Effect of ultraviolet radiation A and B on growth and mycotoxin production by Aspergillus carbonarius and Aspergillus parasiticus in grape and pistachio media

The effects of two exposure times per day (6 and 16 h) of UV-A or UV-B radiation, combined with dark and dark plus light incubation periods during 7e21 d on fungal growth and mycotoxins production of Aspergillus species were studied. Aspergillus carbonarius and Aspergillus parasiticus were inoculate...

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Detalhes bibliográficos
Autores: García Cela, Esther, Marín Sillué, Sònia, Sanchís Almenar, Vicente, Crespo Sempere, Ana, Ramos Girona, Antonio J.
Tipo de documento: artigo
Estado:Versión aceptada para publicación
Data de publicação:2015
País:España
Recursos:Universitat de Lleida (UdL)
Repositório:Repositori Obert UdL
OAI Identifier:oai:repositori.udl.cat:10459.1/62859
Acesso em linha:https://doi.org/10.1016/j.funbio.2014.11.004
http://hdl.handle.net/10459.1/62859
Access Level:Acceso aberto
Palavra-chave:Aspergillus carbonarius
Aspergillus parasiticus
Aflatoxin
Climate change
Ochratoxin A
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spelling Effect of ultraviolet radiation A and B on growth and mycotoxin production by Aspergillus carbonarius and Aspergillus parasiticus in grape and pistachio mediaGarcía Cela, EstherMarín Sillué, SòniaSanchís Almenar, VicenteCrespo Sempere, AnaRamos Girona, Antonio J.Aspergillus carbonariusAspergillus parasiticusAflatoxinClimate changeOchratoxin AThe effects of two exposure times per day (6 and 16 h) of UV-A or UV-B radiation, combined with dark and dark plus light incubation periods during 7e21 d on fungal growth and mycotoxins production of Aspergillus species were studied. Aspergillus carbonarius and Aspergillus parasiticus were inoculated on grape and pistachio media under diurnal and nocturnal temperatures choosing light photoperiod according to harvest conditions of these crops in Spain. Ultraviolet irradiation had a significant effect on A. carbonarius and A. parasiticus colony size (diameter, biomass dry weight, and colony density) and mycotoxin accumulation, although intraspecies differences were observed. Inhibition of A. carbonarius fungal growth decreased when exposure time was reduced from 16 h to 6 h, but this was not always true for ochratoxin A (OTA) production. OTA reduction was higher under UV-A than UV-B radiation and the reduction increased along time conversely to the aflatoxins (AFs). Aflatoxin B1 (AFB1) was the main toxin produced by A. parasiticus except in the UV-B light irradiated colonies which showed a higher percentage of AFG than AFB. Morphological changes were observed in colonies grown under UV-B light.The authors are grateful to the Spanish Government (AGL2010-22182-C04-01) and Comissionat per a Universitats i Recerca del Departament d’Innovació, Universitats i Empresa de la Generalitat de Catalunya (AGAUR). The authors are also grateful to Fernando Rubio and Hector Castan by the laboratory support.Elsevier2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://doi.org/10.1016/j.funbio.2014.11.004http://hdl.handle.net/10459.1/62859reponame:Repositori Obert UdL instname:Universitat de Lleida (UdL)Inglésinfo:eu-repo/grantAgreement/MICINN//AGL2010-22182-C04-01Versió postprint del document publicat a: https://doi.org/10.1016/j.funbio.2014.11.004Fungal Biology, 2015, vol. 119, núm. 1, p. 67-78(c) The British Mycological Society, 2014info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/oai:repositori.udl.cat:10459.1/628592026-06-24T12:42:17Z
dc.title.none.fl_str_mv Effect of ultraviolet radiation A and B on growth and mycotoxin production by Aspergillus carbonarius and Aspergillus parasiticus in grape and pistachio media
title Effect of ultraviolet radiation A and B on growth and mycotoxin production by Aspergillus carbonarius and Aspergillus parasiticus in grape and pistachio media
