The phylogeny of acetic acid bacteria based on the partial sequences of 16S ribosomal RNA
1998
Yamada, Y. (Shizuoka Univ. (Japan). Faculty of Agriculture) | Hoshino, K. | Ishikawa, T.
The partial base sequences in positions 1220 through 1375, 156 bases, of 16S rRNA of thirty-six strains of acetic acid bacteria classified in the genera Acetobacter, Gluconobacter, Acidomonas, and Gluconoacetobacter were compared. The strains of the Q10-equipped Gluconobacter species examined were divided into two subgroups, which included the type strains of Gluconobacter oxydans, the type species of the genus Gluconobacter, and of a second species, Gluconobacter cerinus, respectively. The base differences numbered four between the two type strains. The type strains of the Q9-equipped species examined classified in the genus Acetobacter were not very distant phylogenetically from those of the genus Gluconobacter. The calculated number of base differences was seven between the type strains of G. oxydans and Acetobacter aceti. In contrast, the type strains of the Q10-equipped species examined classified in the genus Gluconoacetobacter were very distant phylogenetically from those of the Acetobacter and Gluconobacter species mentioned above. The number of base differences was calculated to be 15-8. The strains of the methanol-assimilating, Q10-equipped species of the genus Acidomonas examined were located in phylogenetically isolated positions. The type strains of Acidomonas methanolica (Acetobacter methanolicus), the type species of the genus Acidomonas had 16-8 base differences. The data obtained here indicated that the four genera, Acetobacter, Gluconobacter, Acidomonas, and Gluconoacetobacter are accepted phylogenetically in the classification of acetic acid bacteria including the facultative methylotrophs
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