Figure 4

Transmission electron micrographs (TEM) of P. infestans hyphae in transversal

(A,C) and longitudinal (B,D–G). (A,B) Sections of P. infestans hyphae were grown on PDA (blank control). (C–G) Sections of P. infestans hyphae were grown on PDA medium with 50 μg mL⁻¹ compound I18.