Sequences of the 16S rRNA gene were determined for three strains of aerobic bacteriochlorophyll a-containing bacteria isolated from soil. The sequences of two strains (NS89and NS102) were identical for approximately 1500 nucleotides. Phylogenetic analysis revealed that the three strains belonged to the α-1 subclass of the , constituting one line of descent. The three strains are comparatively related to , which is an aerobic bacteriochlorophyll -containing bacterium. The 16S rRNA gene sequence similarity and the DNA-DNA relatedness allow the proposal of two new genera, gen. nov. and gen. nov. The type species are sp. nov. and sp. nov., and their type strains are NS130(=JCM 99331) and NS89(=JCM 9931), respectively.


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