Figure 7.

Effect of Bacillus spp. strains on the control of bacterial wilt in Arabidopsis thaliana. (A,B) exhibit the symptom appearance and disease severity of bacterial wilt post-inoculation, respectively. The treatments of Bacillus spp. strains were carried out by soaking the seedlings in the bacterial suspensions two days before inoculation. Blank indicates the treatment with sterilized water only. Then, the plants were transplanted into diseased soil containing Ralstonia solanacearum Rd15 as an inoculation to evaluate the occurrence of wilting symptoms at 2- and 4-week post-inoculation (wpi). Different letters above the columns indicate significant differences based on Tukey’s HSD test (p < 0.05).