GENETIC INTERRELATIONSHIPS OF SACCHAROLYTIC CLOSTRIDIUM-BOTULINUM TYPE-B, TYPE-E AND TYPE-F AND RELATED CLOSTRIDIA AS REVEALED BY SMALL-SUBUNIT RIBOSOMAL-RNA GENE-SEQUENCES

被引：0
作者：
HUTSON, RA [1 ]
THOMPSON, DE [1 ]
COLLINS, MD [1 ]
机构：
[1] INST FOOD RES, READING LAB, READING RG6 2EF, ENGLAND
来源：
FEMS MICROBIOLOGY LETTERS | 1993年 / 108卷 / 01期
关键词：
CLOSTRIDIUM-BOTULINUM; 16S RIBOSOMAL-RNA; PHYLOGENY;
D O I：
暂无
中图分类号：
Q93 [微生物学];
学科分类号：
071005 ; 100705 ;
摘要：
The phylogenetic interrelationships of saccharolytic C. botulinum types B, E and F together with eleven other saccharolytic clostridia were examined by 16S rRNA gene sequencing. Comparative analysis of the sequence data revealed that the saccharolytic C. botulinum types B, E and F were highly related and represent a single genetic group. Strains of C. barati and C. butyricum that produce botulinal neurotoxin revealed almost 100% 16S rRNA sequence identity with their respective non-toxigenic counterparts and were phylogenetically distinct from saccharolytic C. botulinum (types B, E and F). Proteolytic C. botulinum type F was shown to be phylogenetically remote from the saccharolytic C. botulinum group. The implications of the sequence data for the taxonomy of the C. botulinum complex are discussed.
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页码：103 / 110
页数：8
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