Supplemental Figure S1. Effects of spore suspension concentration B. pumilus TUAT1 strain on the growth (fresh weight) of seedlings of O. sativa cv. Hitomebore at 3 weeks after sowing. Inocula consisted of 4 mL of water or bacterial suspensions and were added to the soil of each seedling once weekly from just after sowing. Values are provided as mean ± SE (n = 8). ** indicates significant differences at the 1% level, compared to the control-inoculated plants, as determined by t-test.