Variability of aflatoxin and cyclopiazonic acid production by Aspergillus section flavi from different substrates in Argentina

Aspergillus section flavi strains isolated from peanuts, wheat and soybean grown in Argentina were screened for aflatoxins (type B and G) and cyclopiazonic acid (CPA) production. Aspergillus flavus was the predominant species in all substrates, although there was almost the same proportion of A. fla...

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Autores principales:	Vaamonde, G., Patriarca, A., Fernández Pinto, V., Comerio, R., Degrossi, C.
Formato:	JOUR
Materias:	Aflatoxins Aspergillus section flavi Cyclopiazonic acid Peanut Soybean Wheat aflatoxin aflatoxin B aflatoxin g cyclopiazonic acid mycotoxin unclassified drug Africa Argentina article Aspergillus flavus aspergillus nomius Aspergillus parasiticus cotton fungal strain fungus isolation incidence nonhuman peanut plant growth Sclerotium (Ascomycota) soil soybean species Thailand United States wheat Arachis hypogaea Aspergillus Aspergillus nomius Glycine max Micropus Nomius Triticum aestivum
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_01681605_v88_n1_p79_Vaamonde
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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spelling	todo:paper_01681605_v88_n1_p79_Vaamonde2023-10-03T15:06:04Z Variability of aflatoxin and cyclopiazonic acid production by Aspergillus section flavi from different substrates in Argentina Vaamonde, G. Patriarca, A. Fernández Pinto, V. Comerio, R. Degrossi, C. Aflatoxins Aspergillus section flavi Cyclopiazonic acid Peanut Soybean Wheat aflatoxin aflatoxin B aflatoxin g cyclopiazonic acid mycotoxin unclassified drug Africa Argentina article Aspergillus flavus aspergillus nomius Aspergillus parasiticus cotton fungal strain fungus isolation incidence nonhuman peanut plant growth Sclerotium (Ascomycota) soil soybean species Thailand United States wheat Arachis hypogaea Aspergillus Aspergillus Aspergillus flavus Aspergillus flavus Aspergillus nomius Aspergillus nomius Aspergillus parasiticus Aspergillus parasiticus Glycine max Micropus Nomius Triticum aestivum Aspergillus section flavi strains isolated from peanuts, wheat and soybean grown in Argentina were screened for aflatoxins (type B and G) and cyclopiazonic acid (CPA) production. Aspergillus flavus was the predominant species in all substrates, although there was almost the same proportion of A. flavus and Aspergillus parasiticus in peanuts. Aspergillus nomius was not found. Incidence of aflatoxigenic A. flavus strains was higher in peanuts (69%) than in wheat (13%) or soybeans (5%) while the ratio of CPA producers A. flavus isolated from all substrates was very high (94% in peanuts, 93% in wheat and 73% in soybeans). Isolates of A. flavus able to produce simultaneously aflatoxins type B and CPA were detected in all substrates, suggesting the possibility of co-occurrence of these toxins. Almost all isolates of A. parasiticus resulted aflatoxins (type B and G) producers but did not produce CPA. Five of sixty-seven strains isolated from peanuts showed an unusual pattern of mycotoxin production (aflatoxins type B and G simultaneously with CPA). These strains also produced numerous small sclerotia like S strains of A. flavus detected in cottonseed in Arizona and in soils of Thailand and West Africa. The atypical strains are not widely distributed in Argentina and were found uniquely in peanuts. © 2003 Elsevier Science B.V. All rights reserved. Fil:Vaamonde, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Patriarca, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Comerio, R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Degrossi, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01681605_v88_n1_p79_Vaamonde
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Aflatoxins Aspergillus section flavi Cyclopiazonic acid Peanut Soybean Wheat aflatoxin aflatoxin B aflatoxin g cyclopiazonic acid mycotoxin unclassified drug Africa Argentina article Aspergillus flavus aspergillus nomius Aspergillus parasiticus cotton fungal strain fungus isolation incidence nonhuman peanut plant growth Sclerotium (Ascomycota) soil soybean species Thailand United States wheat Arachis hypogaea Aspergillus Aspergillus Aspergillus flavus Aspergillus flavus Aspergillus nomius Aspergillus nomius Aspergillus parasiticus Aspergillus parasiticus Glycine max Micropus Nomius Triticum aestivum
