Molecular diversity, cultivation, and improved detection by fluorescent in situ hybridization of a dominant group of human gut bacteria related to Roseburia spp. or Eubacterium rectale

Rustam I Aminov, Alan W Walker, Sylvia H Duncan, Hermie J M Harmsen, Gjalt W Welling, Harry James Flint

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Phylogenetic analysis was used to compare 16S rRNA sequences from 19 cultured human gut strains of Roseburia and Eubacterium rectale with 356 related sequences derived from clone libraries. The cultured strains were found to represent five of the six phylotypes identified. A new oligonucleotide probe, Rrec584, and the previous group probe Rint623, when used in conjunction with a new helper oligonucleotide, each recognized an average of 7% of bacteria detected by the eubacterial probe Eub338 in feces from 10 healthy volunteers. Most of the diversity within this important group of butyrate-producing gut bacteria can apparently be retrieved through cultivation.
Original languageEnglish
Pages (from-to)6371-6376
Number of pages6
JournalApplied and Environmental Microbiology
Issue number9
Publication statusPublished - Sep 2006


  • Bacteria, Anaerobic
  • Base Sequence
  • Colony Count, Microbial
  • Digestive System
  • Eubacterium
  • Feces
  • Genes, Bacterial
  • Genetic Variation
  • Humans
  • In Situ Hybridization, Fluorescence
  • Molecular Sequence Data
  • Oligonucleotide Probes
  • Phylogeny
  • RNA, Bacterial
  • RNA, Ribosomal, 16S
  • 16s ribosomal RNA
  • butyrate-producing bacteria
  • human fecal samples
  • human feces
  • oligonucleotide probes
  • human colon
  • phylogenetic relationships
  • communities
  • accessibility

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