Biological activity of Bt proteins expressed in different structures of transgenic corn against Spodoptera frugiperda

Detalhes bibliográficos
Autor(a) principal: Bernardi,Daniel
Data de Publicação: 2016
Outros Autores: Bernardi,Oderlei, Horikoshi,Renato Jun, Salmeron,Eloisa, Okuma,Daniela Miyuki, Omoto,Celso
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Ciência Rural
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000601019
Resumo: ABSTRACT: Spodoptera frugiperda (J. E. Smith) is the main target pest of Bt corn technologies, such as YieldGard VT PRO(tm) (Cry1A.105/Cry2Ab2) and PowerCore(tm) (Cry1A.105/Cry2Ab2/Cry1F). In this study, it was evaluated the biological activity of Bt proteins expressed in different plant structures of YieldGard VT PRO(tm) and PowerCore(tm) corn against S. frugiperda . Complete mortality of S. frugiperda neonates was observed on leaf-disc of both Bt corn technologies. However, the mortality in silks and grains was lower than 50 and 6%, respectively. In addition, more than 49% of the surviving larvae in silks and grains completed the biological cycle. However, all life table parameters were negatively affected in insects that developed in silks and grains of both Bt corn events. In summary, the low biological activity of Bt proteins expressed on silks and grains of YieldGard VT PRO(tm) and PowerCore(tm) corn can contribute to the resistance evolution in S. frugiperda populations.
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spelling Biological activity of Bt proteins expressed in different structures of transgenic corn against Spodoptera frugiperdafall armywormBacillus thuringiensisBt corninsect resistance managementABSTRACT: Spodoptera frugiperda (J. E. Smith) is the main target pest of Bt corn technologies, such as YieldGard VT PRO(tm) (Cry1A.105/Cry2Ab2) and PowerCore(tm) (Cry1A.105/Cry2Ab2/Cry1F). In this study, it was evaluated the biological activity of Bt proteins expressed in different plant structures of YieldGard VT PRO(tm) and PowerCore(tm) corn against S. frugiperda . Complete mortality of S. frugiperda neonates was observed on leaf-disc of both Bt corn technologies. However, the mortality in silks and grains was lower than 50 and 6%, respectively. In addition, more than 49% of the surviving larvae in silks and grains completed the biological cycle. However, all life table parameters were negatively affected in insects that developed in silks and grains of both Bt corn events. In summary, the low biological activity of Bt proteins expressed on silks and grains of YieldGard VT PRO(tm) and PowerCore(tm) corn can contribute to the resistance evolution in S. frugiperda populations.Universidade Federal de Santa Maria2016-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000601019Ciência Rural v.46 n.6 2016reponame:Ciência Ruralinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM10.1590/0103-8478cr20150047info:eu-repo/semantics/openAccessBernardi,DanielBernardi,OderleiHorikoshi,Renato JunSalmeron,EloisaOkuma,Daniela MiyukiOmoto,Celsoeng2016-05-03T00:00:00ZRevista
dc.title.none.fl_str_mv Biological activity of Bt proteins expressed in different structures of transgenic corn against Spodoptera frugiperda
title Biological activity of Bt proteins expressed in different structures of transgenic corn against Spodoptera frugiperda
spellingShingle Biological activity of Bt proteins expressed in different structures of transgenic corn against Spodoptera frugiperda
Bernardi,Daniel
fall armyworm
Bacillus thuringiensis
Bt corn
insect resistance management
title_short Biological activity of Bt proteins expressed in different structures of transgenic corn against Spodoptera frugiperda
title_full Biological activity of Bt proteins expressed in different structures of transgenic corn against Spodoptera frugiperda
title_fullStr Biological activity of Bt proteins expressed in different structures of transgenic corn against Spodoptera frugiperda
title_full_unstemmed Biological activity of Bt proteins expressed in different structures of transgenic corn against Spodoptera frugiperda
title_sort Biological activity of Bt proteins expressed in different structures of transgenic corn against Spodoptera frugiperda
author Bernardi,Daniel
author_facet Bernardi,Daniel
Bernardi,Oderlei
Horikoshi,Renato Jun
Salmeron,Eloisa
Okuma,Daniela Miyuki
Omoto,Celso
author_role author
author2 Bernardi,Oderlei
Horikoshi,Renato Jun
Salmeron,Eloisa
Okuma,Daniela Miyuki
Omoto,Celso
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Bernardi,Daniel
Bernardi,Oderlei
Horikoshi,Renato Jun
Salmeron,Eloisa
Okuma,Daniela Miyuki
Omoto,Celso
dc.subject.por.fl_str_mv fall armyworm
Bacillus thuringiensis
Bt corn
insect resistance management
topic fall armyworm
Bacillus thuringiensis
Bt corn
insect resistance management
description ABSTRACT: Spodoptera frugiperda (J. E. Smith) is the main target pest of Bt corn technologies, such as YieldGard VT PRO(tm) (Cry1A.105/Cry2Ab2) and PowerCore(tm) (Cry1A.105/Cry2Ab2/Cry1F). In this study, it was evaluated the biological activity of Bt proteins expressed in different plant structures of YieldGard VT PRO(tm) and PowerCore(tm) corn against S. frugiperda . Complete mortality of S. frugiperda neonates was observed on leaf-disc of both Bt corn technologies. However, the mortality in silks and grains was lower than 50 and 6%, respectively. In addition, more than 49% of the surviving larvae in silks and grains completed the biological cycle. However, all life table parameters were negatively affected in insects that developed in silks and grains of both Bt corn events. In summary, the low biological activity of Bt proteins expressed on silks and grains of YieldGard VT PRO(tm) and PowerCore(tm) corn can contribute to the resistance evolution in S. frugiperda populations.
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=S0103-84782016000601019
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000601019
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0103-8478cr20150047
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 Universidade Federal de Santa Maria
publisher.none.fl_str_mv Universidade Federal de Santa Maria
dc.source.none.fl_str_mv Ciência Rural v.46 n.6 2016
reponame:Ciência Rural
instname:Universidade Federal de Santa Maria (UFSM)
instacron:UFSM
instname_str Universidade Federal de Santa Maria (UFSM)
instacron_str UFSM
institution UFSM
reponame_str Ciência Rural
collection Ciência Rural
repository.name.fl_str_mv
repository.mail.fl_str_mv
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