Fungal pathogens associated with harvested table grapes in Lebanon, and characterization of the mycotoxigenic genera

Table grapes are exposed to fungal infections before and after harvest. In particular, Aspergillus, Penicillium, and Alternaria can cause decays and contamination by mycotoxins. The main fungi affecting Lebanese table grapes after harvest were assessed as epiphytic populations, latent infections, an...

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Autores principales:	Wassim Habib, Jack Khalil, Annamaria Mincuzzi, Carine Saab, Elvis Gerges, Hala Chahine Tsouvalakis, Antonio Ippolito, Simona Marianna Sanzani
Formato:	article
Lenguaje:	EN
Publicado:	Firenze University Press 2021
Materias:	postharvest Aspergillus Penicillium Alternaria Mycotoxins Sulphur dioxide Botany QK1-989
Acceso en línea:	https://doaj.org/article/c5afc12177a848dc961984504e935cc6
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spelling	oai:doaj.org-article:c5afc12177a848dc961984504e935cc62021-11-16T09:30:25ZFungal pathogens associated with harvested table grapes in Lebanon, and characterization of the mycotoxigenic genera10.36253/phyto-129460031-94651593-2095https://doaj.org/article/c5afc12177a848dc961984504e935cc62021-11-01T00:00:00Zhttps://oajournals.fupress.net/index.php/pm/article/view/12946https://doaj.org/toc/0031-9465https://doaj.org/toc/1593-2095Table grapes are exposed to fungal infections before and after harvest. In particular, Aspergillus, Penicillium, and Alternaria can cause decays and contamination by mycotoxins. The main fungi affecting Lebanese table grapes after harvest were assessed as epiphytic populations, latent infections, and rots. Effects of storage with and without SO2 generating pads were also evaluated. Representative isolates of toxigenic genera were characterised, and their genetic potential to produce ochratoxin A, fumonisins, and patulin was established. The epiphytic populations mainly included wound pathogens (Aspergillus spp. and Penicillium spp.), while latent infections and rots were mostly caused by Botrytis spp. The use of SO2 generating pads reduced the epiphytic populations and rots, but was less effective against latent infections. Characterization of Aspergillus, Penicillium, and Alternaria isolates showed that A. tubingensis, P. glabrum, and A. alternata were the most common species. Strains of A. welwitschiae and P. expansum were also found to be genetically able to produce, respectively, ochratoxin A plus fumonisins and patulin. These data demonstrate the need for effective measures to prevent postharvest losses caused by toxigenic fungi. Wassim HabibJack KhalilAnnamaria MincuzziCarine SaabElvis GergesHala Chahine TsouvalakisAntonio IppolitoSimona Marianna SanzaniFirenze University PressarticlepostharvestAspergillusPenicilliumAlternariaMycotoxinsSulphur dioxideBotanyQK1-989ENPhytopathologia Mediterranea, Vol 60, Iss 3 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	postharvest Aspergillus Penicillium Alternaria Mycotoxins Sulphur dioxide Botany QK1-989
spellingShingle	postharvest Aspergillus Penicillium Alternaria Mycotoxins Sulphur dioxide Botany QK1-989 Wassim Habib Jack Khalil Annamaria Mincuzzi Carine Saab Elvis Gerges Hala Chahine Tsouvalakis Antonio Ippolito Simona Marianna Sanzani Fungal pathogens associated with harvested table grapes in Lebanon, and characterization of the mycotoxigenic genera
description	Table grapes are exposed to fungal infections before and after harvest. In particular, Aspergillus, Penicillium, and Alternaria can cause decays and contamination by mycotoxins. The main fungi affecting Lebanese table grapes after harvest were assessed as epiphytic populations, latent infections, and rots. Effects of storage with and without SO2 generating pads were also evaluated. Representative isolates of toxigenic genera were characterised, and their genetic potential to produce ochratoxin A, fumonisins, and patulin was established. The epiphytic populations mainly included wound pathogens (Aspergillus spp. and Penicillium spp.), while latent infections and rots were mostly caused by Botrytis spp. The use of SO2 generating pads reduced the epiphytic populations and rots, but was less effective against latent infections. Characterization of Aspergillus, Penicillium, and Alternaria isolates showed that A. tubingensis, P. glabrum, and A. alternata were the most common species. Strains of A. welwitschiae and P. expansum were also found to be genetically able to produce, respectively, ochratoxin A plus fumonisins and patulin. These data demonstrate the need for effective measures to prevent postharvest losses caused by toxigenic fungi.
format	article
author	Wassim Habib Jack Khalil Annamaria Mincuzzi Carine Saab Elvis Gerges Hala Chahine Tsouvalakis Antonio Ippolito Simona Marianna Sanzani
author_facet	Wassim Habib Jack Khalil Annamaria Mincuzzi Carine Saab Elvis Gerges Hala Chahine Tsouvalakis Antonio Ippolito Simona Marianna Sanzani
author_sort	Wassim Habib
title	Fungal pathogens associated with harvested table grapes in Lebanon, and characterization of the mycotoxigenic genera
title_short	Fungal pathogens associated with harvested table grapes in Lebanon, and characterization of the mycotoxigenic genera
title_full	Fungal pathogens associated with harvested table grapes in Lebanon, and characterization of the mycotoxigenic genera
title_fullStr	Fungal pathogens associated with harvested table grapes in Lebanon, and characterization of the mycotoxigenic genera
title_full_unstemmed	Fungal pathogens associated with harvested table grapes in Lebanon, and characterization of the mycotoxigenic genera
title_sort	fungal pathogens associated with harvested table grapes in lebanon, and characterization of the mycotoxigenic genera
publisher	Firenze University Press
publishDate	2021
url	https://doaj.org/article/c5afc12177a848dc961984504e935cc6
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Fungal pathogens associated with harvested table grapes in Lebanon, and characterization of the mycotoxigenic genera

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