Bacteroides fragilis 638R

Bacteroides fragilis 638R is a gram-negative, rod-shaped bacterium that is classified as a chemoorganotroph, utilizing organic compounds as its energy source. This species is characterized by its anaerobic lifestyle, thriving in environments devoid of oxygen. B. fragilis 638R is typically found in host-associated habitats, indicating a close relationship with its host organisms, which include humans and other animals. The bacterium is non-motile and does not possess flagella, which suggests that it relies on other means for spatial distribution within its ecological niche. B. fragilis 638R exists as single cells rather than forming clusters or chains, which may influence its interactions with other microorganisms in the gastrointestinal tract. Optimal growth of B. fragilis 638R occurs at a temperature of 37°C, aligning with the typical body temperature of its host, and it is classified as mesophilic, indicating a preference for moderate temperature ranges. The organism possesses a complex cell structure, characterized by two membranes, which is a common trait among gram-negative bacteria. It contains one replicon, which simplifies its genetic maintenance. Ecologically, B. fragilis 638R plays a significant role in the gut microbiome, contributing to the breakdown of complex carbohydrates and the production of short-chain fatty acids, which are beneficial for host health. Its free-living nature, coupled with its adaptation to anaerobic conditions, underscores its importance in maintaining the balance of gut microbiota and supporting overall digestive health.