FIG. 1.

Bootstrapped (1,000 iterations) neighbor-joining tree of denitrifying isolate SSU rRNA gene sequences. Isolate sequences recovered in this study are in bold, with additional genetic and phenotypic properties provided in Table 2. Nodes supported by bootstrap values greater than 70% are indicated by numeric values, and nodes supported by Bayesian analysis, with posterior probability values greater than 95%, are indicated with gray circles. The scale bar represents 0.02 substitutions per nucleotide position.