Survey of mycobiota on Slovakian wine grapes from Small Carpathians wine region

Felšöciová, Soňa; Kačániová, Miroslava; František, Vrábel

doi:10.5219/1322

Cited by 4 publications

(4 citation statements)

References 40 publications

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“…Penicillium expansum was isolated in large amounts (25% RD), followed by Botrytis (21% RD), Alternaria (16% RD), and Hanseniaspora uvarum (15% RD) of all the isolates. Our results corroborate the findings of Felšöciová, Kačániová and Vrábel (2020) in which 26 % of isolates were Penicillium and 21% Alternaria from 9 white grapes from Vrbové during the harvest 2019. Alternaria was also one of the main fungal genera isolated from Tunisian grape berries A total of 113 isolates of microscopic fungi belonging to 10 genera and Mycelia sterilia were obtained from endogenous mycobiota (7 from filamentous fungi and 3 from yeasts).…”

Section: Resultssupporting

confidence: 91%

The diversity of fungal population from grape harvest to young wine in Small Carpathian wine region

Felšöciová

Sabo

Galovičová

et al. 2021

Potr. S. J. F. Sci.

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The study aimed to identify the filamentous fungi and yeast mycobiota found on the surface and in grapes, grape must, and wine obtained from four red grape varieties: Alibernet, Dornfelder, Blue Frankish, Cabernet Sauvignon, and four white grape varieties: Green Veltliner, Rheinriesling, Pinot Blanc, Sauvignon. Grapes from vineyard Vrbové located in southwestern Slovakia were used for the research in 2020. The identification of filamentous fungi was performed using the macroscopic and microscopic observations and yeasts were identified by MALDI-TOF Mass Spectrometer. A total of 642 isolates were obtained. Grapes were rich in diversity of filamentous fungi (13 genera) and must on yeasts (8 genera). Penicillium, Botrytis, and Hanseniaspora uvarum were identified in both grapes and must. Three of the fungal genera identified by conventional or molecular techniques from the surface of red grape varieties were predominant: Alternaria (26%), Botrytis (21%), and Issatchenkia terricola (13%), two from endogenous mycobiota: Hanseniaspora uvarum (45%) and Botrytis (17%), four from the surface of white grape varieties: Penicillium (25%), Botrytis (21%), Alternaria (16%) and Hanseniaspora uvarum (15%), and three from endogenous mycobiota: Botrytis (44%), Hanseniaspora uvarum (23%) and Alternaria (20%). Saccharomyces cerevisiae, Candida krusei, C. utilis, and Cryptococcus neoformans were identified only in wine.

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Section: Resultssupporting

confidence: 91%

The diversity of fungal population from grape harvest to young wine in Small Carpathian wine region

Felšöciová

Sabo

Galovičová

et al. 2021

Potr. S. J. F. Sci.

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“…Penicillium expansum is common in certain wine regions such as the bordering regions in northern Portugal and Galiza (Spain)(Serra et al, 2006). Penicillium expansum dominated in the Müller Thurgau variety, Blaufränkisch, Seteasca Regala, Rheinriesling, and Palava from the area of the Small Carpathians, Slovakia(Felšöciová et al, 2020). In our case, Penicillium expansum occurred only once.…”

mentioning

confidence: 48%

“…Rhizopus was the second most abundant genus of 93% but a low relative density (5%). The most frequently occurring genera in grapes in the same vineyard, but one year later, were again Alternaria and Rhizopus (92%, each), followed by Cladosporium (85%), Penicillium (77%), Botrytis, and Epicoccum (54%, each)(Felšöciová et al, 2020).…”

