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[Numerical taxonomy of gram-positive anaerobic bacilli]. 1982

M Rivas, and R O Cinto, and A H Frade, and A A Moro
Departamento de Biología, Instituto Nacional de Farmacología y Bromatología, Buenos Aires, Argentina.

Numerical Taxonomy's techniques were employed on twenty one anaerobic Gram positive bacilli strains taking account of eighty morphologic and biochemical features. Two methods of coding (weighted and non weighted) and four clustering methods (unweighted pair-group method using arithmetic averages; weighted pair-group method using arithmetic averages; single linkage and complete linkage) were used. Eight dendrograms were obtained and they showed that C. haemolyticum (strains 1, 2, 4, 7); C. subterminale (strains 8, 19); C. botulinum (strain 14) and C. sporogenes (strain 15) belong to a different group than the other strains. Another group would be formed with C. perfringens (strains 3, 5, 6, 12, 16, 21) and C. paraperfringens (strains 9, 10, 11). Of the remaining strains the two classified as Propionibacterium acnes (strains 17, 18) have a very high degree of agreement. C. histolyticum (strain 20) adjoins at a very low level, while C. butyricum (strain 13) shows a unfixed behaviour. The dendrograms display a disposition according with Classical Taxonomy.

UI MeSH Term Description Entries
D011424 Propionibacterium A genus of gram-positive, rod-shaped bacteria whose cells occur singly, in pairs or short chains, in V or Y configurations, or in clumps resembling letters of the Chinese alphabet. Its organisms are found in cheese and dairy products as well as on human skin and can occasionally cause soft tissue infections.
D003013 Clostridium A genus of motile or nonmotile gram-positive bacteria of the family Clostridiaceae. Many species have been identified with some being pathogenic. They occur in water, soil, and in the intestinal tract of humans and lower animals.
D001431 Bacteriological Techniques Techniques used in studying bacteria. Bacteriologic Technic,Bacteriologic Technics,Bacteriologic Techniques,Bacteriological Technique,Technic, Bacteriological,Technics, Bacteriological,Technique, Bacteriological,Techniques, Bacteriological,Bacteriologic Technique,Bacteriological Technic,Bacteriological Technics,Technic, Bacteriologic,Technics, Bacteriologic,Technique, Bacteriologic,Techniques, Bacteriologic

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