Selection and identification of yeasts for the biological control of Alternaria in Malbec wine grapes

The presence of Alternaria fungal genus, which is able to produce mycotoxin in wine grapes, could mean a health risk for wine consumers. With the aim to select a possible biological control agent in wine grapes, yeasts from the same ecosystem were evaluated. The 22.1% from total yeasts and yeast-lik...

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Autores principales: Prendes, Luciana Paola, Merín, María Gabriela, Andreoni, Mario Alberto, Morata, Vilma Inés
Formato: Artículo revista
Lenguaje:Español
Publicado: Facultad de Ciencias Aplicadas a la Industria 2021
Acceso en línea:https://revistas.uncu.edu.ar/ojs3/index.php/revicap/article/view/5299
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Revista de Ingeniería y Ciencias Aplicadas de Universidad Nacional de Cuyo
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institution Universidad Nacional de Cuyo
institution_str I-11
repository_str R-108
container_title_str Revista de Ingeniería y Ciencias Aplicadas
language Español
format Artículo revista
author Prendes, Luciana Paola
Merín, María Gabriela
Andreoni, Mario Alberto
Morata, Vilma Inés
spellingShingle Prendes, Luciana Paola
Merín, María Gabriela
Andreoni, Mario Alberto
Morata, Vilma Inés
Selection and identification of yeasts for the biological control of Alternaria in Malbec wine grapes
author_facet Prendes, Luciana Paola
Merín, María Gabriela
Andreoni, Mario Alberto
Morata, Vilma Inés
author_sort Prendes, Luciana Paola
title Selection and identification of yeasts for the biological control of Alternaria in Malbec wine grapes
title_short Selection and identification of yeasts for the biological control of Alternaria in Malbec wine grapes
title_full Selection and identification of yeasts for the biological control of Alternaria in Malbec wine grapes
title_fullStr Selection and identification of yeasts for the biological control of Alternaria in Malbec wine grapes
title_full_unstemmed Selection and identification of yeasts for the biological control of Alternaria in Malbec wine grapes
title_sort selection and identification of yeasts for the biological control of alternaria in malbec wine grapes
description The presence of Alternaria fungal genus, which is able to produce mycotoxin in wine grapes, could mean a health risk for wine consumers. With the aim to select a possible biological control agent in wine grapes, yeasts from the same ecosystem were evaluated. The 22.1% from total yeasts and yeast-like organisms evaluated showed antagonistic activity against Alternaria alternata in wine grape assays and most of them (14/15) showed a great antagonistic ability achieving a preventive effect. All Metschnikowia spp., Candida zemplinina and almost all Hanseniaspora uvarum evaluated strains, with higher nutritional requirements, showed antagonist capability against A. alternata. Meanwhile, none of the lesser nutritional requirement strains belonging to Aureobasidium pullulans, Cryptococcus laurenti II and Rhodotorula spp. did, suggesting a positive correlation between these factors. Molecular identification through 26S sequencing allows confirming the assigned identity by PCR-RFLP method. These findings result promising for the biological control of Alternaria in wine grapes.
publisher Facultad de Ciencias Aplicadas a la Industria
publishDate 2021
url https://revistas.uncu.edu.ar/ojs3/index.php/revicap/article/view/5299
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first_indexed 2022-06-20T13:40:30Z
last_indexed 2022-06-20T13:40:30Z
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