Figure 4.

Virulence of d‐galacturonic acid catabolism‐deficient mutants on Arabidopsis thaliana. (A) Disease symptoms of Botrytis cinerea on A. thaliana leaves at 3 days post‐inoculation (dpi). Two representative leaves are shown for each plant/strain combination. (B) Botrytis cinerea biomass accumulation by immunological detection at 3 dpi. Eight detached leaves were sampled as a pool for quantification. The fungal biomass of the mutants was normalized to that of the wild‐type strain. Data represent means ± standard deviation from two independent biological repeats. *P < 0.05, **P < 0.01 by Student's t‐test.