Bacteroides fragilis str. 20793-3

Bacteroides fragilis str. 20793-3 is a Gram-negative, rod-shaped bacterium that is classified as a chemoorganotroph, deriving its energy from organic compounds. This species is an anaerobe, thriving in environments devoid of oxygen, and is typically found in host-associated habitats. Bacteroides fragilis str. 20793-3 has a single cell arrangement and is characterized by the presence of flagella, although it is non-motile. The optimal growth temperature for this strain is 37°C, placing it within the mesophilic temperature range. It possesses a unique cellular structure, consisting of two membranes and a single replicon, which is indicative of its genetic organization. Bacteroides fragilis is known for its role in the human gut microbiota, contributing to a balanced microbial community and playing a crucial role in digestion and nutrient absorption. Its ability to thrive in anaerobic conditions highlights its adaptation to the gastrointestinal environment, where oxygen levels are low. The free-living nature of this bacterium allows it to interact with various substrates and contribute to the breakdown of complex carbohydrates, thereby participating in vital ecological processes within the host. This strain, cataloged under the accession number JGEF00000000.1, emphasizes the importance of Bacteroides fragilis in maintaining gut health and its potential role in influencing host metabolism and immune responses.