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. 2019 Sep 3;7(9):314. doi: 10.3390/microorganisms7090314

Figure 9.

Figure 9

(a) Effect of preventive, concomitant, and curative biocontrol treatment on olive trees after 4 months post-inoculation with F. solani strain Fso1—representative non-treated (control) olive trees (1), infected with F. solani Fso1 (2), inoculated with B. velezensis OEE1 (3), infected with F. solani Fso1 and then treated with B. velezensis OEE1 (OEE1 curative treatment) (4), inoculated with B. velezensis OEE1 and then infected with F. solani Fso1 (OEE1 preventive treatment) (5), infected with F. solani Fso1 and then treated with the fungicide (fungicide curative treatment) (6) and inoculated with B. velezensis OEE1 and then treated with fungicide (fungicide preventive treatment) (7), respectively. (b) Effects of the different treatments (negative control, fungal control, bacterial control, bacterial curative, bacterial preventive, fungal curative and fungal preventive) on collar diameter, apical elongation, disease severity, number of new leaves and new shoots. Data presented as mean ± standard error. Bars labelled with different letters were significantly different among the treatments at p < 0.05, using the Tukey’s HSD test. (c) Re-isolation of the mutant strain OEE1′ from (1,2) leaves and (3,4) stems after root inoculation with B. velezensis OEE1′. The mutant strain was used in parts 1, 2, 3 and 4.