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Yeasts
A general term for single-celled rounded fungi that reproduce by budding. Brewers' and bakers' yeasts are SACCHAROMYCES CEREVISIAE; therapeutic dried yeast is YEAST, DRIED.
Saccharomycetales
An order of fungi in the phylum Ascomycota that multiply by budding. They include the telomorphic ascomycetous yeasts which are found in a very wide range of habitats.
Year introduced: 1999 (1963)
Schizosaccharomyces
A genus of ascomycetous fungi of the family Schizosaccharomycetaceae, order Schizosaccharomycetales.
Year introduced: 1991(1975)
Saccharomyces cerevisiae
A species of the genus SACCHAROMYCES, family Saccharomycetaceae, order Saccharomycetales, known as baker's or brewer's yeast. The dried form is used as a dietary supplement.
Year introduced: 1973(1972)