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© 2004 International and American Associations for Dental Research CHEMOTAXIS-GUIDED MOVEMENTS IN BACTERIASchool of Dentistry, Department of Microbiology, Immunology and Molecular Genetics, University of California-Los Angeles, Los Angeles, CA 90095; Correspondence: * corresponding author, wenyuan{at}ucla.edu Motile bacteria often use sophisticated chemotaxis signaling systems to direct their movements. In general, bacterial chemotactic signal transduction pathways have three basic elements: (1) signal reception by bacterial chemoreceptors located on the membrane; (2) signal transduction to relay the signals from membrane receptors to the motor; and (3) signal adaptation to desensitize the initial signal input. The chemotaxis proteins involved in these signal transduction pathways have been identified and extensively studied, especially in the enterobacteria Escherichia coli and Salmonella enterica serovar typhimurium. Chemotaxis-guided bacterial movements enable bacteria to adapt better to their natural habitats via moving toward favorable conditions and away from hostile surroundings. A variety of oral microbes exhibits motility and chemotaxis, behaviors that may play important roles in bacterial survival and pathogenesis in the oral cavity.
Key Words: Motility • chemotaxis • pathogenesis • oral bacteria
Critical Reviews in Oral Biology & Medicine, Vol. 15, No. 4,
207-220 (2004) This article has been cited by other articles:
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