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''Lactobacillus fermentum'' is a Gram-positive species of bacterium in the genus ''Lactobacillus''. It is associated with active dental caries lesions.〔Dickson, ''et al.''. ("A novel species-specific PCR assay for identifying ''Lactobacillus fermentum''." ) J Med Microbiol 54 (2005), 299-303.〕 It is also commonly found in fermenting animal and plant material.〔(Online Medical Dictionary - ''Lactobacillus Fermentum'' )〕 It has been found in sourdough. A few strains are considered probiotic or "friendly" bacteria in animals 〔de F. Reque, ''et al.''. ("Isolation, Identification and Physiological Study of ''Lactobacillus fermentum'' LPB for Use as Probiotic in Chickens." ) ''Brazilian Journal of Microbiology'' (2000) 31: 303-07.〕 and at least one strain has been applied to treat urogenital infections in women.〔Gardiner, ''et al.''. ("Persistence of ''Lactobacillus fermentum'' RC-14 and ''Lactobacillus rhamnosus'' GR-1 but not ''L. rhamnosus'' GG in the human vagina as demonstrated by randomly amplified polymorphic DNA." ) Clin Diagn Lab Immunol. (2002) January; 9(1): 92–96.〕 Some strains of lactobacilli formerly classified as ''Lactobacillus fermentum'' (such as RC-14) have since been reclassified as ''Lactobacillus reuteri''.〔Kandler O., Stetter K., Kohl R. 1980. ''Lactobacillus reuteri sp. nov.'' a new species of heterofermentative lactobacilli. Zbl. Bakt. Hyg. Abt. Orig. C1:264-269.〕 Commercialized strains of ''L. fermentum'' used as probiotics include PCC〔http://www.probiomics.com.au/index.php?option=com_content&task=view&id=14&Itemid=44〕 and ME-3.〔http://www.ut.ee/en/entrepreneurship/success-stories/lactobacillus-fermentum-me3-bacteria-and-the-hellu〕 ==Characteristics== ''Lactobacillus fermentum'' belongs to the genus ''Lactobacillus''. Species in this genus are used for a wide variety of applications. These applications include food and feed fermentation. It has been found that some strains for ''Lactobacillus fermentum'' have natural resistances to certain antibiotics and chemotherapeutics. They are considered potential vectors of antibiotic resistance genes from the environment to humans or animals to humans.〔Klein, Gunter. "Antibiotic Resistance and \ Clinical Lactobacillus Strains in Relation to Safety Aspects of Probiotics." Foodborne Pathogens and Disease 8, no. 2 (2011): 267-280.〕 ''Lactobacillus fermentum'' can also be a normal inhabitant of the human intestinal tract and some strains have been associated with cholesterol metabolism.〔Mikelsaar, Marika, and Mihkel Zilmer. "Lactobacillus fermentum ME-3 An antimicrobial and antioxidative probiotic." Microbial Ecology in Health and Disease 21, no. 1 (2009): 1-27.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Lactobacillus fermentum」の詳細全文を読む スポンサード リンク
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