FIGURE 6.

Swimming motility, growth-promoting and seed-germination assays. (A) The swimming of AS19 in solid LB medium with 0.3% agar under different concentrations of Fe³⁺. (B) Effect of different concentrations of Fe³⁺ on the growth of AS19. (C) Production of organic acids. (D) Production of IAA. (E) Decomposition of phosphate. (F) Antagonism experiment. (G) Production of ammonia. (H) The germination of pepper seeds treated with CFS and bacterial solution of AS19. The SA medium group was the control group. (I) The germination percentage of pepper seeds (a total of seven in each group). The experiment was repeated three times. Three dots represent the germination percentage of three experiments (ns, no significant difference, *p < 0.05, ^**p < 0.01, ^***p < 0.001).