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. 2017 Sep 13;8:1595. doi: 10.3389/fpls.2017.01595

FIGURE 7.

FIGURE 7

Effect of FA on infection process of R. solanacearum. (A) By soil-soak inoculation on humus soil cultivating tomato plants, (B) by root sipping inoculation on hydroponic cultivating tomato plants. Bacterial suspension was poured onto the humus soil or hydroponic medium at a final concentration of or 107 cfu g-1 of soil or 107 cfu ml-1 of medium. Opened circles, DMSO control; opened triangles, FA treatment. Plants were inspected daily for wilt symptoms, and scored on a disease index scale from 0 to 4 (0, no wilting; 1, 1–25% wilting; 2, 26–50% wilting; 3, 51–75% wilting; and 4, 76–100% wilted or dead). Each trail included at least 12 plants and mean values of at least three independent trails were averaged and presented with SD (error bars). Statistical significance between FA treatment and the control was assessed using a post hoc Dunnett test following ANOVA. Significance level, p < 0.05 and ∗∗p < 0.01.