- International Journal of Systematic and Evolutionary Microbiology
- Volume 51, Issue 3
f Phylogenetic positions of Clostridium novyi and Clostridium haemolyticum based on 16S rDNA sequences.
- Authors: Y Sasaki, N Takikawa, A Kojima, M Norimatsu, S Suzuki, Y Tamura
- Int J Syst Evol Microbiol, May 2001 51: 901-904, doi: 10.1099/00207713-51-3-901
- Subject: Articles
- Published Online:
The partial sequences (1465 bp) of the 16S rDNA of Clostridium novyi types A, B and C and Clostridium haemolyticum were determined. C. novyi types A, B and C and C. haemolyticum clustered with Clostridium botulinum types C and D. Moreover, the 16S rDNA sequences of C. novyi type B strains and C. haemolyticum strains were completely identical; they differed by 1 bp (level of similarity > 99.9%) from that of C. novyi type C, they were 98.7% homologous to that of C. novyi type A (relative positions 28-1520 of the Escherichia coli 16S rDNA sequence) and they exhibited a higher similarity to the 16S rDNA sequence of C. botulinum types D and C than to that of C. novyi type A. These results suggest that C. novyi types B and C and C. haemolyticum may be one independent species generated from the same phylogenetic origin.
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