Fig. 1

Characterization of the infection features of the parasitic fungus P. sedebokerense on its microalgal host H. pluvialis at various infection stages. Typical cell features at various infection stages are shown under optical microscope (top and middle) and transmission electron microscope (bottom). White arrows indicate the cell interaction regions of interest; arrowheads indicate lipid droplets inside the fungus cell. DPI days post-inoculation. F P. sedebokerense. Hp H. pluvialis. Bars = 10 μm