Motility of Campylobacter jejuni in a Viscous Environment: Comparison with Conventional Rod-shaped Bacteria

• Published in: Journal of general microbiology Vol. 134; no. 1; pp. 53 - 59
• Main Authors: FERRERO, RICHARD L, LEE, ADRIAN
• Format: Journal Article
• Language: English
• Published: London Soc General Microbiol 01.01.1988; New York, NY Cambridge University Press
• Subjects: Bacteriology; Biological and medical sciences; Campylobacter fetus - pathogenicity; Campylobacter jejuni; Cell Movement; Culture Media; Escherichia coli - pathogenicity; Flagella - physiology; Fundamental and applied biological sciences. Psychology; Microbiology; Pathogenicity, virulence, toxins, bacteriocins, pyrogens, host-bacteria relations, miscellaneous strains; Salmonella enteritidis - pathogenicity; Vibrio cholerae - pathogenicity; Viscosity; Culture medium; Viscosity; Spirillales; Spirillaceae; Mobility; Bacteria; Mechanism of action; Campylobacter jejuni
• ISSN: 0022-1287; 1350-0872; 1465-2080
• DOI: 10.1099/00221287-134-1-53

School of Microbiology, University of New South Wales, Kensington, NSW 2033, Australia ABSTRACT SUMMARY: The motility of four strains of Campylobacter jejuni in solutions of varying viscosity was measured and compared to that of a number of conventional rod-shaped bacteria (CRSB). All the bacteria tested showed an initial increase in velocity in the low viscosity solutions - between 1 and 3 centipoise (1 P = 0.1 Pa s). However, only the campylobacters were actively motile in highly viscous solutions with velocities ranging from 60 to 100 µ s -1 . All strains of C. jejuni tested showed three separate peaks of motility as the viscosity of the solution was increased. A higher proportion of C. jejuni cells exhibited longer path lengths when the viscosity of the surrounding medium was increased from 1.4 to 57 cP. The findings of the study suggest that C. jejuni has a motility suited to movement in a viscous environment, and that this ability might provide the organism with an ecological advantage when in intestinal mucus. It is proposed that the mechanism of motility changes depending on the viscosity of the supporting environment.