, Volume 7, Issue 3, pp 127-132

A phylogenetic analysis of anaerobic eubacteria capable of synthesizing acetate from carbon dioxide

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Abstract

Acetobacterium woodii, Acetogenium kivui, Clostridium aceticum, C. acidiurici, C. cylindrosporum, C. formicoaceticum, C. thermoaceticum, Eubacterium limosum, andPeptococcus glycinophilus were characterized by oligonucleotide cataloging of their 16S ribosomal RNA to determine whether the ability to synthesize acetate from CO2 is a phylogenetic trait. The ability to synthesize acetate from CO2 apparently is not a valid phylogenetic marker. TheEubacterium andPeptococcus species examined here are less related to other species in their genera than they are to different species ofClostridium. TheEubacterium species examined here show little relatedness to the genusPropionibacterium. The acetogenic eubacteria belong to the phylogenetic group defined basically by the Gram-positive sporeforming anaerobes.