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Title

Proteomic characterization of extracellular vesicles produced by several wine yeast species

AuthorsMencher-Beltrán, Ana; Morales, Pilar ; Valero, Eva; Tronchoni, Jordi ; Patil, Kiran R.; González García, Ramón
Issue Date23-Jun-2020
PublisherJohn Wiley & Sons
CitationMicrobial Biotechnology 0: 1–16 (2020)
AbstractIn winemaking, the use of alternative yeast starters is becoming increasingly popular. They contribute to the diversity and complexity of wine sensory features and are typically used in combination with Saccharomyces cerevisiae , to ensure complete fermentation. This practice has drawn the interest on interactions between different oenological yeasts, which are also relevant in spontaneous and conventional fermentations, or in the vineyard. Although several interactions have been described and some mechanisms have been suggested, the possible involvement of extracellular vesicles (EVs) has not yet been considered. This work describes the production of EVs by six wine yeast species (S. cerevisiae , Torulaspora delbrueckii , Lachancea thermotolerans , Hanseniaspora uvarum , Candida sake and Metschnikowia pulcherrima ) in synthetic grape must. Proteomic analysis of EV‐enriched fractions from S. cerevisiae and T. delbrueckii showed enrichment in glycolytic enzymes and cell‐wall‐related proteins. The most abundant protein found in S. cerevisiae , T. delbrueckii and L. thermotolerans EV‐enriched fractions was the enzyme exo‐1,3‐β‐glucanase. However, this protein was not involved in the here‐observed negative impact of T. delbrueckii extracellular fractions on the growth of other yeast species. These findings suggest that EVs may play a role in fungal interactions during wine fermentation and other aspects of wine yeast biology.
Publisher version (URL)http://dx.doi.org/10.1111/1751-7915.13614
URIhttp://hdl.handle.net/10261/216383
DOI10.1111/1751-7915.13614
ISSN1751-7915
Appears in Collections:(ICVV) Artículos
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