Genotypic and phenotypic characterization of Lactobacillus casei strains isolated from different ecological niches suggests frequent recombination and niche specificity.

Abstract excerpt

Lactobacillus casei strains are lactic acid bacteria (LAB) that colonize diverse ecological niches, and have broad commercial applications. To probe their evolution and phylogeny, 40 L. casei strains were characterized; the strains included isolates from plant materials (n=9), human gastrointestinal tracts (n=7), human blood (n=1), cheeses from different geographical locations (n=22), and one strain of unknown...

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