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PFGE of undigested DNA and Southern blot hybridization. The PFGE patterns of undigested DNA (A) and Southern blot hybridization detection of the boNT/B genes (B) and the 16S rRNA genes (C) of strains Okra (lane 1), 407 (lane 2), 89E00061-2 (lane 3), 111 (lane 4), and Osaka05 (lane 5) are shown. Lanes M, bacteriophage λ ladder.
