FIG 3.
Filament morphology and swim phenotype of ΔflaBCD and motile flagellin mutants. (A and B) Curved filament morphology of the ΔflaBCD mutant. TEM images are captured at ×6,000 (A) and ×60,000 (B). (C) Day 7 swim ring diameter data for ΔflaBCD mutant alone and with plasmid-borne overexpression of flaA from Plac and native promoter of flaA (Plac-PflaA-flaA). Data are normalized to the wild type. White bars are wild type or the mutant, and the black bars are the strains with plasmid constructs. Values are the averages for three swim plates per strain.