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Non-canonical regulation of glutathione and trehalose biosynthesis characterizes non-Saccharomyces wine yeasts with poor performance in active dry yeast production

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Non-canonical regulation of glutathione and trehalose biosynthesis characterizes non-Saccharomyces wine yeasts with poor performance in active dry yeast production

dc.contributor.author	Gamero Sandemetrio, Esther
dc.contributor.author	Payá Tormo, Lucía
dc.contributor.author	Gómez Pastor, Rocío
dc.contributor.author	Aranda Fernández, Agustín
dc.contributor.author	Matallana Redondo, Emilia
dc.date.accessioned	2019-05-09T14:13:29Z
dc.date.available	2019-05-09T14:13:29Z
dc.date.issued	2018
dc.identifier.citation	Gamero Sandemetrio, Esther Payá Tormo, Lucía Gómez Pastor, Rocío Aranda Fernández, Agustín Matallana Redondo, Emilia 2018 Non-canonical regulation of glutathione and trehalose biosynthesis characterizes non-Saccharomyces wine yeasts with poor performance in active dry yeast production Microbial Cell 5 4 184 197
dc.identifier.uri	http://hdl.handle.net/10550/70122
dc.description.abstract	Several yeast species, belonging to Saccharomyces and non-Saccharomyces genera, play fundamental roles during spontaneous must grape fermentation, and recent studies have shown that mixed fermenta-tions, co-inoculated with S. cerevisiae and non-Saccharomyces strains, can improve wine organoleptic properties. During active dry yeast (ADY) produc-tion, antioxidant systems play an essential role in yeast survival and vitality as both biomass propagation and dehydration cause cellular oxidative stress and negatively affect technological performance. Mechanisms for adaptation and resistance to desiccation have been described for S. cerevisiae, but no data are available on the physiology and oxidative stress response of non-Saccharomyces wine yeasts and their potential impact on ADY production. In this study we analyzed the oxidative stress response in several non-Saccharomyces yeast species by measuring the activity of reactive oxygen species (ROS) scavenging enzymes, e.g., catalase and glutathione reductase, accumulation of protective metabolites, e.g., trehalose and reduced glutathi-one (GSH), and lipid and protein oxidation levels. Our data suggest that non-canonical regulation of glutathione and trehalose biosynthesis could cause poor fermentative performance after ADY production, as it corroborates the corrective effect of antioxidant treatments, during biomass propagation, with both pure chemicals and food-grade argan oil.
dc.language.iso	eng
dc.relation.ispartof	Microbial Cell, 2018, vol. 5, num. 4, p. 184-197
dc.subject	Estrès oxidatiu
dc.subject	Vinicultura
dc.title	Non-canonical regulation of glutathione and trehalose biosynthesis characterizes non-Saccharomyces wine yeasts with poor performance in active dry yeast production
dc.type	journal article	es_ES
dc.date.updated	2019-05-09T14:13:30Z
dc.identifier.doi	10.15698/mic2018.04.624
dc.identifier.idgrec	123105
dc.rights.accessRights	open access	es_ES