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diversity of human colonic butyrate-producing bacteria revealed by analysis of the butyryl-coa:acetate coa-transferase gene.butyrate-producing bacteria play an important role in the human colon, supplying energy to the gut epithelium and regulating host cell responses. in order to explore the diversity and culturability of this functional group, we designed degenerate primers to amplify butyryl-coa:acetate coa-transferase sequences from faecal samples provided by 10 healthy volunteers. eighty-eight per cent of amplified sequences showed >98% dna sequence identity to coa-transferases from cultured butyrate-producing b ...201019807780
two routes of metabolic cross-feeding between bifidobacterium adolescentis and butyrate-producing anaerobes from the human gut.dietary carbohydrates have the potential to influence diverse functional groups of bacteria within the human large intestine. of 12 bifidobacterium strains of human gut origin from seven species tested, four grew in pure culture on starch and nine on fructo-oligosaccharides. the potential for metabolic cross-feeding between bifidobacterium adolescentis and lactate-utilizing, butyrate-producing firmicute bacteria related to eubacterium hallii and anaerostipes caccae was investigated in vitro. e. ...200616672507
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