Additional file 4.

Graph showing evidence of killing of E. coli S17-1 and growth of B. bacteriovorus Tiberius in a predatory culture. Start- and end-point analyses of viable cell numbers of E. coli prey cells and Tiberius predatory cells by plaque (Tiberius) and colony (E. coli) counts on soft agar overlays on prey lawns, or conventional LB agar plates, respectively.

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Hobley et al. BMC Genomics 2012 13:670   doi:10.1186/1471-2164-13-670