In the present study we show that lux S of Bifidobacterium breve UCC2003 is involved in the
production of the interspecies signaling molecule autoinducer-2 (AI-2), and that this gene is …

Bifidobacteria constitute a substantial proportion of the human gut microbiota. There are
currently many bifidobacterial strains with claimed probiotic attributes. The mechanism …

Autoinducer-2 (AI-2) molecules are one class of signalling molecules involved in gene
regulation dependent on population density in a mechanism commonly referred to as …

Background Probiotics such as bifidobacteria have been shown to maintain a healthy
intestinal microbial balance and help protect against infections. However, despite these …

The effect of Bifidobacterium spp. on the production of quorum-sensing (QS) signals and
biofilm formation by enterohemorrhagic Escherichia coli (EHEC) O157: H7 was investigated …

Members of the genus Bifidobacterium are commonly found in the gastrointestinal tracts of
mammals, including humans, where their growth is presumed to be dependent on various …

Bifidobacteria are Gram-positive prokaryotes that naturally colonize the human
gastrointestinal tract (GIT) and vagina. Although not numerically dominant in the complex …

This work reports on the identification and molecular characterization of a two-component
regulatory system (2CRS), encoded by serRK, which is believed to control the expression of …

Bifidobacteria comprise a significant proportion of the human gut microbiota. Several
bifidobacterial strains are currently used as therapeutic interventions, claiming various …

To investigate the molecular mechanisms underlying the adaptation of Bifidobacterium
longum to the intestinal tract, we utilized a new model for rabbit intestinal culture of B …