Mating Type of Native Aspergillus flavus Strains Causing Corn Ear Rot in Argentina

Autores
Ruiz Posse, Agustina María; Torrico Ramallo, Ada Karina; Barontini, Javier Miguel; Camiletti, Boris Xavier
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fungi of the Aspergillus genus, particularly A. flavus, pose a significant threat to maize crops as they can produce toxic and carcinogenic aflatoxin compounds. This study focused on identifying the sexual mating types, MAT1-1 and MAT1-2, through PCR in A. flavus strains isolated from maize ears in two agricultural regions of Argentina—one subtropical and the other temperate—from the 2012/13 to the 2020/21 growing season. A total of 81 strains were analyzed, revealing a higher frequency of the MAT1-1 type in both regions (69%) and in the seasons with the highest number of strains collected. The MAT1-1 strains included 63% non-aflatoxigenic and 37% aflatoxin producers, predominantly lacking sclerotia production (69%), while MAT1-2 strains were mostly aflatoxin producers (82%) and S-sclerotia producers (48%). Additionally, more vegetative compatibility groups were identified as MAT1-1 (4 out of 6) than MAT1-2. These findings suggest that the use of MAT1-1 strains as biocontrol agents could maintain the stability of natural populations and reduce aflatoxin production, minimizing risks to crops. This underscores the importance of evaluating the genetic structure of A. flavus populations to implement effective biological control strategies.
Fil: Ruiz Posse, Agustina María. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigaciones Agropecuarias. Unidad de Fitopatología y Modelización Agrícola - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Unidad de Fitopatología y Modelización Agrícola; Argentina
Fil: Torrico Ramallo, Ada Karina. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigaciones Agropecuarias. Unidad de Fitopatología y Modelización Agrícola - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Unidad de Fitopatología y Modelización Agrícola; Argentina
Fil: Barontini, Javier Miguel. Universidad Nacional de Cuyo. Facultad de Cs.agrarias. Departamento de Cs. Biológicas. Cátedra de Fitopatologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina
Fil: Camiletti, Boris Xavier. University of Illinois; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
BIOLOGICAL CONTROL
ATOXIGENIC STRAINS
MYCOTOXIN CONTROL
IDIOMORPH
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/252036
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Mating Type of Native Aspergillus flavus Strains Causing Corn Ear Rot in ArgentinaRuiz Posse, Agustina MaríaTorrico Ramallo, Ada KarinaBarontini, Javier MiguelCamiletti, Boris XavierBIOLOGICAL CONTROLATOXIGENIC STRAINSMYCOTOXIN CONTROLIDIOMORPHhttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4Fungi of the Aspergillus genus, particularly A. flavus, pose a significant threat to maize crops as they can produce toxic and carcinogenic aflatoxin compounds. This study focused on identifying the sexual mating types, MAT1-1 and MAT1-2, through PCR in A. flavus strains isolated from maize ears in two agricultural regions of Argentina—one subtropical and the other temperate—from the 2012/13 to the 2020/21 growing season. A total of 81 strains were analyzed, revealing a higher frequency of the MAT1-1 type in both regions (69%) and in the seasons with the highest number of strains collected. The MAT1-1 strains included 63% non-aflatoxigenic and 37% aflatoxin producers, predominantly lacking sclerotia production (69%), while MAT1-2 strains were mostly aflatoxin producers (82%) and S-sclerotia producers (48%). Additionally, more vegetative compatibility groups were identified as MAT1-1 (4 out of 6) than MAT1-2. These findings suggest that the use of MAT1-1 strains as biocontrol agents could maintain the stability of natural populations and reduce aflatoxin production, minimizing risks to crops. This underscores the importance of evaluating the genetic structure of A. flavus populations to implement effective biological control strategies.Fil: Ruiz Posse, Agustina María. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigaciones Agropecuarias. Unidad de Fitopatología y Modelización Agrícola - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Unidad de Fitopatología y Modelización Agrícola; ArgentinaFil: Torrico Ramallo, Ada Karina. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigaciones Agropecuarias. Unidad de Fitopatología y Modelización Agrícola - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Unidad de Fitopatología y Modelización Agrícola; ArgentinaFil: Barontini, Javier Miguel. Universidad Nacional de Cuyo. Facultad de Cs.agrarias. Departamento de Cs. Biológicas. Cátedra de Fitopatologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; ArgentinaFil: Camiletti, Boris Xavier. University of Illinois; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaMDPI2024-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/252036Ruiz Posse, Agustina María; Torrico Ramallo, Ada Karina; Barontini, Javier Miguel; Camiletti, Boris Xavier; Mating Type of Native Aspergillus flavus Strains Causing Corn Ear Rot in Argentina; MDPI; Agronomy; 14; 12; 12-2024; 1-122073-4395CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2073-4395/14/12/2962info:eu-repo/semantics/altIdentifier/doi/10.3390/agronomy14122962info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:49:31Zoai:ri.conicet.gov.ar:11336/252036instacron: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 09:49:31.584CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Mating Type of Native Aspergillus flavus Strains Causing Corn Ear Rot in Argentina
