@MISC{Armitage_theme?, author = {Judith P. Armitage and Rudiger Schmitt}, title = {theme?}, year = {} }
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Abstract
More than half the known bacterial species swim, with swimming being used to direct their overall movement towards an optimum environment for growth, which could include sites of invasion for pathogens and symbionts. A great deal is now known about swimming and its environmental control in enteric species (for recent reviews see Amsler & Matsumura, 1995; Blair, 1995), but only recently has there been a significant increase in the study of non-enteric species. From these studies it has become apparent that the chemosensory system must have a very ancient origin as it is present in some form not only in all the genera examined, but also in both bacteria and archaea (Alex & Simon, 1994). The central theme, an ion-driven motor rotating a semi-rigid helix, controlled by a phosphorelay system to bias the