Bifidobacterium longum strain 1897B

Bifidobacterium longum strain 1897B is a Gram-positive, non-pathogenic anaerobic bacterium characterized by its rod shape and absence of mobility, as it does not possess flagella. This strain typically exists in host-associated environments, notably within the gastrointestinal tracts of various hosts, including Homo sapiens, Metazoa, Sus scrofa, Insecta, Primates, Mammalia, and Vertebrata. In terms of its cellular arrangement, B. longum strain 1897B can be found in clusters, pairs, or as single cells, which may facilitate its interactions within the gut microbiome. It thrives optimally at a temperature of 37°C, placing it within the mesophilic temperature range, which is conducive to human body conditions. B. longum strain 1897B has a single replicon and a single membrane, indicating a relatively simple cellular structure. Importantly, this strain is free-living and has been associated with health effects such as bacteraemia, though it is classified as non-pathogenic, suggesting it does not typically cause disease. The ecological role of Bifidobacterium longum strain 1897B within the microbiome may include contributing to gut health and maintaining a balanced microbial community. Its presence in various hosts underscores its potential adaptability and significance in the broader ecological context of host-associated microbiomes. Understanding such strains aids in elucidating the complexities of host-microbe interactions and their implications for health.