Figure 4.
(a) Rotation rates decreased with viscosity in all mutants. (b) Compared to wt, cell body rotation is slower in oda2 at all viscosities and in ida1 at low and medium viscosity. (c) ida1 flagella exhibit a dramatic increase in beats per revolution with viscosity. The number of beats per revolution in wt and oda2 flagella also tend to increase with viscosity but much less than in ida1 (in wt the increase is statistically significant, ANOVA, p<0.01). (d) The number of beats per revolution in ida1 was significantly higher than in wt at all viscosities.