Modulation of flagellar rotation in surface-attached bacteria: A pathway for rapid surface-sensing after flagellar attachment
Fig 9
ΔmotAB and ΔmotCD bacteria show distinct distributions of velocity (A) and reversal frequency (B) during liquid swimming.
Cells of each genotype were imaged under dark-field microscopy at 30 fps. Image analysis was carried out as described in Methods using a custom MATLAB code. In (B), boxplots span 1st and 3rd quartiles with a line at the median. The number of cells tracked is shown above each sample in panel B; data from these tracked cells was also used to generate the histogram in panel A, in which the y-axis shows the probability of observing a given velocity.