Figure 2
From: Inhibitory effect and mechanism of Tagetes erecta L. fungicide on Fusarium oxysporum f. sp. niveum

Effect of TEF on FON in vitro. (A) Growth inhibition rates over 24–168 h. (B) Anti-fungal zone of inhibition at 168 h. (C–H) Scanning electron microscopy image of FON mycelium in the control group, 1500× (C) or 6000× (D) magnification. FON mycelium in the 0.6 mg/mL TEF treatment group, 1500× (E) or 6000× (F) magnification. FON mycelium in the 0.8 mg/mL TEF treatment group, 2000× (G) or 6000× (H) magnification. (I) Changes in membrane conductance of FON. (J) Changes in respiratory intensity of FON. (K) Changes in cellulase activity of FON. (L) Changes in β-D-glucosidase activity of FON. CG: control group with no TEF. Means followed by the same letter are not significantly different at the P < 0.05 level.