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''Lactobacillus reuteri'' is a Gram-positive bacterium that naturally inhabits the gut of mammals and birds. First described in the early 1980s, some strains of ''L. reuteri'' are used as probiotics. BioGaia AB in Sweden owns several commercially important strains and a large number of different patents for commercial usage of ''L. reuteri''. == Discovery == Though the species ''Lactobacillus reuteri'' has been recognized for some time, knowledge of its probiotic properties did not come until much later. As early as the turn of the 20th century, ''L. reuteri'' was recorded in scientific classifications of lactic acid bacteria,〔Orla-Jensen, S. 1919. The lactic acid Bacteria. Det Kongelige Danske Videnskasbernes Selskab. Naturvidenskabelige mathematiske Afdeling, NS 8.5.2〕 though at this time it was mistakenly grouped as a member of ''Lactobacillus fermentum''. In the 1960s, further work by German microbiologist Gerhard Reuter – for whom the species eventually would be named – began to distinguish ''L. reuteri'' from ''L. fermentum''. Reuter reclassified the species as "''Lactobacillus fermentum'' biotype II". ''L. reuteri'' was eventually identified as a distinct species in 1980 by Kandler ''et al''. This group found significant differences between ''L. reuteri'' and other biotypes of ''L. fermentum'', and thus proposed it be given formal species identity. They chose the species name "reuteri", after discoverer Gerhard Reuter, and ''L. reuteri'' has since been recognized as a separate species within the ''Lactobacillus'' genus. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Lactobacillus reuteri」の詳細全文を読む スポンサード リンク
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