yeasts

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yeasts A group of unicellular fungi within the class Hemiascomycetae of the phylum Ascomycota. They occur as single cells or as groups or chains of cells; yeasts reproduce asexually by budding and sexually by producing ascospores. Yeasts of the genus Saccharomyces ferment sugars and are used in the baking and brewing industries (see baker's yeast).

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