FIG. 1.

Phylogenetic tree demonstrating the relationship of isolate DS15158 within the bacterial subdivision α-Proteobacteria by comparative analysis of 16S rRNA by using the neighbor-joining method of ARB (18). The bar indicates the number of substitutions per nucleotide position. Bootstrapping was used (100 replicates) to assess support for particular nodes in the tree, and values (in percent) are shown above the nodes. The outgroup is represented by P. aeruginosa and Neisseria gonorrhoeae (bacterial subdivision β-Proteobacteria), Aeromonas caviae (bacterial subdivision γ-Proteobacteria), Desulfovibrio desulfuricans (bacterial subdivision δ-Proteobacteria), and Campylobacter jejuni (bacterial subdivision ɛ-Proteobacteria).