Fig. 1

MsK8 cells are successfully infected by Phytophthora infestans. a Timeline of MsK8 cells infected with P. infestans strain 14-3-GFP. At time point 0 zoospores were added to MsK8 cells. Bars represent 100 μm. b, c Microscopic images (left panels: epifluorescent, right panels: bright field). b Primary infection and penetration of a MsK8 cell at 6 hpi. c Fully developed haustorium in an infected cell and relocation of the nucleus to the penetration point at 16 hpi. ap appressorium; c cyst; h haustorium; hpi hours post inoculation; n nucleus; p penetration peg. Arrows and arrowheads point to secondary infections and sporangia, respectively. Bars represent 50 μm