Figure 8
Treatment of dmr1- 2 with LHS further reduces Fusarium silique susceptibility compared to DHS treated controls. Arabidopsis plants of genotype dmr1-2 were treated at early flowering with 10 mM L-homoserine (LHS) or D-homoserine (DHS) as a control, concurrent with F. culmorum spray inoculation. Amino acid/water treatments were repeated for 7 days. Bud and silique disease levels were assessed at 7 dpi. Asterisks indicate statistically significant differences between treatments for each tissue type (regression analysis followed by prediction of LSDs, p = <0.05, n = 8). Images show inoculated inflorescences 7 dpi. LHS treatment reduced bud and silique disease levels in dmr1-2. White arrow – opening uninfected buds. Green arrow – green uninfected siliques. Analysis based on pooled data from two independent experiments.