Título:
Genome sequencing and oenologically relevant traits of the Uruguayan native yeast Issatchenkia terricola
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Autor:
Dourron, Juliette
Ovalle, Stefani de
González Pombo, Amalia
Villarino, Andrea
Ramón, Ana
Costábile Cristech, Alicia
Ovalle, Stefani de
González Pombo, Amalia
Villarino, Andrea
Ramón, Ana
Costábile Cristech, Alicia
Tutor:
Tipo de documento:
Artículo
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Palabras clave:
Genome
Non-Saccharomyces
Issatchenkia terricola
Metabolism
Wine
Non-Saccharomyces
Issatchenkia terricola
Metabolism
Wine
Descriptores:
Año de publicación:
2022
Contenido:
Resumen:
Issatchenkia terricola 0621 is a non-Saccharomyces yeast strain isolated from Tannat grapes from Uruguayan vineyards; it stands out for its ability to produce high levels of β-glucosidase activity, which contributes to the aromatic complexity of wines. To delve into the potential oenological applications of this strain, its high-quality genome was obtained and explored, allowing the main central carbon and nitrogen metabolic pathways to be reconstructed. I. terricola is able to utilise glycerol as the sole carbon source in a way that has not previously been described for yeasts. The genes of the fermentome and those involved in stress resistance during winemaking were also identified, and differences were found when compared to S. cerevisiae, which may explain why I. terricola is unable to complete fermentation. The pathways responsible for natural aroma synthesis were also reconstructed, and the production of aromatic acids, alcohols, esters, acetates and lactones was verified experimentally. Finally, sequences encoding for β-glucosidases, in addition to the previously characterised one, were identified in the genome. The work presented here lays the groundwork for experimental research focused on the dissection of the metabolism of a native non-Saccharomyces strain and its application for oenological and biotechnological purposes.
Descripción:
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Editorial:
International Viticulture and Enology Society
EN:
OENO One, 2022, 56(3): 103–119.
Financiadores:
ANII: FMV_1_2017_1_136574
Citación:
Dourron, J, Ovalle, S, González Pombo, A [y otros autores]. "Genome sequencing and oenologically relevant traits of the Uruguayan native yeast Issatchenkia terricola". OENO One. [en línea] 2022, 56(3): 103–119. 17 h.
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ISSN:
2494-1271
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Licencia:
Licencia Creative Commons Atribución (CC - By 4.0)
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| Ficheros | Descripción | Tamaño | Formato | ||
|---|---|---|---|---|---|
| 1020870oenoone202256.35581.pdf | — | 4.12 MB | Adobe PDF |