Bifidobacterium breve strain NRBB57

Bifidobacterium breve strain NRBB57 is a Gram-positive, anaerobic bacterium characterized by its rod shape and the presence of flagella. This strain is primarily found in the gastrointestinal tract, specifically within the gut microbiota of healthy newborns, and is notably present in human breast milk. Its habitat includes the intestines of infants, where it plays a crucial role in the development of the gut microbiome. Bifidobacterium breve is nonsporulating and has a single replicon, indicating a stable genomic structure that may contribute to its adaptability in the infant gut environment. The presence of this strain in breast milk highlights its importance in early nutrition and the establishment of a healthy microbiota in newborns. The ecological role of Bifidobacterium breve NRBB57 in the infant intestine is significant as it is associated with promoting gut health and potentially influencing immune system development. By colonizing the gut, this bacterium can help in the digestion of complex carbohydrates, producing beneficial short-chain fatty acids that support overall gut function and health. The presence of Bifidobacterium breve in the microbiota of healthy newborns suggests its vital contribution to the establishment of a balanced gut ecosystem during the critical early stages of life.