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. 2022 Jan 10;12:766095. doi: 10.3389/fpls.2021.766095

FIGURE 7.

FIGURE 7

Detached leaf assay showing priming with phytohormones contributed to reduced disease severity and less disease index with SA pre-treatment being more effective than MeJA. (A) Comparison of development of necrotic lesions at 2 and 3 dpi on control and phytohormone treated tomato leaves after inoculation with R. solani. At 2 dpi the control set leaves develop significant necrotic lesions whereas MeJA and SA-primed leaves remained almost as fresh as the unprimed, uninoculated (mock) leaves. Control leaves get almost entirely necrosed by 3 dpi while MeJA and SA-treated leaves show significantly less necrosis. (B) Graph showing comparison of the percentage of necrotic lesion on leaves from the above experiment. (C) Disease index at day 3 showing that SA pretreatment results in least disease index. Bars represent mean ± S.E.M of three independent experiments with three replicates. Different letters indicate significant differences among treatments at p < 0.05, according to Duncan’s multiple range test.