Figure 1. Plants exposed to a dense fungal lawn. (A) Nine-day-old Arabidiopsis wild-type seedlings were transferred from MS medium to a plate with KM without P. indica (left) or with a dense fungal lawn (right) for 7 d. Growth occurred in continuous light at 80 µmol min^-2 sec^-1. (B) False color images of typical seedlings representing F_s/F_m values as described in Methods and Material and ref. 29.