Efficacy of 2, 6-di (t-butyl)-p-cresol (BHT) and the entomopathogenic fungus Purpureocillium lilacinum, to control Tribolium confusum and to reduce aflatoxin B1 in stored maize

Autores
Barra, Paula Sabina; Etcheverry, Miriam Graciela; Nesci, Andrea Verónica
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The objective of this study was to evaluate the effectiveness of the treatment with the entomopathogenic fungus Purpureocillium lilacinum and the antioxidant BHT alone or combined in sublethal doses and at different water activity (aW) levels, as insecticides and/or fungicide in sterile maize. Effect on accumulation of aflatoxin B1 (AFB1) was also evaluated. In addition, we studied the resilience of P. lilacinum in maize grains and the effect of the treatments on Aspergillus flavus populations and on Tribolium confusum, an insect pest vector of aflatoxigenic fungi. The combined treatment showed approximately 80% of insecticidal efficacy at all of the tested aW levels. A low incidence and prevention of contamination with A. flavus was observed in the live insects under all of the tested conditions. The A. flavus populations increased significantly at the end of the incubation period in all of the treatments. However, P. lilacinum populations showed no significant differences, when compared to the control treatment, in the presence of the toxigenic fungus. Maximum levels of AFB1 reduction (of around 90%) were observed after treating maize with the combination of P. lilacinum + BHT. Thus the obtained results prove that the treatment of combination was the most effective and show that it is a promising strategy for an integrated management of pests in stored maize.
Fil: Barra, Paula Sabina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Etcheverry, Miriam Graciela. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Nesci, Andrea Verónica. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina
Materia
AFLATOXIN B1
ANTIOXIDANT
ASPERGILLUS FLAVUS
PURPUREOCILLIUM LILACINUM
STORED MAIZE
TRIBOLIUM CONFUSUM
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/50137
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Efficacy of 2, 6-di (t-butyl)-p-cresol (BHT) and the entomopathogenic fungus Purpureocillium lilacinum, to control Tribolium confusum and to reduce aflatoxin B1 in stored maizeBarra, Paula SabinaEtcheverry, Miriam GracielaNesci, Andrea VerónicaAFLATOXIN B1ANTIOXIDANTASPERGILLUS FLAVUSPURPUREOCILLIUM LILACINUMSTORED MAIZETRIBOLIUM CONFUSUMhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The objective of this study was to evaluate the effectiveness of the treatment with the entomopathogenic fungus Purpureocillium lilacinum and the antioxidant BHT alone or combined in sublethal doses and at different water activity (aW) levels, as insecticides and/or fungicide in sterile maize. Effect on accumulation of aflatoxin B1 (AFB1) was also evaluated. In addition, we studied the resilience of P. lilacinum in maize grains and the effect of the treatments on Aspergillus flavus populations and on Tribolium confusum, an insect pest vector of aflatoxigenic fungi. The combined treatment showed approximately 80% of insecticidal efficacy at all of the tested aW levels. A low incidence and prevention of contamination with A. flavus was observed in the live insects under all of the tested conditions. The A. flavus populations increased significantly at the end of the incubation period in all of the treatments. However, P. lilacinum populations showed no significant differences, when compared to the control treatment, in the presence of the toxigenic fungus. Maximum levels of AFB1 reduction (of around 90%) were observed after treating maize with the combination of P. lilacinum + BHT. Thus the obtained results prove that the treatment of combination was the most effective and show that it is a promising strategy for an integrated management of pests in stored maize.Fil: Barra, Paula Sabina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Etcheverry, Miriam Graciela. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Nesci, Andrea Verónica. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; ArgentinaPergamon-Elsevier Science Ltd2015-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/50137Barra, Paula Sabina; Etcheverry, Miriam Graciela; Nesci, Andrea Verónica; Efficacy of 2, 6-di (t-butyl)-p-cresol (BHT) and the entomopathogenic fungus Purpureocillium lilacinum, to control Tribolium confusum and to reduce aflatoxin B1 in stored maize; Pergamon-Elsevier Science Ltd; Journal of Stored Products Research; 64; 10-2015; 72-790022-474XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jspr.2015.09.003info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0022474X15300357info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:35:01Zoai:ri.conicet.gov.ar:11336/50137instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:35:02.101CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Efficacy of 2, 6-di (t-butyl)-p-cresol (BHT) and the entomopathogenic fungus Purpureocillium lilacinum, to control Tribolium confusum and to reduce aflatoxin B1 in stored maize
title Efficacy of 2, 6-di (t-butyl)-p-cresol (BHT) and the entomopathogenic fungus Purpureocillium lilacinum, to control Tribolium confusum and to reduce aflatoxin B1 in stored maize
spellingShingle Efficacy of 2, 6-di (t-butyl)-p-cresol (BHT) and the entomopathogenic fungus Purpureocillium lilacinum, to control Tribolium confusum and to reduce aflatoxin B1 in stored maize
Barra, Paula Sabina
AFLATOXIN B1
ANTIOXIDANT
ASPERGILLUS FLAVUS
PURPUREOCILLIUM LILACINUM
STORED MAIZE
TRIBOLIUM CONFUSUM
