Agarose electrophoresis of PCR products amplified by the primers PH102 F8/R2 from total DNA extract templates of phage pellets from supernatant solutions of VH, VHL5, VHL8, and VHL10. Lane 1, λ DNA EcoRI/HindIII markers; lane 2, distilled water (negative control); lane 3, supernatant from V. harveyi; lanes 4 to 6, supernatants from VHL5, -8, and -10, respectively; lane 7, VHS1 (positive control).