title Mating Type of Native Aspergillus flavus Strains Causing Corn Ear Rot in Argentina
spellingShingle Mating Type of Native Aspergillus flavus Strains Causing Corn Ear Rot in Argentina
Ruiz Posse, Agustina María
BIOLOGICAL CONTROL
ATOXIGENIC STRAINS
MYCOTOXIN CONTROL
IDIOMORPH
title_short Mating Type of Native Aspergillus flavus Strains Causing Corn Ear Rot in Argentina
title_full Mating Type of Native Aspergillus flavus Strains Causing Corn Ear Rot in Argentina
title_fullStr Mating Type of Native Aspergillus flavus Strains Causing Corn Ear Rot in Argentina
title_full_unstemmed Mating Type of Native Aspergillus flavus Strains Causing Corn Ear Rot in Argentina
title_sort Mating Type of Native Aspergillus flavus Strains Causing Corn Ear Rot in Argentina
dc.creator.none.fl_str_mv Ruiz Posse, Agustina María
Torrico Ramallo, Ada Karina
Barontini, Javier Miguel
Camiletti, Boris Xavier
author Ruiz Posse, Agustina María
author_facet Ruiz Posse, Agustina María
Torrico Ramallo, Ada Karina
Barontini, Javier Miguel
Camiletti, Boris Xavier
author_role author
author2 Torrico Ramallo, Ada Karina
Barontini, Javier Miguel
Camiletti, Boris Xavier
author2_role author
author
author
dc.subject.none.fl_str_mv BIOLOGICAL CONTROL
ATOXIGENIC STRAINS
MYCOTOXIN CONTROL
IDIOMORPH
topic BIOLOGICAL CONTROL
ATOXIGENIC STRAINS
MYCOTOXIN CONTROL
IDIOMORPH
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv Fungi of the Aspergillus genus, particularly A. flavus, pose a significant threat to maize crops as they can produce toxic and carcinogenic aflatoxin compounds. This study focused on identifying the sexual mating types, MAT1-1 and MAT1-2, through PCR in A. flavus strains isolated from maize ears in two agricultural regions of Argentina—one subtropical and the other temperate—from the 2012/13 to the 2020/21 growing season. A total of 81 strains were analyzed, revealing a higher frequency of the MAT1-1 type in both regions (69%) and in the seasons with the highest number of strains collected. The MAT1-1 strains included 63% non-aflatoxigenic and 37% aflatoxin producers, predominantly lacking sclerotia production (69%), while MAT1-2 strains were mostly aflatoxin producers (82%) and S-sclerotia producers (48%). Additionally, more vegetative compatibility groups were identified as MAT1-1 (4 out of 6) than MAT1-2. These findings suggest that the use of MAT1-1 strains as biocontrol agents could maintain the stability of natural populations and reduce aflatoxin production, minimizing risks to crops. This underscores the importance of evaluating the genetic structure of A. flavus populations to implement effective biological control strategies.
Fil: Ruiz Posse, Agustina María. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigaciones Agropecuarias. Unidad de Fitopatología y Modelización Agrícola - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Unidad de Fitopatología y Modelización Agrícola; Argentina
Fil: Torrico Ramallo, Ada Karina. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigaciones Agropecuarias. Unidad de Fitopatología y Modelización Agrícola - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Unidad de Fitopatología y Modelización Agrícola; Argentina
Fil: Barontini, Javier Miguel. Universidad Nacional de Cuyo. Facultad de Cs.agrarias. Departamento de Cs. Biológicas. Cátedra de Fitopatologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina
Fil: Camiletti, Boris Xavier. University of Illinois; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Fungi of the Aspergillus genus, particularly A. flavus, pose a significant threat to maize crops as they can produce toxic and carcinogenic aflatoxin compounds. This study focused on identifying the sexual mating types, MAT1-1 and MAT1-2, through PCR in A. flavus strains isolated from maize ears in two agricultural regions of Argentina—one subtropical and the other temperate—from the 2012/13 to the 2020/21 growing season. A total of 81 strains were analyzed, revealing a higher frequency of the MAT1-1 type in both regions (69%) and in the seasons with the highest number of strains collected. The MAT1-1 strains included 63% non-aflatoxigenic and 37% aflatoxin producers, predominantly lacking sclerotia production (69%), while MAT1-2 strains were mostly aflatoxin producers (82%) and S-sclerotia producers (48%). Additionally, more vegetative compatibility groups were identified as MAT1-1 (4 out of 6) than MAT1-2. These findings suggest that the use of MAT1-1 strains as biocontrol agents could maintain the stability of natural populations and reduce aflatoxin production, minimizing risks to crops. This underscores the importance of evaluating the genetic structure of A. flavus populations to implement effective biological control strategies.
publishDate 2024
dc.date.none.fl_str_mv 2024-12
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/11336/252036
Ruiz Posse, Agustina María; Torrico Ramallo, Ada Karina; Barontini, Javier Miguel; Camiletti, Boris Xavier; Mating Type of Native Aspergillus flavus Strains Causing Corn Ear Rot in Argentina; MDPI; Agronomy; 14; 12; 12-2024; 1-12
2073-4395
CONICET Digital
CONICET
url http://hdl.handle.net/11336/252036
identifier_str_mv Ruiz Posse, Agustina María; Torrico Ramallo, Ada Karina; Barontini, Javier Miguel; Camiletti, Boris Xavier; Mating Type of Native Aspergillus flavus Strains Causing Corn Ear Rot in Argentina; MDPI; Agronomy; 14; 12; 12-2024; 1-12
2073-4395
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2073-4395/14/12/2962
info:eu-repo/semantics/altIdentifier/doi/10.3390/agronomy14122962
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
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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