Evaluation of Commercial Disinfectants against Staphylococcus lentus and Micrococcus spp. of Poultry Origin

Figure 1

Phylogenetic tree predicted by the neighbor-joining method using 16S rRNA gene sequences. The evolutionary distances were computed using the Kimura 2-parameter model method and are in the units of the number of base substitutions per site. The bootstrap considered 1000 replicates. The scale bar represents the expected number of substitutions averaged over all the analyzed sites. The optimal tree with the sum of branch length = 0.98517644 is shown here. The results obtained with sequencing exhibited two different clusters, and we referred to them as clusters A and B. However, due to the high-sequence similarity, the nodes are not very stable and sequencing errors in some of the older sequences may well affect the topology of the tree. Cluster A contains Staphylococcus lentus. Cluster B contains both Micrococcus luteus and Micrococcus aloeverae strains. Treponema denticola was used as outgroup.