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Looking at the Origin: Some Insights into the General and Fermentative Microbiota of Vineyard Soils

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Alonso Conde, Rafael Alejandro and Celis Rodríguez, Miguel de and Ruiz Ruiz, Javier and Vicente Sánchez, Javier and Navascués, Eva and Acedo, Alberto and Ortiz-Álvarez, Rüdiger and Belda, Ignacio and Santos de la Sen, Antonio and Gómez Flechoso, María Angeles and Marquina Díaz, Domingo (2019) Looking at the Origin: Some Insights into the General and Fermentative Microbiota of Vineyard Soils. Fermentation, 5 (3). p. 78. ISSN 2311-5637

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Official URL: https://doi.org/10.3390/fermentation5030078




Abstract

In winemaking processes, there is a current tendency to develop spontaneous fermentations taking advantage of the metabolic diversity of derived from the great microbial diversity present in grape musts. This enological practice enhances wine complexity, but undesirable consequences or deviations could appear on wine quality. Soil is a reservoir of important microorganisms for different beneficial processes, especially for plant nutrition, but it is also the origin of many of the phytopathogenic microorganisms that affect vines. In this study, a meta-taxonomic analysis of the microbial communities inhabiting vineyard soils was realized. A significant impact of the soil type and climate aspects (seasonal patterns) was observed in terms of alpha and beta bacterial diversity, but fungal populations appeared as more stable communities in vineyard soils, especially in terms of alpha diversity. Focusing on the presence and abundance of wine-related microorganisms present in the studied soils, some seasonal and soil-dependent patterns were observed. The Lactobacillaceae family, containing species responsible for the malolactic fermentation, was only present in non-calcareous soils samples and during the summer season. The study of wine-related fungi indicated that the Debaryomycetaceae family dominates the winter yeast population, whereas the Saccharomycetaceae family, containing the most important fermentative yeast species for winemaking, was detected as dominant in summer.


Item Type:Article
Uncontrolled Keywords:meta-taxonomic analysis; vineyard soil; wine-related bacteria; wine-related fungi
Subjects:Medical sciences > Biology > Molecular biology
Medical sciences > Biology > Soil science
ID Code:64386
Deposited On:22 Mar 2021 16:18
Last Modified:22 Mar 2021 17:51

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