Comparative Sequence Analyses of the Genes Coding for 16S rRNA of Lactobacillus casei-Related Taxa
- 1 January 1997
- journal article
- Published by Microbiology Society in International Journal of Systematic and Evolutionary Microbiology
- Vol. 47 (1) , 54-57
- https://doi.org/10.1099/00207713-47-1-54
Abstract
The primary structures of the 16S rRNA genes of the type strains of Lactobacillus casei and related taxa were determined by PCR DNA-sequencing methods. The sequences of Lactobacillus casei, Lactobacillus zeae, Lactobacillus paracasei, and Lactobacillus rhamnosus were different. The K nuc values ranged from 0.0040 to 0.0126. On the basis of the K nuc values and the levels of DNA-DNA relatedness among the strains of these species, the L. casei-related taxa should be classified in the following three species: L. zeae, which includes the type strains of L. zeae and L. casei; a species that includes the strains of L. paracasei and L. casei ATCC 334; and L. rhamnosus.Keywords
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