Fig. 6

Result of applying co-trimoxazole to the algal–fungal co-culture and the algal mono-culture. A Microscopic images showing the inhibitory effect of applying various concentrations of co-trimoxazole to P. sedebokerense-infected H. pluvialis cultures. The images were taken on the 5th day post-inoculation. B The infection ratio in P. sedebokerense-infected H. pluvialis supplied with various concentrations of co-trimoxazole. C Changes in the H. pluvialis biomass dry weight (DW) and pigment content, including carotenoids (Car.) and chlorophyll (Chl.), upon co-trimoxazole application. DPI days post-inoculation. Bars = 20 μm