Effect of atrazine on growth and production of AFB1 in Aspergillus section Flavi strains isolated from maize soils

Autores
Benito, Nicolas; Carranza, Cecilia Soledad; Magnoli, Carina Elizabeth; Barberis, Carla Lorena
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Atrazine is one of the most frequently used herbicides in Argentina for controlling broadleaf weeds and annual grasses. Currently, there is limited information on the impact of triazine herbicides on mycotoxin production and growth parameters of toxigenic fungi in maize. The objective of this study was to evaluate the effect of different concentrations of atrazine on the lag phase prior to growth, the growth rate, and on production of aflatoxin B1 (AFB1) of Aspergillus flavus and Aspergillus parasiticus strains, on maize meal extract agar (MMEA) under different water activities (aW) and temperatures. A commercial formulation of atrazine was added to MMEA medium at 0, 5, 10, 50, or 100 mmol/l, adjusted to 0.98, 0.95, and 0.93 aW, and incubated at 28 °C and 37 °C for 21 days. AFB1 was determined by HPLC after 7, 14, and 21 days of incubation. In the control treatments, a significant increase in the time prior to growth was observed and as the aW decreased, at both temperatures, the growth rate of the strains also decreased. A significant increase in growth rate was observed as the concentration of atrazine in the medium increased, for all aW levels tested. The optimal conditions for the accumulation of AFB1 in the control treatments were 0.98 aW and 28 °C, after 7 days of incubation. As the concentration of herbicide increased, AFB1 production also increased (P < 0.05). These results add to the knowledge about consequences with regard to aflatoxin production of the use of excessive atrazine doses in extensive maize culture.
Fil: Benito, Nicolas. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigación en Micología y Micotoxicología. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigación en Micología y Micotoxicología; Argentina
Fil: Carranza, Cecilia Soledad. Ministerio de Ciencia. Tecnología e Innovación Productiva. Agencia Nacional de Promoción Científica y Tecnológica; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigación en Micología y Micotoxicología. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigación en Micología y Micotoxicología; Argentina
Fil: Magnoli, Carina Elizabeth. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigación en Micología y Micotoxicología. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigación en Micología y Micotoxicología; Argentina
Fil: Barberis, Carla Lorena. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigación en Micología y Micotoxicología. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigación en Micología y Micotoxicología; Argentina
Materia
ASPERGILLUS FLAVUS
ASPERGILLUS PARASITICUS
ATRAZINE
GROWTH PARAMETERS
PRODUCTION OF AFLATOXIN B1
TEMPERATURE
WATER ACTIVITY
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/103081
Acceder
id CONICETDig_5914508735cf4ac81669e2d7696c8ecd
oai_identifier_str oai:ri.conicet.gov.ar:11336/103081
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effect of atrazine on growth and production of AFB1 in Aspergillus section Flavi strains isolated from maize soilsBenito, NicolasCarranza, Cecilia SoledadMagnoli, Carina ElizabethBarberis, Carla LorenaASPERGILLUS FLAVUSASPERGILLUS PARASITICUSATRAZINEGROWTH PARAMETERSPRODUCTION OF AFLATOXIN B1TEMPERATUREWATER ACTIVITYhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Atrazine is one of the most frequently used herbicides in Argentina for controlling broadleaf weeds and annual grasses. Currently, there is limited information on the impact of triazine herbicides on mycotoxin production and growth parameters of toxigenic fungi in maize. The objective of this study was to evaluate the effect of different concentrations of atrazine on the lag phase prior to growth, the growth rate, and on production of aflatoxin B1 (AFB1) of Aspergillus flavus and Aspergillus parasiticus strains, on maize meal extract agar (MMEA) under different water activities (aW) and temperatures. A commercial formulation of atrazine was added to MMEA medium at 0, 5, 10, 50, or 100 mmol/l, adjusted to 0.98, 0.95, and 0.93 aW, and incubated at 28 °C and 37 °C for 21 days. AFB1 was determined by HPLC after 7, 14, and 21 days of incubation. In the control treatments, a significant increase in the time prior to growth was observed and as the aW decreased, at both temperatures, the growth rate of the strains also decreased. A significant increase in growth rate was observed as the concentration of atrazine in the medium increased, for all aW levels tested. The optimal conditions for the accumulation of AFB1 in the control treatments were 0.98 aW and 28 °C, after 7 days of incubation. As the concentration of herbicide increased, AFB1 production also increased (P < 0.05). These results add to the knowledge about consequences with regard to aflatoxin production of the use of excessive atrazine doses in extensive maize culture.Fil: Benito, Nicolas. