Lactic acid bacteria (LAB) are a functional group which, from a taxonomical viewpoint, is distributed in different genera and families, belonging mainly to the order Lactobacillales. The Family Lactobacillaceae includes the largest majority of GRAS species and, at present, about 200 species are ascribed to the genus Lactobacillus suggesting a diversity much larger than that recognized when analyzing only the species of applied importance. Delineation of taxonomic ranks is conventionally based on phylogenetic analysis, which does not correlate with metabolic differences. The availability of genome sequences allows to depict the evolutionary history of the different taxa more precisely than previously. In the near future, a major impact on taxonomic procedures is expected thanks to the databases and software accessibility.
Systematics of Lactic Acid Bacteria. Current Status
FELIS, Giovanna;SALVETTI, Elisa;TORRIANI, Sandra
2015-01-01
Abstract
Lactic acid bacteria (LAB) are a functional group which, from a taxonomical viewpoint, is distributed in different genera and families, belonging mainly to the order Lactobacillales. The Family Lactobacillaceae includes the largest majority of GRAS species and, at present, about 200 species are ascribed to the genus Lactobacillus suggesting a diversity much larger than that recognized when analyzing only the species of applied importance. Delineation of taxonomic ranks is conventionally based on phylogenetic analysis, which does not correlate with metabolic differences. The availability of genome sequences allows to depict the evolutionary history of the different taxa more precisely than previously. In the near future, a major impact on taxonomic procedures is expected thanks to the databases and software accessibility.
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