Fig. 2.—

Infection phenotypes of Colletotrichum incanum on various host plants. The ability of C. incanum to infect (A, B) Arabidopsis, (C) lily, and (D) maize. (A) Trypan blue staining of Arabidopsis leaves infected by C. incanum at 6 days post infection (dpi). The growth of intracellular hyphae during infection of C. incanum transformed with GFP during leaf infection of (B) the susceptible Arabidopsis accession Bay-0 at 2 dpi and (C) lily at 5 dpi. (D) Infection of maize leaves by (I) C. incanum and (II) Colletotrichum graminicola at 8 dpi. Necrotic lesions were observed on drop-inoculated C. graminicola-infected but not C. incanum-infected leaves. White arrowheads: conidia showing site of initial infection; unfilled arrowheads: host cell wall.