Lactobacillus fermentum

**Semantic type:** Bacterium

**Definition:** A species of facultatively anaerobic, Gram positive, rod shaped bacteria in the phylum Firmicutes. This species is nonmotile, ferments L arabinose, esculin and sucrose, catalase negative and alpha galactosidase positive. L. fermentum is a commensal organism of the urogenital tract with probiotic activity.

**Synonyms:** - LACTOBACILLUS FERMENTUM - Lactobacillus cellobiosus