Taxonomy of Lactic Acid Bacteria Up-to-Date and Minimal Standards for Description of New Taxa of Lactic Acid Bacteria Recommended by Subcommittee on the Taxonomy of <i>Bifidobacterium, Lactobacillus</i> and Related Organisms

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  • 乳酸菌分類の現在とビフィズス菌・乳酸菌分類小委員会が提言した新規乳酸菌種提唱のための最少基準

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Abstract

Lactic acid bacteria (LAB) are widely used in industry for various purposes, such as probiotics and starters for fermented food and for silage, and are intensively studied. The taxonomy of LAB has changed over the last two decades because of the contribution of phylogenetic analysis, based on 16S rRNA gene sequences, to the taxonomy. The number of species proposed as novel taxa classified in the group of LAB keeps growing, and, at present, 35 genera containing over 300 species are classified in the group. The species include species which were later reclassified into another (novel) genera based on their phylogenetic positions. This has resulted in taxonomic confusion among researchers. In this review, the present taxonomy of LAB is discussed. Since Subcommittee on the Taxonomy of Bifidobacterium, Lactobacillus and Related Organisms in International Committee on Systematics of Prokaryotes has published recommended minimal standards for novel taxa in bifidobacteria and LAB, the recommendation is also introduced here.<br>

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