spellingShingle	Aflatoxins Aspergillus section flavi Cyclopiazonic acid Peanut Soybean Wheat aflatoxin aflatoxin B aflatoxin g cyclopiazonic acid mycotoxin unclassified drug Africa Argentina article Aspergillus flavus aspergillus nomius Aspergillus parasiticus cotton fungal strain fungus isolation incidence nonhuman peanut plant growth Sclerotium (Ascomycota) soil soybean species Thailand United States wheat Arachis hypogaea Aspergillus Aspergillus Aspergillus flavus Aspergillus flavus Aspergillus nomius Aspergillus nomius Aspergillus parasiticus Aspergillus parasiticus Glycine max Micropus Nomius Triticum aestivum Vaamonde, G. Patriarca, A. Fernández Pinto, V. Comerio, R. Degrossi, C. Variability of aflatoxin and cyclopiazonic acid production by Aspergillus section flavi from different substrates in Argentina
topic_facet	Aflatoxins Aspergillus section flavi Cyclopiazonic acid Peanut Soybean Wheat aflatoxin aflatoxin B aflatoxin g cyclopiazonic acid mycotoxin unclassified drug Africa Argentina article Aspergillus flavus aspergillus nomius Aspergillus parasiticus cotton fungal strain fungus isolation incidence nonhuman peanut plant growth Sclerotium (Ascomycota) soil soybean species Thailand United States wheat Arachis hypogaea Aspergillus Aspergillus Aspergillus flavus Aspergillus flavus Aspergillus nomius Aspergillus nomius Aspergillus parasiticus Aspergillus parasiticus Glycine max Micropus Nomius Triticum aestivum
description	Aspergillus section flavi strains isolated from peanuts, wheat and soybean grown in Argentina were screened for aflatoxins (type B and G) and cyclopiazonic acid (CPA) production. Aspergillus flavus was the predominant species in all substrates, although there was almost the same proportion of A. flavus and Aspergillus parasiticus in peanuts. Aspergillus nomius was not found. Incidence of aflatoxigenic A. flavus strains was higher in peanuts (69%) than in wheat (13%) or soybeans (5%) while the ratio of CPA producers A. flavus isolated from all substrates was very high (94% in peanuts, 93% in wheat and 73% in soybeans). Isolates of A. flavus able to produce simultaneously aflatoxins type B and CPA were detected in all substrates, suggesting the possibility of co-occurrence of these toxins. Almost all isolates of A. parasiticus resulted aflatoxins (type B and G) producers but did not produce CPA. Five of sixty-seven strains isolated from peanuts showed an unusual pattern of mycotoxin production (aflatoxins type B and G simultaneously with CPA). These strains also produced numerous small sclerotia like S strains of A. flavus detected in cottonseed in Arizona and in soils of Thailand and West Africa. The atypical strains are not widely distributed in Argentina and were found uniquely in peanuts. © 2003 Elsevier Science B.V. All rights reserved.
format	JOUR
author	Vaamonde, G. Patriarca, A. Fernández Pinto, V. Comerio, R. Degrossi, C.
author_facet	Vaamonde, G. Patriarca, A. Fernández Pinto, V. Comerio, R. Degrossi, C.
author_sort	Vaamonde, G.
title	Variability of aflatoxin and cyclopiazonic acid production by Aspergillus section flavi from different substrates in Argentina
title_short	Variability of aflatoxin and cyclopiazonic acid production by Aspergillus section flavi from different substrates in Argentina
title_full	Variability of aflatoxin and cyclopiazonic acid production by Aspergillus section flavi from different substrates in Argentina
title_fullStr	Variability of aflatoxin and cyclopiazonic acid production by Aspergillus section flavi from different substrates in Argentina
title_full_unstemmed	Variability of aflatoxin and cyclopiazonic acid production by Aspergillus section flavi from different substrates in Argentina
title_sort	variability of aflatoxin and cyclopiazonic acid production by aspergillus section flavi from different substrates in argentina
url	http://hdl.handle.net/20.500.12110/paper_01681605_v88_n1_p79_Vaamonde
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Variability of aflatoxin and cyclopiazonic acid production by Aspergillus section flavi from different substrates in Argentina

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