Lactobacillus iners

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Lactobacillus iners
Scientific classification
Domain: Bacteria
Phylum: Firmicutes
Class: Bacilli
Family: Lactobacillaceae
Genus: Lactobacillus
Species: L. iners
Binomial name
Lactobacillus iners
Falsen et al. 1999

Lactobacillus iners is a species in the genus Lactobacillus. It is a Gram-positive, catalase-negative, facultatively anaerobic rod-shaped bacterium with type strain CCUG 28746T.[1] Lactobacillus iners is a normal inhabitant of the lower reproductive tract in healthy women.[2][3]


The genomes of at least 15 strains have been sequenced and encode between 1,152 and 1,506 proteins. Thus, this species has one of the smallest Lactobacillus genomes compared to other species, such as L. crispatus, which typically encodes more than twice as many proteins.[4]


  1. ^ Falsen, E.; Pascual, C.; Sjoden, B.; Ohlen, M.; Collins, M. D. (1999). "Phenotypic and phylogenetic characterization of a novel Lactobacillus species from human sources: description of Lactobacillus iners sp. nov.". International Journal of Systematic Bacteriology. 49 (1): 217–221. ISSN 0020-7713. PMID 10028266. doi:10.1099/00207713-49-1-217. 
  2. ^ Nardis, C.; Mastromarino, P.; Mosca, L. (September 2013). "Vaginal microbiota and viral sexually transmitted diseases". Annali di Igiene. 25 (5): 443–56. PMID 24048183. doi:10.7416/ai.2013.1946. 
  3. ^ Bennett, John (2015). Mandell, Douglas, and Bennett's principles and practice of infectious diseases. Philadelphia, PA: Elsevier/Saunders. ISBN 9781455748013; Access provided by the University of Pittsburgh 
  4. ^ France, Michael T.; Mendes-Soares, Helena; Forney, Larry J. (2016-12-15). "Genomic Comparisons of Lactobacillus crispatus and Lactobacillus iners Reveal Potential Ecological Drivers of Community Composition in the Vagina". Applied and Environmental Microbiology. 82 (24): 7063–7073. ISSN 0099-2240. PMC 5118917Freely accessible. PMID 27694231. doi:10.1128/AEM.02385-16. 

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