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Prophages that impart strong phage resistance frequently alter T4P function. (a) The diameter of twitching motility zones for indicated PA14 lysogens is shown as a percentage, relative to wild-type PA14. Average value of three replicate experiments is shown and the error bars denote the standard deviations. (b) Representative images of twitching motility zones for PA14 lysogens visualized with crystal violet.
