Parabacteroides distasonis str. 3776 Po2 i

Parabacteroides distasonis str. 3776 Po2 i is a Gram-positive, rod-shaped bacterium that is nonsporulating and exhibits an anaerobic lifestyle, primarily residing in host-associated environments. This microbe is part of the complex microbial communities found in the gastrointestinal tracts of various hosts, where it plays a role in the fermentation of dietary fibers and production of short-chain fatty acids, which are beneficial for host health. As an anaerobe, P. distasonis str. 3776 Po2 i thrives in low-oxygen conditions, which are typical of the intestinal environment, allowing it to outcompete other microbial species for resources. Its nonsporulating nature suggests that it relies on other survival strategies, such as metabolic flexibility, to withstand the fluctuating conditions within the gut ecosystem. Additionally, the presence of P. distasonis in the gut microbiome may contribute to the maintenance of gut homeostasis and influence host metabolic processes. Understanding the functional capabilities and interactions of this strain within the gut microbiota could provide insights into its potential roles in digestive health and disease. Given its association with host environments, P. distasonis str. 3776 Po2 i may also serve as a model organism for studying host-microbe interactions and the implications of anaerobic bacteria in human health.