Agathobacter rectalis strain AF18-16LB

Agathobacter rectalis strain AF18-16LB is a Gram-positive, anaerobic, non-motile rod-shaped bacterium that serves as a chemoheterotroph, deriving its energy from organic compounds. This strain is part of the diverse microbial community found within multiple habitats, including the human gut, where it has a specific relationship with Homo sapiens. The bacterium is characterized by a single replicon and a single membrane, indicating a relatively simple cellular structure. It does not form spores, which suggests that it may rely on other survival strategies in its anaerobic environment. The optimal growth temperature for A. rectalis strain AF18-16LB is 37°C, placing it in the mesophilic temperature range, which is typical for many microorganisms associated with warm-blooded hosts. One notable aspect of this strain is its role in the gut microbiome of humans, where it may contribute to various biological functions, including the fermentation of dietary fibers and the production of short-chain fatty acids. These metabolic activities are crucial for maintaining gut health and influencing host metabolism. As a free-living organism, A. rectalis strain AF18-16LB exemplifies the complexities of microbial interactions within the gastrointestinal tract, highlighting the importance of anaerobic bacteria in human health and the intricate balance of gut ecosystems.