv Federal Rural PernambucoUniv Fed PiauiUniversidade Estadual Paulista (Unesp)Silva, Luciana BarbozaMaggioni, KellenFerreira, Raimundo HenriqueSilva, Alexandre FariaPavan, Bruno Ettore [UNESP]Lopes, Gleidyane Novais2020-12-10T16:59:59Z2020-12-10T16:59:59Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article8http://dx.doi.org/10.5039/agraria.v14i2a5629Revista Brasileira De Ciencias Agrarias-agraria. Recife Pe: Univ Federal Rural Pernambuco, v. 14, n. 2, 8 p., 2019.1981-1160http://hdl.handle.net/11449/19496010.5039/agraria.v14i2a5629WOS:000495660500007Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Brasileira De Ciencias Agrarias-agrariainfo:eu-repo/semantics/openAccess2021-10-23T03:03:39Zoai:repositorio.unesp.br:11449/194960Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:33:45.079936Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Survival and nutritional indexes of Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae) maintained in Bt maize for five generations |
title |
Survival and nutritional indexes of Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae) maintained in Bt maize for five generations |
spellingShingle |
Survival and nutritional indexes of Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae) maintained in Bt maize for five generations Silva, Luciana Barboza Bt resistance Cry toxins fall armyworm nutritional indexes Vip3Aa20 |
title_short |
Survival and nutritional indexes of Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae) maintained in Bt maize for five generations |
title_full |
Survival and nutritional indexes of Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae) maintained in Bt maize for five generations |
title_fullStr |
Survival and nutritional indexes of Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae) maintained in Bt maize for five generations |
title_full_unstemmed |
Survival and nutritional indexes of Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae) maintained in Bt maize for five generations |
title_sort |
Survival and nutritional indexes of Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae) maintained in Bt maize for five generations |
author |
Silva, Luciana Barboza |
author_facet |
Silva, Luciana Barboza Maggioni, Kellen Ferreira, Raimundo Henrique Silva, Alexandre Faria Pavan, Bruno Ettore [UNESP] Lopes, Gleidyane Novais |
author_role |
author |
author2 |
Maggioni, Kellen Ferreira, Raimundo Henrique Silva, Alexandre Faria Pavan, Bruno Ettore [UNESP] Lopes, Gleidyane Novais |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Univ Fed Piaui Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Silva, Luciana Barboza Maggioni, Kellen Ferreira, Raimundo Henrique Silva, Alexandre Faria Pavan, Bruno Ettore [UNESP] Lopes, Gleidyane Novais |
dc.subject.por.fl_str_mv |
Bt resistance Cry toxins fall armyworm nutritional indexes Vip3Aa20 |
topic |
Bt resistance Cry toxins fall armyworm nutritional indexes Vip3Aa20 |
description |
The selection pressure generated by the incorrect use of Bt maize might result in Spodoptera frugiperda individuals resistant to the toxins synthesized by the plant. In this study was evaluated the nutritional parameters of Spodoptera frugiperda submitted to the maize that synthesize the toxins Cry1F, Cry1A105-Cry2Ab2 and Vip3Aa20, during five subsequent generations of selection pressure. The caterpillars were submitted to the treatments: Non-Bt maize (CONV), Cry1F (Bt1), Cry1A105/Cry2Ab (Bt2) and Vip3Aa20 (VIP1, VIP2 and VIP3) and exposed for a period of four days in each cycle, for five successive generations. The larval survival of S. frugiperda was evaluated in five generations. The consumed leaf area was quantified in the second generation and the nutritional indexes in the latter ones. The results indicate that caterpillars of S. frugiperda from VIPs lineage presented the lowest percentage of survival, with a high Metabolic Cost and a considerable efficiency reduction in the conversion of the digested and ingested food. The lineage maintained in VIP2 showed the lowest leaf consumption (83.13%). However, the action of Vip3Aa20 toxin on S. frugiperda resulted in a higher Metabolic Cost in reduction of leaf area consumption. However, from the third generation on there is a survival of insects exposed to Bt toxins, suggesting the surviving potential of this species in Bt maize subjected to continuous exposure to this technology. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-01 2020-12-10T16:59:59Z 2020-12-10T16:59:59Z |
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 |
http://dx.doi.org/10.5039/agraria.v14i2a5629 Revista Brasileira De Ciencias Agrarias-agraria. Recife Pe: Univ Federal Rural Pernambuco, v. 14, n. 2, 8 p., 2019. 1981-1160 http://hdl.handle.net/11449/194960 10.5039/agraria.v14i2a5629 WOS:000495660500007 |
url |
http://dx.doi.org/10.5039/agraria.v14i2a5629 http://hdl.handle.net/11449/194960 |
identifier_str_mv |
Revista Brasileira De Ciencias Agrarias-agraria. Recife Pe: Univ Federal Rural Pernambuco, v. 14, n. 2, 8 p., 2019. 1981-1160 10.5039/agraria.v14i2a5629 WOS:000495660500007 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Revista Brasileira De Ciencias Agrarias-agraria |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
8 |
dc.publisher.none.fl_str_mv |
Univ Federal Rural Pernambuco |
publisher.none.fl_str_mv |
Univ Federal Rural Pernambuco |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128532095696896 |