Crosstalk between the Circadian Clock and Innate Immunity in Arabidopsis
Figure 6
CCA1 and LHY contribute synergistically to resistance to Hyaloperonospora arabidopsidis (Hpa).
(A) Infection with Hpa Emco5. (B) Infection with Hpa Emoy2. Seven-day-old seedlings were spray-infected at ZT7 in LD with the virulent strain Hpa Emco5 or the avirulent strain Hpa Emoy2 (5×104 spores/ml in water). Sporangiophore production in cotyledons of each genotype was counted at 7 dpi. Data represent the average number of sporangiophores from 20 seedlings for CCA1ox and 50 seedlings for other genotypes ± SEM. Letters indicate significant difference among the samples (P<0.01; Mann-Whitney test). These experiments were repeated three times with similar results.