Genetic interrelationships of proteolyticClostridium botulinum types A,B, and F and other members of theClostridium botulinum complex as revealed by small-subunit rRNA gene sequences |
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| Authors: | R. A. Hutson D. E. Thompson P. A. Lawson R. P. Schocken-Itturino E. C. Böttger M. D. Collins |
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| Affiliation: | (1) Department of Microbiology, AFRC Institute of Food Research, Reading Laboratory, RG6 2EF Reading, UK;(2) Universidade Estadual Paulista, 14870 Juboticabal, Brazil;(3) Institute für Medizinische Mikrobiologie, Medizinische Hochschule, 3000 Hannover 61, Germany |
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| Abstract: | The phylogenetic interrelationships of members of theClostridium botulinum complex of species was investigated by direct sequencing of their 16S rRNA genes. Comparative analysis of the 16S rRNA sequences demonstrated the presence of four phylogenetically distinct lineages corresponding to: i) proteolyticC. botulinum types A, B, and F, andC. sporogenes, ii) saccharolytic types B, E and F, iii) types C and D andC. novyi type A, and iv) type G andC. subterminale. The phylogenetic groupings obtained from the 16S rRNA were in complete agreement with the four divisions recognised within the  species complex on the basis of phenotypic criteria. |
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| Keywords: | 16S rRNA Clostridium botulinum phylogeny taxonomy |
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