Design of species-specific primers to identify 13 species of Clostridium harbored in human intestinal tracts.
The genus Clostridium is dominant in human intestinal tracts and plays an important role in human health. We designed species-specific primers to identify 13 species of Clostridium (C. perfringens, C. paraputrificum, C. bifermentans, C. difficile, C. clostridiiforme, C. nexile, C. sphenoides, C. indolis, C. ramosum, C. cocleatum, C. butyricum, C. sordellii, and C. innocuum) easily and rapidly. The PCR annealing temperature was set at a uniform 60 C for application to all strains at the same time. To confirm the specificities of these primers, 85 intestinal bacteria in total, including type strains, reference strains, and isolates were used. Ten primers (including those for C. perfringens to C. cocleatum) indicated high specificities. Although there were some cross-reactions with the other three primers, the target species were distinguishable from other bacteria by the different sizes of PCR products.
Laboratory of Veterinary Public Health, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Japan.
Eisaku
E
Kikuchi
Yukiko
Y
Miyamoto
Seiko
S
Narushima
Kikuji
K
Itoh
D003013:Clostridium / Q000737:chemistry / Q000145:classification* / Q000235:genetics; D003015:Clostridium Infections / Q000382:microbiology; D017931:DNA Primers / Q000737:chemistry / Q000235:genetics*; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics*; D005243:Feces / Q000382:microbiology; D006801:Humans; D016133:Polymerase Chain Reaction / Q000379:methods*; D012336:RNA, Ribosomal, 16S / Q000737:chemistry / Q000235:genetics; D013045:Species Specificity
D017931:DNA Primers; D004269:DNA, Bacterial; D012336:RNA, Ribosomal, 16S