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The cross talk occurring between bifidobacteria in the mammalian's gut microbiota

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Bifidobacterium longum subsp. infantis ATCC 15697 = JCM 1222 = DSM 20088 Bifidobacterium adolescentis Bifidobacterium breve 12L Bifidobacterium bifidum PRL2010

PROVIDER: GSE65829 | GEO | 2017/08/23

SECONDARY ACCESSION(S): PRJNA275200

REPOSITORIES: GEO

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The cross talk occurring between bifidobacteria in the mammalian’s gut microbiota [PRL]

Project description:We describe the molecular cross talk established under in vivo conditions between a set of human gut bifidobacterial commensals. Eleven groups of five conventional female 8-wk-old BALB/c mice taking a standard polysaccharide-rich Chow diet were administered a single daily dose of 109 CFU of either B. bifidum PRL2010, B. breve 12L , B. adolescentis 22L , B. longum subsp. infantis ATCC15697, or bifidobacterial couples, i.e., PRL2010-12L, PRL2010-22L, PRL2010-ATCC15696, 12L-22L, 12L-ATCC15697, 22L-ATCC15697, or a combination of all bifidobacterial strains. The transcriptome of bifidobacterial strains under in vivo conditions was analyzed. The transcripts expressed in B. bifidum PRL2010, B. breve 12L, B. adolescentis 22L and B. longum subsp. infantis ATCC15697 were profiled using a custom-made PRL2010-12L-22L-ATCC15697 (multibifido)-array representing 100%, 99%, 96%, 99% of the identified genes of these organisms, respectively.The observed functional changes in the trascriptomes of bifidobacteria might be caused by the possible shifts of the mice cecum microbiota upon colonization with bifidobacteria. Thus, we assessed if the presence of B. bifidum PRL2010, B. breve 12L, B. adolescentis 22L and B. longum subsp. infantis ATCC15697 on mono-, bi- or multi-association in the cecum of mice affects the overall composition of the microbiota of this environment.

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