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigación en Micología y Micotoxicología. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigación en Micología y Micotoxicología; ArgentinaFil: Carranza, Cecilia Soledad. Ministerio de Ciencia. Tecnología e Innovación Productiva. Agencia Nacional de Promoción Científica y Tecnológica; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigación en Micología y Micotoxicología. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigación en Micología y Micotoxicología; ArgentinaFil: Magnoli, Carina Elizabeth. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigación en Micología y Micotoxicología. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigación en Micología y Micotoxicología; ArgentinaFil: Barberis, Carla Lorena. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigación en Micología y Micotoxicología. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigación en Micología y Micotoxicología; ArgentinaSpringer Verlag2018-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/103081Benito, Nicolas; Carranza, Cecilia Soledad; Magnoli, Carina Elizabeth; Barberis, Carla Lorena; Effect of atrazine on growth and production of AFB1 in Aspergillus section Flavi strains isolated from maize soils; Springer Verlag; Mycotoxin Research; 35; 1; 9-2018; 55-641867-16320178-7888CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://link.springer.com/10.1007/s12550-018-0330-5info:eu-repo/semantics/altIdentifier/doi/10.1007/s12550-018-0330-5info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:49:46Zoai:ri.conicet.gov.ar:11336/103081instacron: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:34982025-09-03 09:49:46.737CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effect of atrazine on growth and production of AFB1 in Aspergillus section Flavi strains isolated from maize soils
title Effect of atrazine on growth and production of AFB1 in Aspergillus section Flavi strains isolated from maize soils
spellingShingle Effect of atrazine on growth and production of AFB1 in Aspergillus section Flavi strains isolated from maize soils
Benito, Nicolas
ASPERGILLUS FLAVUS
ASPERGILLUS PARASITICUS
ATRAZINE
GROWTH PARAMETERS
PRODUCTION OF AFLATOXIN B1
TEMPERATURE
WATER ACTIVITY
title_short Effect of atrazine on growth and production of AFB1 in Aspergillus section Flavi strains isolated from maize soils
title_full Effect of atrazine on growth and production of AFB1 in Aspergillus section Flavi strains isolated from maize soils
title_fullStr Effect of atrazine on growth and production of AFB1 in Aspergillus section Flavi strains isolated from maize soils
title_full_unstemmed Effect of atrazine on growth and production of AFB1 in Aspergillus section Flavi strains isolated from maize soils
title_sort Effect of atrazine on growth and production of AFB1 in Aspergillus section Flavi strains isolated from maize soils
dc.creator.none.fl_str_mv Benito, Nicolas
Carranza, Cecilia Soledad
Magnoli, Carina Elizabeth
Barberis, Carla Lorena
author Benito, Nicolas
author_facet Benito, Nicolas
Carranza, Cecilia Soledad
Magnoli, Carina Elizabeth
Barberis, Carla Lorena
author_role author
author2 Carranza, Cecilia Soledad
Magnoli, Carina Elizabeth
Barberis, Carla Lorena
author2_role author
author
author
dc.subject.none.fl_str_mv ASPERGILLUS FLAVUS
ASPERGILLUS PARASITICUS
ATRAZINE
GROWTH PARAMETERS
PRODUCTION OF AFLATOXIN B1
TEMPERATURE
WATER ACTIVITY
topic ASPERGILLUS FLAVUS
ASPERGILLUS PARASITICUS
ATRAZINE
GROWTH PARAMETERS
PRODUCTION OF AFLATOXIN B1
TEMPERATURE
WATER ACTIVITY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Atrazine is one of the most frequently used herbicides in Argentina for controlling broadleaf weeds and annual grasses. Currently, there is limited information on the impact of triazine herbicides on mycotoxin production and growth parameters of toxigenic fungi in maize. The objective of this study was to evaluate the effect of different concentrations of atrazine on the lag phase prior to growth, the growth rate, and on production of aflatoxin B1 (AFB1) of Aspergillus flavus and Aspergillus parasiticus strains, on maize meal extract agar (MMEA) under different water activities (aW) and temperatures. A commercial formulation of atrazine was added to MMEA medium at 0, 5, 10, 50, or 100 mmol/l, adjusted to 0.98, 0.95, and 0.93 aW, and incubated at 28 °C and 37 °C for 21 days. AFB1 was determined by HPLC after 7, 14, and 21 days of incubation. In the control treatments, a significant increase in the time prior to growth was observed and as the aW decreased, at both temperatures, the growth rate of the strains also decreased. A significant increase in growth rate was observed as the concentration of atrazine in the medium increased, for all aW levels tested. The optimal conditions for the accumulation of AFB1 in the control treatments were 0.98 aW and 28 °C, after 7 days of incubation. As the concentration of herbicide increased, AFB1 production also increased (P < 0.05). These results add to the knowledge about consequences with regard to aflatoxin production of the use of excessive atrazine doses in extensive maize culture.
