Figure 7.

Treatment of pregametes of strain RNAi20 in the light with combinations of pharmacological compounds that either activate or inhibit the loss of chemotaxis in pregametes towards nitrite ($■$) and nitrate ($■$). Compounds were added to pregametes 10 min prior to start of illumination at the fluence rates of 60 µmol m⁻² s⁻¹ for 2 h. The genistein concentration was 200 μM. The concentrations used for other compounds were the same as those given in the legend of Figure 5. Non-treated cells (●) were used as control.