Genomic Characterization of Ralstonia solanacearum Phage phi RSB1, a T7-Like Wide-Host-Range Phage

phi RSB1 is a wide-host-range, T7-like bacteriophage that infects and efficiently lyses the phytopathogenic bacterium Ralstonia solanacearum. The phi RSB1 genome comprises 43,079 bp of double-stranded DNA (61.7% G + C) with 325-bp terminal repeats and contains 47 open reading frames. Strong activity of tandem early promoters and wide specificity of phage promoters of phi RSB1 were demonstrated.