Lactobacillus jensenii

**Semantic type:** Bacterium

**Definition:** A species of facultatively anaerobic, Gram positive, rod shaped bacteria in the phylum Firmicutes. This species is obligately homofermentative, requires pyridoxal for growth in culture and ferments trehalose and esculin but not lactose. L. jensenii is a colonizer of the healthy vaginal tract and inhibits the growth of gonococcal organisms therein, but may be pathogenic in immunocompromised individuals.

**Synonyms:** - LACTOBACILLUS JENSENII