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confidence: 94%

Mycocenosis of Grape Berries Cultivated in the Central Slovak Wine Region

Felšöciová

Arvayova²

2022

J microb biotech food sci

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Eleven samples of grapes from the Central Slovak wine-growing region were examined at the time of harvest in 2021 using the plating method and the plating method with surface disinfection. Plates were incubated aerobically at 25±1 °C in the dark for one week. Identification of fungi was based on morphological and microscopic characteristics. Of the 574 strains detected and identified in the exogenous mycobiota, the most common genus was Alternaria (90.9%), followed by Aspergillus (72.7%), Cladosporium, Penicillium, and Rhizopus (63.6%, each). The most abundant genera found by descending order were Alternaria (53.3%), Rhizopus (9.4%), Aspergillus (5.5%) and only in minor percentage by Penicillium (3%), among others. Of the 512 strains detected and identified in the endogenous mycobiota, the most common genus was Alternaria (100%), followed by Rhizopus (81.8%), Penicillium (72.7%), Aspergillus (63.6%), Cladosporium (45.5%), and Epicoccum (27.3%). The most abundant genera were Alternaria (61.1%), Cladosporium (13.1%), Aspergillus (11.7%), and Rhizopus (9%). The major fungal species isolated from the genera Aspergillus and Penicillium were Aspergillus section Nigri and Penicillium glabrum. Potentially toxigenic Aspergillus and Penicillium species were evaluated for toxinogenicity by thin-layer chromatography. Positive toxinogenity was found for all strains of Aspergillus clavatus tested and for almost all strains of Penicillium expansum and P. crustosum. Out of the two Aspergillus flavus isolates tested, none produced AFB1, AFG1, and CPA. Ochratoxigenic microfungi did not produce OTA.

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“…This necrotrophic phytopathogenic fungus is ubiquitous, and climate conditions including mean temperature, humidity, and precipitation are considered the main variables influencing the botrytization process [ 31 , 32 ]. Rhizopus was found to be the main components of the wine grape mycobiota in Tokaj grape berries of Slovak regions and part of the fungal community in Slovakian wine grapes from small Carpathians wine region [ 33 , 34 , 35 ]. Some species of this genus provoke Rhizopus rot, common on soft fruits, more abundant in warm, humid climates than in cool climate viticulture.…”

Section: Discussionmentioning

confidence: 99%

Identifying the Main Drivers in Microbial Diversity for Cabernet Sauvignon Cultivars from Europe to South Africa: Evidence for a Cultivar-Specific Microbial Fingerprint

Tronchoni

Setati

Fracassetti

et al. 2022

JoF

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Microbial diversity in vineyards and in grapes has generated significant scientific interest. From a biotechnological perspective, vineyard and grape biodiversity has been shown to impact soil, vine, and grape health and to determine the fermentation microbiome and the final character of wine. Thus, an understanding of the drivers that are responsible for the differences in vineyard and grape microbiota is required. The impact of soil and climate, as well as of viticultural practices in geographically delimited areas, have been reported. However, the limited scale makes the identification of generally applicable drivers of microbial biodiversity and of specific microbial fingerprints challenging. The comparison and meta-analysis of different datasets is furthermore complicated by differences in sampling and in methodology. Here we present data from a wide-ranging coordinated approach, using standardized sampling and data generation and analysis, involving four countries with different climates and viticultural traditions. The data confirm the existence of a grape core microbial consortium, but also provide evidence for country-specific microbiota and suggest the existence of a cultivar-specific microbial fingerprint for Cabernet Sauvignon grape. This study puts in evidence new insight of the grape microbial community in two continents and the importance of both location and cultivar for the definition of the grape microbiome.

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Survey of mycobiota on Slovakian wine grapes from Small Carpathians wine region

Cited by 4 publications

References 40 publications

The diversity of fungal population from grape harvest to young wine in Small Carpathian wine region

The diversity of fungal population from grape harvest to young wine in Small Carpathian wine region

Mycocenosis of Grape Berries Cultivated in the Central Slovak Wine Region

Identifying the Main Drivers in Microbial Diversity for Cabernet Sauvignon Cultivars from Europe to South Africa: Evidence for a Cultivar-Specific Microbial Fingerprint

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