Bacteroides fragilis str. 3774 T13

Bacteroides fragilis str. 3774 T13 is a Gram-negative, rod-shaped bacterium classified as a chemoorganotroph, meaning it derives energy from organic compounds. It is an anaerobe, thriving in environments devoid of oxygen, and typically exists as single cells rather than in clusters. This strain is notable for its optimal growth temperature of 37°C, placing it within the mesophilic temperature range. The bacterium possesses two membranes, characteristic of Gram-negative organisms, and has a single replicon, indicating a streamlined genetic structure. Bacteroides fragilis str. 3774 T13 does not exhibit mobility, implying a sedentary lifestyle within its host-associated habitat. While it is free-living, its ecological niche suggests a relationship with a host organism, potentially influencing the microbial community within the host's gastrointestinal tract. The presence of flagella indicates that it may have the potential for movement in certain contexts, although its lack of mobility in its current form suggests it relies on environmental factors for distribution. These traits highlight the adaptability of Bacteroides fragilis str. 3774 T13 in anaerobic environments, where it likely plays a role in digestion and nutrient cycling. In summary, Bacteroides fragilis str. 3774 T13 exemplifies the complex interactions of anaerobic bacteria within host-associated environments, contributing to the overall health and function of the microbiome while underscoring the importance of anaerobic organisms in nutrient metabolism in mesophilic conditions.