Fig. 4From: Isolation and characterization of three bacteriophages infecting Erwinia amylovora and their potential as biological control agent16S rRNA-PCR amplification of Erwinia amylovora isolates. Lane M, 1Â bp DNA ladder (Gibco BRL); lanes 1, 2, 3, E. amylovora isolates, Lane 4, positive controlBack to article page