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Functional genome analysis of Bifidobacterium breve UCC2003 reveals type IVb tight adherence (Tad) pili as an essential and conserved host-colonization factor
Development of the human gut microbiota commences at birth, with bifidobacteria being among the first colonizers of the sterile newborn gastrointestinal tract. To date, the genetic basis ofExpand
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Selective carbohydrate utilization by lactobacilli and bifidobacteria
To evaluate the ability of specific carbohydrates, including commercially available products, to support the growth of representatives of two well‐known groups of gut commensals, namely lactobacilliExpand
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Diversity, ecology and intestinal function of bifidobacteria
The human gastrointestinal tract represents an environment which is a densely populated home for a microbiota that has evolved to positively contribute to host health. At birth the essentiallyExpand
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Characterization of ApuB, an Extracellular Type II Amylopullulanase from Bifidobacterium breve UCC2003
ABSTRACT The apuB gene of Bifidobacterium breve UCC2003 was shown to encode an extracellular amylopullulanase. ApuB is composed of a distinct N-terminally located α-amylase-containing domain whichExpand
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Transcriptional and functional characterization of genetic elements involved in galacto-oligosaccharide utilization by Bifidobacterium breve UCC2003
Several prebiotics, such as inulin, fructo‐oligosaccharides and galacto‐oligosaccharides, are widely used commercially in foods and there is convincing evidence, in particular forExpand
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Role of sortase-dependent pili of Bifidobacterium bifidum PRL2010 in modulating bacterium–host interactions
Bifidobacteria represent one of the dominant groups of microorganisms colonizing the human infant intestine. Commensal bacteria that interact with a eukaryotic host are believed to express adhesiveExpand
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Genetic analysis and morphological identification of pilus-like structures in members of the genus Bifidobacterium
BackgroundCell surface pili in Gram positive bacteria have been reported to orchestrate the colonization of host tissues, evasion of immunity and the development of biofilms. So far, little if anyExpand
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Autoinducer-2 Plays a Crucial Role in Gut Colonization and Probiotic Functionality of Bifidobacterium breve UCC2003
In the present study we show that luxS of Bifidobacterium breve UCC2003 is involved in the production of the interspecies signaling molecule autoinducer-2 (AI-2), and that this gene is essential forExpand
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Overcoming the restriction barrier to plasmid transformation and targeted mutagenesis in Bifidobacterium breve UCC2003
In silico analysis of the Bifidobacterium breve UCC2003 genome predicted two distinct loci, which encode three different restriction/modification systems, each comprising a modification methylase andExpand
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Pangenome analysis of Bifidobacterium longum and site-directed mutagenesis through by-pass of restriction-modification systems
BackgroundBifidobacterial genome analysis has provided insights as to how these gut commensals adapt to and persist in the human GIT, while also revealing genetic diversity among members of a givenExpand
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