Influence of environmental parameters on mycotoxin production by Alternaria arborescens

Alternaria arborescens has been reported as a common fungal species invading tomatoes and is capable of producing several mycotoxins in infected plants, fruits and in agricultural commodities. Alternariol (AOH), alternariol monomethyl ether (AME), and tenuazonic acid (TeA) are some of the main Alter...

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Autores: Vaquera, Sandra Lucrecia, Patriarca, Andrea Rosana, Fernández Pinto, Virginia
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2015
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/24018
Acceso en línea:http://hdl.handle.net/11336/24018
Access Level:acceso abierto
Palabra clave:Alternaria Arborescens
Alternariol
Alternariol Monomethyl Ether
Tenuazonic Acid
Aal Toxins
Environmental Parameters
https://purl.org/becyt/ford/2.11
https://purl.org/becyt/ford/2
id AR_c1949f2defc3f00f43ecc2d11087db0f
oai_identifier_str oai:ri.conicet.gov.ar:11336/24018
network_acronym_str AR
network_name_str Argentina
repository_id_str
spelling Influence of environmental parameters on mycotoxin production by Alternaria arborescensVaquera, Sandra LucreciaPatriarca, Andrea RosanaFernández Pinto, VirginiaAlternaria ArborescensAlternariolAlternariol Monomethyl EtherTenuazonic AcidAal ToxinsEnvironmental Parametershttps://purl.org/becyt/ford/2.11https://purl.org/becyt/ford/2Alternaria arborescens has been reported as a common fungal species invading tomatoes and is capable of producing several mycotoxins in infected plants, fruits and in agricultural commodities. Alternariol (AOH), alternariol monomethyl ether (AME), and tenuazonic acid (TeA) are some of the main Alternaria mycotoxins that can be found as contaminants of food. This species can produce these toxic metabolites together with AAL toxins (Alternaria alternata f. sp. lycopersicum toxins), which can act as inhibitors of sphingolipid biosynthesis. The objective of this study was to determine the effect of water activity (aw, 0.995, 0.975, 0.950) and temperature (6, 15, 20, 25 and 30 °C) on mycotoxin production by A. arborescens on a synthetic tomato medium. The optimum production of AOH and AME occurred at 0.975 aw after 40 days of incubation at 30 °C. The maximum TeA accumulation was observed at 0.975 aw and 25 °C and at 0.950 aw and 30 °C. AAL TA was produced in higher quantities at 0.995 aw and 30 °C. At 6 °C no quantifiable levels of AOH or AME were detected, but significant amounts of TeA were produced at 0.975 aw. In general, high aw levels and high temperatures were favorable for mycotoxin production. The greatest accumulation of all four toxins occurred at 0.975 aw and 30 °C. The results obtained here could be extrapolated to evaluate the risk of tomato fruits and tomato products contamination caused by these toxins.Fil: Vaquera, Sandra Lucrecia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Orgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Patriarca, Andrea Rosana. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Micología y Botánica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Micología y Botánica; ArgentinaFil: Fernández Pinto, Virginia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Orgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaElsevier Science2015-12-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/24018Vaquera, Sandra Lucrecia; Patriarca, Andrea Rosana; Fernández Pinto, Virginia; Influence of environmental parameters on mycotoxin production by Alternaria arborescens; Elsevier Science; International Journal of Food Microbiology; 219; 12-12-2015; 44-490168-16051879-3460CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0168160515301835info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijfoodmicro.2015.12.003info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T14:13:19Zoai:ri.conicet.gov.ar:11336/24018instacron: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:34982024-05-08 14:13:20.144CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Influence of environmental parameters on mycotoxin production by Alternaria arborescens