Fil: Benito, Nicolas. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigación en Micología y Micotoxicología. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigación en Micología y Micotoxicología; Argentina
Fil: Carranza, Cecilia Soledad. Ministerio de Ciencia. Tecnología e Innovación Productiva. Agencia Nacional de Promoción Científica y Tecnológica; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigación en Micología y Micotoxicología. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigación en Micología y Micotoxicología; Argentina
Fil: Magnoli, Carina Elizabeth. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigación en Micología y Micotoxicología. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigación en Micología y Micotoxicología; Argentina
Fil: Barberis, Carla Lorena. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigación en Micología y Micotoxicología. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigación en Micología y Micotoxicología; Argentina
description Atrazine is one of the most frequently used herbicides in Argentina for controlling broadleaf weeds and annual grasses. Currently, there is limited information on the impact of triazine herbicides on mycotoxin production and growth parameters of toxigenic fungi in maize. The objective of this study was to evaluate the effect of different concentrations of atrazine on the lag phase prior to growth, the growth rate, and on production of aflatoxin B1 (AFB1) of Aspergillus flavus and Aspergillus parasiticus strains, on maize meal extract agar (MMEA) under different water activities (aW) and temperatures. A commercial formulation of atrazine was added to MMEA medium at 0, 5, 10, 50, or 100 mmol/l, adjusted to 0.98, 0.95, and 0.93 aW, and incubated at 28 °C and 37 °C for 21 days. AFB1 was determined by HPLC after 7, 14, and 21 days of incubation. In the control treatments, a significant increase in the time prior to growth was observed and as the aW decreased, at both temperatures, the growth rate of the strains also decreased. A significant increase in growth rate was observed as the concentration of atrazine in the medium increased, for all aW levels tested. The optimal conditions for the accumulation of AFB1 in the control treatments were 0.98 aW and 28 °C, after 7 days of incubation. As the concentration of herbicide increased, AFB1 production also increased (P < 0.05). These results add to the knowledge about consequences with regard to aflatoxin production of the use of excessive atrazine doses in extensive maize culture.
publishDate 2018
dc.date.none.fl_str_mv 2018-09
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/11336/103081
Benito, Nicolas; Carranza, Cecilia Soledad; Magnoli, Carina Elizabeth; Barberis, Carla Lorena; Effect of atrazine on growth and production of AFB1 in Aspergillus section Flavi strains isolated from maize soils; Springer Verlag; Mycotoxin Research; 35; 1; 9-2018; 55-64
1867-1632
0178-7888
CONICET Digital
CONICET
url http://hdl.handle.net/11336/103081
identifier_str_mv Benito, Nicolas; Carranza, Cecilia Soledad; Magnoli, Carina Elizabeth; Barberis, Carla Lorena; Effect of atrazine on growth and production of AFB1 in Aspergillus section Flavi strains isolated from maize soils; Springer Verlag; Mycotoxin Research; 35; 1; 9-2018; 55-64
1867-1632
0178-7888
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/10.1007/s12550-018-0330-5
info:eu-repo/semantics/altIdentifier/doi/10.1007/s12550-018-0330-5
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer Verlag
publisher.none.fl_str_mv Springer Verlag
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 13.13397

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