Lactobacillus capillatus sp. nov., a motile bacterium isolated from stinky tofu brine

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Abstract
Three Gram-positive, catalase-negative, motile, rod-shaped bacteria were isolated from fermented stinky tofu brine. These strains, designated YIT 11306T, YIT 11317 and YIT 11318, were discriminated from five isolates on the basis of randomly amplified polymorphic DNA profiles. They produced l-lactic acid as the main end product from glucose without gas formation, synthesized dextran from sucrose and hydrolysed aesculin. Ammonia was not produced from arginine. Comparative 16S rRNA gene sequence analysis demonstrated that the novel isolates were members of the genus Lactobacillus. Based on levels of 16S rRNA gene sequence similarity, the three novel strains were related most closely to the type strains of Lactobacillus mali (97.2 %) and Lactobacillus satsumensis (96.8 %). However, levels of DNA–DNA relatedness between the novel isolates and the type strains of L. mali and L. satsumensis were less than 10 %. The phenotypic and genotypic data demonstrate that the three strains represent a single novel species of the genus Lactobacillus, for which the name Lactobacillus capillatus sp. nov. is proposed. The type strain is YIT 11306T (=JCM 15044T=BCRC 17811T=DSM 19910T).

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