title Influence of environmental parameters on mycotoxin production by Alternaria arborescens
spellingShingle Influence of environmental parameters on mycotoxin production by Alternaria arborescens
Vaquera, Sandra Lucrecia
Alternaria Arborescens
Alternariol
Alternariol Monomethyl Ether
Tenuazonic Acid
Aal Toxins
Environmental Parameters
https://purl.org/becyt/ford/2.11
https://purl.org/becyt/ford/2
title_short Influence of environmental parameters on mycotoxin production by Alternaria arborescens
title_full Influence of environmental parameters on mycotoxin production by Alternaria arborescens
title_fullStr Influence of environmental parameters on mycotoxin production by Alternaria arborescens
title_full_unstemmed Influence of environmental parameters on mycotoxin production by Alternaria arborescens
title_sort Influence of environmental parameters on mycotoxin production by Alternaria arborescens
dc.creator.none.fl_str_mv Vaquera, Sandra Lucrecia
Patriarca, Andrea Rosana
Fernández Pinto, Virginia
author Vaquera, Sandra Lucrecia
author_facet Vaquera, Sandra Lucrecia
Patriarca, Andrea Rosana
Fernández Pinto, Virginia
author_role author
author2 Patriarca, Andrea Rosana
Fernández Pinto, Virginia
author2_role author
author
dc.subject.none.fl_str_mv Alternaria Arborescens
Alternariol
Alternariol Monomethyl Ether
Tenuazonic Acid
Aal Toxins
Environmental Parameters
https://purl.org/becyt/ford/2.11
https://purl.org/becyt/ford/2
topic Alternaria Arborescens
Alternariol
Alternariol Monomethyl Ether
Tenuazonic Acid
Aal Toxins
Environmental Parameters
https://purl.org/becyt/ford/2.11
https://purl.org/becyt/ford/2
description Alternaria arborescens has been reported as a common fungal species invading tomatoes and is capable of producing several mycotoxins in infected plants, fruits and in agricultural commodities. Alternariol (AOH), alternariol monomethyl ether (AME), and tenuazonic acid (TeA) are some of the main Alternaria mycotoxins that can be found as contaminants of food. This species can produce these toxic metabolites together with AAL toxins (Alternaria alternata f. sp. lycopersicum toxins), which can act as inhibitors of sphingolipid biosynthesis. The objective of this study was to determine the effect of water activity (aw, 0.995, 0.975, 0.950) and temperature (6, 15, 20, 25 and 30 °C) on mycotoxin production by A. arborescens on a synthetic tomato medium. The optimum production of AOH and AME occurred at 0.975 aw after 40 days of incubation at 30 °C. The maximum TeA accumulation was observed at 0.975 aw and 25 °C and at 0.950 aw and 30 °C. AAL TA was produced in higher quantities at 0.995 aw and 30 °C. At 6 °C no quantifiable levels of AOH or AME were detected, but significant amounts of TeA were produced at 0.975 aw. In general, high aw levels and high temperatures were favorable for mycotoxin production. The greatest accumulation of all four toxins occurred at 0.975 aw and 30 °C. The results obtained here could be extrapolated to evaluate the risk of tomato fruits and tomato products contamination caused by these toxins.
publishDate 2015
dc.date.none.fl_str_mv 2015-12-12
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/11336/24018
Vaquera, Sandra Lucrecia; Patriarca, Andrea Rosana; Fernández Pinto, Virginia; Influence of environmental parameters on mycotoxin production by Alternaria arborescens; Elsevier Science; International Journal of Food Microbiology; 219; 12-12-2015; 44-49
0168-1605
1879-3460
CONICET Digital
CONICET
url http://hdl.handle.net/11336/24018
identifier_str_mv Vaquera, Sandra Lucrecia; Patriarca, Andrea Rosana; Fernández Pinto, Virginia; Influence of environmental parameters on mycotoxin production by Alternaria arborescens; Elsevier Science; International Journal of Food Microbiology; 219; 12-12-2015; 44-49
0168-1605
1879-3460
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://www.sciencedirect.com/science/article/pii/S0168160515301835
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijfoodmicro.2015.12.003
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
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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 15.812429

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