spellingShingle Effect of ultraviolet radiation A and B on growth and mycotoxin production by Aspergillus carbonarius and Aspergillus parasiticus in grape and pistachio media
García Cela, Esther
Aspergillus carbonarius
Aspergillus parasiticus
Aflatoxin
Climate change
Ochratoxin A
title_short Effect of ultraviolet radiation A and B on growth and mycotoxin production by Aspergillus carbonarius and Aspergillus parasiticus in grape and pistachio media
title_full Effect of ultraviolet radiation A and B on growth and mycotoxin production by Aspergillus carbonarius and Aspergillus parasiticus in grape and pistachio media
title_fullStr Effect of ultraviolet radiation A and B on growth and mycotoxin production by Aspergillus carbonarius and Aspergillus parasiticus in grape and pistachio media
title_full_unstemmed Effect of ultraviolet radiation A and B on growth and mycotoxin production by Aspergillus carbonarius and Aspergillus parasiticus in grape and pistachio media
title_sort Effect of ultraviolet radiation A and B on growth and mycotoxin production by Aspergillus carbonarius and Aspergillus parasiticus in grape and pistachio media
dc.creator.none.fl_str_mv García Cela, Esther
Marín Sillué, Sònia
Sanchís Almenar, Vicente
Crespo Sempere, Ana
Ramos Girona, Antonio J.
author García Cela, Esther
author_facet García Cela, Esther
Marín Sillué, Sònia
Sanchís Almenar, Vicente
Crespo Sempere, Ana
Ramos Girona, Antonio J.
author_role author
author2 Marín Sillué, Sònia
Sanchís Almenar, Vicente
Crespo Sempere, Ana
Ramos Girona, Antonio J.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Aspergillus carbonarius
Aspergillus parasiticus
Aflatoxin
Climate change
Ochratoxin A
topic Aspergillus carbonarius
Aspergillus parasiticus
Aflatoxin
Climate change
Ochratoxin A
description The effects of two exposure times per day (6 and 16 h) of UV-A or UV-B radiation, combined with dark and dark plus light incubation periods during 7e21 d on fungal growth and mycotoxins production of Aspergillus species were studied. Aspergillus carbonarius and Aspergillus parasiticus were inoculated on grape and pistachio media under diurnal and nocturnal temperatures choosing light photoperiod according to harvest conditions of these crops in Spain. Ultraviolet irradiation had a significant effect on A. carbonarius and A. parasiticus colony size (diameter, biomass dry weight, and colony density) and mycotoxin accumulation, although intraspecies differences were observed. Inhibition of A. carbonarius fungal growth decreased when exposure time was reduced from 16 h to 6 h, but this was not always true for ochratoxin A (OTA) production. OTA reduction was higher under UV-A than UV-B radiation and the reduction increased along time conversely to the aflatoxins (AFs). Aflatoxin B1 (AFB1) was the main toxin produced by A. parasiticus except in the UV-B light irradiated colonies which showed a higher percentage of AFG than AFB. Morphological changes were observed in colonies grown under UV-B light.
publishDate 2015
dc.date.none.fl_str_mv 2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.1016/j.funbio.2014.11.004
http://hdl.handle.net/10459.1/62859
url https://doi.org/10.1016/j.funbio.2014.11.004
http://hdl.handle.net/10459.1/62859
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MICINN//AGL2010-22182-C04-01
Versió postprint del document publicat a: https://doi.org/10.1016/j.funbio.2014.11.004
Fungal Biology, 2015, vol. 119, núm. 1, p. 67-78
dc.rights.none.fl_str_mv (c) The British Mycological Society, 2014
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
rights_invalid_str_mv (c) The British Mycological Society, 2014
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositori Obert UdL
instname:Universitat de Lleida (UdL)
instname_str Universitat de Lleida (UdL)
reponame_str Repositori Obert UdL
collection Repositori Obert UdL
repository.name.fl_str_mv
repository.mail.fl_str_mv
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