- International Journal of Systematic and Evolutionary Microbiology
- Volume 49, Issue 1
f Phenotypic and phylogenetic characterization of a novel Lactobacillus species from human sources: description of Lactobacillus iners sp. nov.
- Authors: Enevold Falsen, Christina Pascual, Berit Sjödén, Maria Ohlén, Matthew D. Collins†
- Author for correspondence: Matthew D. Collins. Tel: +44 1189 357000. Fax: +44 1189 267917. e-mail: firstname.lastname@example.org
- Int J Syst Evol Microbiol, January 1999 49: 217-221, doi: 10.1099/00207713-49-1-217
- Subject: New Taxa - Gram-Positive Bacteria
- Published Online:
Eleven strains of a hitherto undescribed Gram-positive, catalase-negative, facultatively anaerobic rod-shaped bacterium from human sources and medica care products were characterized by phenotypic and molecular taxonomic methods. The phenotypic properties of the bacterium were consistent with its assignment to the genus Lactobacillus but it was readily distinguished from all currently described species of this genus by its biochemical characteristics and by SDS-PAGE analysis of its cellular proteins. Comparative 16S rRNA gene sequence analysis demonstrated that the unknown bacterium was a member of rRNA group I Lactobacillus which includes Lactobacillus delbrueckii, the type species of the genus, and close relatives. Lactobacillus gasseri and Lactobacillus johnsonii were the nearest phylogenetic relatives of the unknown bacterium, but 16S rRNA sequence divergence values of >4% clealy showed that it represents a distinct species. Based on both phylogenetic and phenotypic evidence, it is proposed that the unknown bacterium should be classified in the genus Lactobacillus, as Lactobacillus iners sp. nov. The type strain of Lactobacillus iners is CCUG 28746T.
The GenBank accession number for the 16S rRNA gene sequence of strain CCUG 28746Tis Y16329.
Present address: Department of Food Science & Technology, Earley Gate, University of Reading, Reading RG6 6BZ, UK.
© 1999, International Union of Microbiological Societies | Published by the Microbiology Society
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