1887

Abstract

Six strains of lactic acid bacteria isolated from sourdough were characterized taxonomically. They were Gram-positive, catalase-negative, facultatively anaerobic rods that did not produce gas from glucose. Morphological and physiological data indicated that the strains belong to the genus and they were similar to in phenotypic characteristics. These strains shared the same phenotypic characteristics and exhibited intragroup DNA homology values of over 89.8%, indicating that they comprised a single species. The G+C content of the DNA for the strains was 37.2-38.0 mol%. The 16S rRNA sequence of representative strain TB 1 was determined and aligned with that of other . This strain was placed in the genus on the basis of phylogenetic analysis. was the most closely related species in the phylogenetic tree and this species also showed the highest sequence homology value (96%) with strain TB 1. DNA-DNA hybridization indicated that strain TB 1 did not belong to . It is proposed that these strains are placed in the genus as a new species, sp. nov. The type strain of is TB 1, which has been deposited in the Japan Collection of Microorganisms (JCM) as strain JCM 10415.

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1999-10-01
2024-05-26
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