Bifidobacterium adolescentis strain AM12-20

Bifidobacterium adolescentis strain AM12-20 is a Gram-positive, non-motile, rod-shaped bacterium classified under the phylum Actinobacteria. This strain is an anaerobe, thriving in environments devoid of oxygen, and exhibits a mesophilic temperature range with an optimal growth temperature of 37°C. It has a single membrane and is characterized by the presence of flagella, although it does not exhibit mobility. This strain is host-associated, indicating a symbiotic relationship with various hosts, including Homo sapiens (humans), Bos taurus (cattle), Sus scrofa (pigs), and Oryctolagus cuniculus (rabbits). As a free-living organism, Bifidobacterium adolescentis AM12-20 plays a critical role in the gut microbiota of these hosts, contributing to their digestive health and overall well-being. Notably, this bacterium is non-sporulating and possesses a single replicon, which suggests a stable genomic structure conducive to its environment. The ecological significance of Bifidobacterium adolescentis strain AM12-20 lies in its potential contributions to the gut microbiome's balance, especially in relation to its host species. Understanding its interactions and functions within the gastrointestinal tract could provide insights into its role in health and disease, particularly in relation to the maintenance of gut homeostasis and the prevention of dysbiosis.