Temperature and water activity influence on simultaneous production of AAL toxins by Alternaria arborescens on tomato medium

Alternaria spp. have been reported to be the most frequent phytopathogenic fungi invading tomatoes. Certain species are capable of producing several mycotoxins in infected plants and in agricultural commodities. AAL toxins are produced by Alternaria arborescens, which is the causal agent of tomato s...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Patriarca, Andrea Rosana, Cabrera, Gabriela Myriam
Publicado:	2017
Materias:	AAL toxins Alternaria arborescens Temperature Tomato Water activity fruit fungal disease fungus pathogen pathogenicity temperature effect toxin Alternaria Fungi Lycopersicon esculentum
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09291873_v148_n4_p1003_Vaquera http://hdl.handle.net/20.500.12110/paper_09291873_v148_n4_p1003_Vaquera
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_09291873_v148_n4_p1003_Vaquera
record_format	dspace
spelling	paper:paper_09291873_v148_n4_p1003_Vaquera2023-06-08T15:52:22Z Temperature and water activity influence on simultaneous production of AAL toxins by Alternaria arborescens on tomato medium Patriarca, Andrea Rosana Cabrera, Gabriela Myriam AAL toxins Alternaria arborescens Temperature Tomato Water activity fruit fungal disease fungus pathogen pathogenicity temperature effect toxin Alternaria Alternaria arborescens Fungi Lycopersicon esculentum Alternaria spp. have been reported to be the most frequent phytopathogenic fungi invading tomatoes. Certain species are capable of producing several mycotoxins in infected plants and in agricultural commodities. AAL toxins are produced by Alternaria arborescens, which is the causal agent of tomato stem canker, and one of the species involved in the tomato black mold. AAL toxins include five congeners, TA, TB, TC, TD and TE, structurally similar. The objective of this study was to determine the effect of water activity (aw, 0.995, and 0.950) and temperature (6, 15, 20, 25 and 30 °C) on simultaneous AAL toxins production by Alternaria arborescens. The maximum accumulation of AAL toxins occurred at 0.995 aw after 40 days of incubation at 30 °C. None of the toxins was detected at temperatures below 30 °C at any aw during the whole incubation period. The results obtained here could be extrapolated to evaluate the risk of toxin accumulation in tomato fruit and tomato products. © 2017, Koninklijke Nederlandse Planteziektenkundige Vereniging. Fil:Patriarca, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Cabrera, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2017 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09291873_v148_n4_p1003_Vaquera http://hdl.handle.net/20.500.12110/paper_09291873_v148_n4_p1003_Vaquera
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	AAL toxins Alternaria arborescens Temperature Tomato Water activity fruit fungal disease fungus pathogen pathogenicity temperature effect toxin Alternaria Alternaria arborescens Fungi Lycopersicon esculentum
spellingShingle	AAL toxins Alternaria arborescens Temperature Tomato Water activity fruit fungal disease fungus pathogen pathogenicity temperature effect toxin Alternaria Alternaria arborescens Fungi Lycopersicon esculentum Patriarca, Andrea Rosana Cabrera, Gabriela Myriam Temperature and water activity influence on simultaneous production of AAL toxins by Alternaria arborescens on tomato medium
topic_facet	AAL toxins Alternaria arborescens Temperature Tomato Water activity fruit fungal disease fungus pathogen pathogenicity temperature effect toxin Alternaria Alternaria arborescens Fungi Lycopersicon esculentum
description	Alternaria spp. have been reported to be the most frequent phytopathogenic fungi invading tomatoes. Certain species are capable of producing several mycotoxins in infected plants and in agricultural commodities. AAL toxins are produced by Alternaria arborescens, which is the causal agent of tomato stem canker, and one of the species involved in the tomato black mold. AAL toxins include five congeners, TA, TB, TC, TD and TE, structurally similar. The objective of this study was to determine the effect of water activity (aw, 0.995, and 0.950) and temperature (6, 15, 20, 25 and 30 °C) on simultaneous AAL toxins production by Alternaria arborescens. The maximum accumulation of AAL toxins occurred at 0.995 aw after 40 days of incubation at 30 °C. None of the toxins was detected at temperatures below 30 °C at any aw during the whole incubation period. The results obtained here could be extrapolated to evaluate the risk of toxin accumulation in tomato fruit and tomato products. © 2017, Koninklijke Nederlandse Planteziektenkundige Vereniging.
author	Patriarca, Andrea Rosana Cabrera, Gabriela Myriam
author_facet	Patriarca, Andrea Rosana Cabrera, Gabriela Myriam
author_sort	Patriarca, Andrea Rosana
title	Temperature and water activity influence on simultaneous production of AAL toxins by Alternaria arborescens on tomato medium
title_short	Temperature and water activity influence on simultaneous production of AAL toxins by Alternaria arborescens on tomato medium
title_full	Temperature and water activity influence on simultaneous production of AAL toxins by Alternaria arborescens on tomato medium
title_fullStr	Temperature and water activity influence on simultaneous production of AAL toxins by Alternaria arborescens on tomato medium
title_full_unstemmed	Temperature and water activity influence on simultaneous production of AAL toxins by Alternaria arborescens on tomato medium
title_sort	temperature and water activity influence on simultaneous production of aal toxins by alternaria arborescens on tomato medium
publishDate	2017
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09291873_v148_n4_p1003_Vaquera http://hdl.handle.net/20.500.12110/paper_09291873_v148_n4_p1003_Vaquera
work_keys_str_mv	AT patriarcaandrearosana temperatureandwateractivityinfluenceonsimultaneousproductionofaaltoxinsbyalternariaarborescensontomatomedium AT cabreragabrielamyriam temperatureandwateractivityinfluenceonsimultaneousproductionofaaltoxinsbyalternariaarborescensontomatomedium
_version_	1768546591906463744

Temperature and water activity influence on simultaneous production of AAL toxins by Alternaria arborescens on tomato medium

Ejemplares similares