... temperature,demonstrating the presence of temperature-specific myosin isoforms in carp. Subsequently, the temperature-dependence of the sliding velocity of fluorescent F-actin in myosins isolated from 10°C- and 30°C-acclimated carp was measured. At 8°C, the filament velocity was three times higher for myosin...

... capable of maintaining stable beating was diminished; an increase in ATP concentration above 2 mmol l −1 had no effect on the range of stable beating. In flagella reactivated at ATP concentrations above 100 µ mol l −1 , the apparent time-averaged sliding velocity of axonemal microtubules decreased when...

... imposed vibration, the wavelength was reduced at higher frequencies and increased at lower frequencies. When the beat frequency was equal to or lower than the natural beat frequency, the apparent time-averaged sliding velocity of axonemal microtubules, obtained as twice the product of frequency and bend...