Bifidobacterium longum subsp. longum 17-1B seq20

Bifidobacterium longum subsp. longum 17-1B seq20 is a Gram-positive, non-pathogenic microorganism belonging to the family of bifidobacteria. This species is characterized by its rod shape and typically arranges itself in clusters, pairs, and singles. As an anaerobe, B. longum subsp. longum 17-1B seq20 requires an oxygen-free environment for optimal growth, with an optimal temperature of 37°C, placing it within the mesophilic temperature range. This bacterium is notable for its free-living biotic relationship and is found associated with a variety of hosts, including Homo sapiens, Metazoa, Sus scrofa, Insecta, Primates, Mammalia, and Vertebrata. Despite its presence in diverse biological systems, it is known to have potential health effects, including the rare occurrence of bacteraemia. However, it is important to note that this strain is classified as non-pathogenic and does not undergo sporulation, which limits its survival mechanisms under adverse conditions. The presence of flagella indicates some degree of motility; however, B. longum subsp. longum 17-1B seq20 is reported to be immobile. The strain has a single replicon and one membrane, characteristics that are typical for this genus. In summary, Bifidobacterium longum subsp. longum 17-1B seq20 exemplifies a stable and non-pathogenic member of the gut microbiota with a broad range of host associations, highlighting its ecological significance in maintaining microbial diversity and stability in the gastrointestinal tract of various organisms.