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The interest in  Lachancea thermotolerans , a yeast species with unusual characteristics, has notably increased in all ecological, evolutionary, and industrial aspects. One of the key characteristics of  L. thermotolerans  is the production of high quantities of lactic acid compared to other yeast species. Its evolution has mainly been driven by the influence of the environment and domestication, allowing several metabolic traits to arise. The molecular regulation of the fermentative process in  L. thermotolerans  shows interesting routes that play a complementary or protective role against fermentative stresses. One route that is activated under this condition is involved in the production of lactic acid, presenting a complete system for its production, showing the involvement of several enzymes and transporters. In winemaking, the use of  L. thermotolerans  is nowadays mostly focused in early–medium-maturity grape varieties, in which over-ripening can produce wines lacking acidity and with high concentrations of ethanol. Recent studies have reported new positive influences on quality apart from lactic acid acidification, such as improvements in color, glutathione production, aroma, malic acid, polysaccharides, or specific enzymatic activities that constitute interesting new criteria for selecting better strains. This positive influence on winemaking has increased the availability of commercial strains during recent years, allowing comparisons among some of those products. Initially, the management of  L. thermotolerans  was thought to be combined with  Saccaharomyces cerevisiae  to properly end alcoholic fermentation, but new studies are innovating and reporting combinations with other key enological microorganisms such as  Schizosaccharomyces pombe ,  Oenocous oeni ,  Lactiplantibacillus plantarum , or other non- Saccharomyces .

An Integrative View of the Role of Lachancea thermotolerans in Wine Technology