Fig. 1

Effect of B. subtilis PTS-394 on root colonization and tomato growth on MS agar. a, PTS-394 cell number (CFU) detected on the tomato rhizoplane after treatment with suspensions of different cell densities (histogram), and pattern of colonization by PTS-394 (arrows indicate the PTS-394 cells around the tomato root). b, Growth promotion effect of PTS-394: Fresh weight of tomato seedlings after soaking with suspensions of different cell densities (histogram). Different letters indicate significant difference at the 0.05 level by Duncan’s new multiple range test