Evidence for two flagellar stators and their role in the motility of Pseudomonas aeruginosa

Journal of Bacteriology
Christine M ToutainGeorge A O'Toole


Pseudomonas aeruginosa is a ubiquitous bacterium capable of twitching, swimming, and swarming motility. In this study, we present evidence that P. aeruginosa has two flagellar stators, conserved in all pseudomonads as well as some other gram-negative bacteria. Either stator is sufficient for swimming, but both are necessary for swarming motility under most of the conditions tested, suggesting that these two stators may have different roles in these two types of motility.


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