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Phylogenetic neighbor-joining tree of Arthrobacter sp. strain B1 (a) and Alcaligenes sp. strain B5 (b) based on 16S rRNA gene sequences. The phylogenetic tree shows the relationships between individual isolates and species within the respective genus. Bootstrap values (expressed as percentages of 1000 replications) greater than 50 % are given at nodes. Bar 0.005 % sequence variation. GenBank accession numbers are given in parentheses
