Figure 6: Base (FliM) and hook (FlgE) foci correlate while showing that not every base maybe a functional flagellum.
From: Growth rate control of flagellar assembly in Escherichia coli strain RP437

(A) Distribution of base and hook foci in batch culture growth conditions. (B) Distribution of the base:hook ratio taken from the individual cells used in (A). The data shown is n = 328 cells from 3 independent repeats of experiments where cells were grown in media containing 3 g/L yeast extract generating an equivalent growth rate during exponential growth as used for fast growth conditions in the chemostat experiments10. Images and further details of the generation of flgEA240C can be found in the supporting material.