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Antonie Van Leeuwenhoek. 1987;53(2):77-84.

Three newly delimited species of Saccharomyces sensu stricto.

Author information

1
Dipartimento di Biologia Vegetale, Università degli Studi, Perugia, Italy.

Abstract

Deoxyribonucleic acid reassociation studies of 24 different wine and beer-associated strains of Saccharomyces confirmed the presence of three separate species. S. cerevisiae and S. bayanus strains had only 22% of their genomes in common. S. pastorianus, with intermediate hybridization values between S. cerevisiae and S. bayanus (52 and 72%, respectively) could possibly be a natural hybrid of the two species. S. pastorianus replaces S. carlsbergensis with which it is homologous for 93% of its genome, since the former species was described first by Hansen in 1904. These data do not agree with the results of traditional physiological tests.

PMID:
3662481
DOI:
10.1007/bf00419503
[Indexed for MEDLINE]

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