Bifidobacterium longum subsp. infantis 157F str. 157F-NC

Bifidobacterium longum subsp. infantis 157F str. 157F-NC is a Gram-positive, rod-shaped bacterium that typically arranges itself in clusters, pairs, or as single cells. This strain is classified as an anaerobe, indicating its requirement for environments devoid of oxygen, which aligns with its natural habitat being host-associated. Optimal growth for this microbe occurs at a temperature of 37.0°C, a condition that closely resembles the human body temperature, further emphasizing its adaptation to life within a host organism. As a member of the Bifidobacterium genus, B. longum subsp. infantis is known for its role in the human gut microbiota, particularly in infants where it contributes to gut health and development. The presence of this strain in the gastrointestinal tract is associated with various beneficial effects, including the fermentation of dietary fibers and the production of short-chain fatty acids, which can influence host metabolism and immune function. Understanding the characteristics of B. longum subsp. infantis 157F str. 157F-NC offers insight into its ecological niche and functional significance in the intestinal microbiome, particularly in early life stages. The strain's anaerobic nature and specific temperature preference suggest a highly specialized role in maintaining gut homeostasis and facilitating nutrient absorption, underscoring the intricate relationship between host and microbiota.