Extended Data Fig. 8.

a, Increased endophytic bacterial community in the mfec and mbbc plants depend on high humidity. Col-0, mfec and mbbc plants were either sprayed with H₂O and kept under high humidity (~95%) or kept under low humidity (~50%). On day 5, total populations of the endophytic bacterial community were quantified. Statistical analysis was performed by one-way ANOVA with Tukey’s test (p value set at 0.05). Bacterial populations indicated by different letters (i.e., a and b) are significantly different. n=4 technical replicates; error bars, mean±s.d. Experiments were repeated three times. b, Mild chlorosis and necrosis in leaves is associated with increased endophytic bacterial community level in the mfec and mbbc quadruple mutant plants. Plants were sprayed with H₂O and kept under high (~95%) humidity. Pictures were taken 10 days after spray. Individual leaves are enlarged and shown in the lower panel, showing mild chlorosis and necrosis in some of the mfec and mbbc leaves.