title_short Efficacy of 2, 6-di (t-butyl)-p-cresol (BHT) and the entomopathogenic fungus Purpureocillium lilacinum, to control Tribolium confusum and to reduce aflatoxin B1 in stored maize
title_full Efficacy of 2, 6-di (t-butyl)-p-cresol (BHT) and the entomopathogenic fungus Purpureocillium lilacinum, to control Tribolium confusum and to reduce aflatoxin B1 in stored maize
title_fullStr Efficacy of 2, 6-di (t-butyl)-p-cresol (BHT) and the entomopathogenic fungus Purpureocillium lilacinum, to control Tribolium confusum and to reduce aflatoxin B1 in stored maize
title_full_unstemmed Efficacy of 2, 6-di (t-butyl)-p-cresol (BHT) and the entomopathogenic fungus Purpureocillium lilacinum, to control Tribolium confusum and to reduce aflatoxin B1 in stored maize
title_sort Efficacy of 2, 6-di (t-butyl)-p-cresol (BHT) and the entomopathogenic fungus Purpureocillium lilacinum, to control Tribolium confusum and to reduce aflatoxin B1 in stored maize
dc.creator.none.fl_str_mv Barra, Paula Sabina
Etcheverry, Miriam Graciela
Nesci, Andrea Verónica
author Barra, Paula Sabina
author_facet Barra, Paula Sabina
Etcheverry, Miriam Graciela
Nesci, Andrea Verónica
author_role author
author2 Etcheverry, Miriam Graciela
Nesci, Andrea Verónica
author2_role author
author
dc.subject.none.fl_str_mv AFLATOXIN B1
ANTIOXIDANT
ASPERGILLUS FLAVUS
PURPUREOCILLIUM LILACINUM
STORED MAIZE
TRIBOLIUM CONFUSUM
topic AFLATOXIN B1
ANTIOXIDANT
ASPERGILLUS FLAVUS
PURPUREOCILLIUM LILACINUM
STORED MAIZE
TRIBOLIUM CONFUSUM
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The objective of this study was to evaluate the effectiveness of the treatment with the entomopathogenic fungus Purpureocillium lilacinum and the antioxidant BHT alone or combined in sublethal doses and at different water activity (aW) levels, as insecticides and/or fungicide in sterile maize. Effect on accumulation of aflatoxin B1 (AFB1) was also evaluated. In addition, we studied the resilience of P. lilacinum in maize grains and the effect of the treatments on Aspergillus flavus populations and on Tribolium confusum, an insect pest vector of aflatoxigenic fungi. The combined treatment showed approximately 80% of insecticidal efficacy at all of the tested aW levels. A low incidence and prevention of contamination with A. flavus was observed in the live insects under all of the tested conditions. The A. flavus populations increased significantly at the end of the incubation period in all of the treatments. However, P. lilacinum populations showed no significant differences, when compared to the control treatment, in the presence of the toxigenic fungus. Maximum levels of AFB1 reduction (of around 90%) were observed after treating maize with the combination of P. lilacinum + BHT. Thus the obtained results prove that the treatment of combination was the most effective and show that it is a promising strategy for an integrated management of pests in stored maize.
Fil: Barra, Paula Sabina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Etcheverry, Miriam Graciela. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Nesci, Andrea Verónica. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina
description The objective of this study was to evaluate the effectiveness of the treatment with the entomopathogenic fungus Purpureocillium lilacinum and the antioxidant BHT alone or combined in sublethal doses and at different water activity (aW) levels, as insecticides and/or fungicide in sterile maize. Effect on accumulation of aflatoxin B1 (AFB1) was also evaluated. In addition, we studied the resilience of P. lilacinum in maize grains and the effect of the treatments on Aspergillus flavus populations and on Tribolium confusum, an insect pest vector of aflatoxigenic fungi. The combined treatment showed approximately 80% of insecticidal efficacy at all of the tested aW levels. A low incidence and prevention of contamination with A. flavus was observed in the live insects under all of the tested conditions. The A. flavus populations increased significantly at the end of the incubation period in all of the treatments. However, P. lilacinum populations showed no significant differences, when compared to the control treatment, in the presence of the toxigenic fungus. Maximum levels of AFB1 reduction (of around 90%) were observed after treating maize with the combination of P. lilacinum + BHT. Thus the obtained results prove that the treatment of combination was the most effective and show that it is a promising strategy for an integrated management of pests in stored maize.
publishDate 2015
dc.date.none.fl_str_mv 2015-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/50137
Barra, Paula Sabina; Etcheverry, Miriam Graciela; Nesci, Andrea Verónica; Efficacy of 2, 6-di (t-butyl)-p-cresol (BHT) and the entomopathogenic fungus Purpureocillium lilacinum, to control Tribolium confusum and to reduce aflatoxin B1 in stored maize; Pergamon-Elsevier Science Ltd; Journal of Stored Products Research; 64; 10-2015; 72-79
0022-474X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/50137
identifier_str_mv Barra, Paula Sabina; Etcheverry, Miriam Graciela; Nesci, Andrea Verónica; Efficacy of 2, 6-di (t-butyl)-p-cresol (BHT) and the entomopathogenic fungus Purpureocillium lilacinum, to control Tribolium confusum and to reduce aflatoxin B1 in stored maize; Pergamon-Elsevier Science Ltd; Journal of Stored Products Research; 64; 10-2015; 72-79
0022-474X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jspr.2015.09.003
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0022474X15300357
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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