Figure 2

Influence of the T3SS and the GacA-GacS global regulatory system on endophytic growth. (A) Endophytic growth after leaf infiltration of T3SS-negative hrcC mutants (hrcC_ KO) in Psy SM-R and Psy B64-R as well as the T3SS-regulatory deletion mutant ΔhrpL in Psy SM-R was compared with the respective wild-type (wt) strains. (B) Endophytic growth comparison after leaf infiltration of gacS knockout mutants (gacS_ KO) and wild-type strains (wt) in Psy SM-R and Psy B64-R strains. The data for the wt strains are the same as in (A). DPI, days post infection; CFU, colony forming units. Error bars indicate the standard error of the mean (n = 4 for gacS_KO strains, n = 3 for other strains).