Fig. (3) Phylogenetic trees constructed using the 16S rRNA sequences obtained from Stenotrophomonas (A), Enterobacter (B), Paenibacillus (C), and Acinetobacter (D) isolates analyzed in this work and the most similar sequences retrieved from databases. Bootstrap values > 50 are shown. The pairwise deletion option was used. Isolates harboring one or more plasmids are marked by a black or white dot or a grey triangle. Isolates harboring a plasmid with the same electrophoretic mobility are marked with the same symbol.