NCIt definition : A species of Gram-positive, rod shaped, anaerobic bacteria in the phylum Firmicutes.
This species is nonmotile and non spore forming. L. gasseri is found in the gastrointestinal
tract and the vaginal tract where it produces lactic acid by fermentation; it also
produces hydrogen peroxide. It is a causative agent of Fournier's gangrene.;
Alternative definition : CDISC: Any bacterial organism that can be assigned to the species Lactobacillus gasseri.;