Confocal scanning laser microscopic images showing Foc1 progression and colonization in roots of WR315plants.

(A–C) correspond to root sections of uninduced plants. (D–F) represent root sections of WR315 after 7dpi; (G–I) showing root sections after 12dpi. A, D, G represent fluorescent images; B, E, H represent DIC images and C, F, I represent merged images. Bars represent 20 µm.