. The biology of cilia and flagella. Cilia and ciliary motion; Flagella (Microbiology). VISCOSITY 85 than normal, the wavelength is increased by over 100 per cent in some cases. Under these conditions of high viscosity the meta- chronal waves and the frequency are less stable than usual, and the amplitude is progressively reduced with increase of viscosity until the beats become a mere flicker. Metachronal waves cease and eventually all beating stops at about 10 cP. ?120-. 3*0 >0 7*0 VISCOSITY IN CENTIPOISES Fig. 20. The effect of viscosity on metachronal wave velocity and frequency of beat
. The biology of cilia and flagella. Cilia and ciliary motion; Flagella (Microbiology). VISCOSITY 85 than normal, the wavelength is increased by over 100 per cent in some cases. Under these conditions of high viscosity the meta- chronal waves and the frequency are less stable than usual, and the amplitude is progressively reduced with increase of viscosity until the beats become a mere flicker. Metachronal waves cease and eventually all beating stops at about 10 cP. ?120-. 3*0 >0 7*0 VISCOSITY IN CENTIPOISES Fig. 20. The effect of viscosity on metachronal wave velocity and frequency of beat of Stentor membranelles. Each value plotted is the mean of many observations, the vertical lines showing 95 per cent confidence limits (from Sleigh, 1961). The explanation given for these results is closely bound up with theories of the mechanism of metachronal co-ordination of these cilia which is considered in detail later (p. 184). At low viscosities the ciliary beat is slowed by the mechanical resistance of the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Sleigh, Michael A. Oxford, New York, Pergamon Press
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