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. 2024 Nov 1;15:9448. doi: 10.1038/s41467-024-53894-y

Fig. 4. NbHSP90s negatively regulates SA signaling and plant resistance against TbCSV + TbCSB complex in N. benthamiana plants.

Fig. 4

a, b Relative mRNA level of PR1a (a) and PR2 (b) in N. benthamiana plants that were first treated with geldanamycin (GDA) or DMSO and then sprayed with ethanol (control) or SA. c Quantity of TbCSV in N. benthamiana plants that were first sprayed with ethanol (control) or SA and then inoculated with TbCSV+TbCSB+GDA or TbCSV+TbCSB+DMSO. d, e Relative mRNA level of PR1a (d) and PR2 (e) in N. benthamiana plants that were first inoculated with TRV-GFP or TRV-NbHSP90-2 and then sprayed with ethanol (control) or SA. f Quantity of TbCSV in N. benthamiana plants that were first sprayed with ethanol (control) or SA and then inoculated with TbCSV+TbCSB+TRV-GFP or TbCSV+TbCSB+TRV-NbHSP90-2. g, h Relative mRNA level of PR1a (g) and PR2 (h) in N. benthamiana plants that were first inoculated with TRV-GFP or TRV-NbHSP90-10 and then sprayed with ethanol (control) or SA. i Quantity of TbCSV in N. benthamiana plants that were first sprayed with ethanol (control) or SA and then inoculated with TbCSV+TbCSB+TRV-GFP or TbCSV+TbCSB+TRV-NbHSP90-10. j, k Relative mRNA level of PR1a (j) and PR2 (k) in N. benthamiana plants that were first inoculated with TRV-GFP or TRV-NbHSP90-12 and then sprayed with ethanol (control) or SA. l Quantity of TbCSV in N. benthamiana plants that were first inoculated with TbCSV+TbCSB+TRV-GFP or TbCSV+TbCSB+TRV-NbHSP90-12 and then sprayed with ethanol (control) or SA. N = 6–7 samples (2-3 plants per sample) for (a, d, e), 5–7 samples (2–3 plants per sample) for (b, j), 15–16 plants for (c), 14–15 plants for (f), 7-8 samples (2-3 plants per sample) for (g, k), 6–8 samples (2–3 plants per sample) for (h), 12-15 plants for (i), 11–13 plants for l. Data are mean ± SEM. n. s. stands for no significant difference, *P < 0.05, **P < 0.01, and ***P < 0.001 (one-way ANOVA for (ai); two-sided Student’s t test for jl). Source data and the exact P values are provided in Source Data file.