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. 2023 Oct 22;12(20):3647. doi: 10.3390/plants12203647

Figure 6.

Figure 6

Effect of γ-aminobutyric acid (GABA) supplementation on the relative gene expression of pathogenesis-related proteins (PRs) in the leaves of healthy and ‘Ca. L. asiaticus’-infected Valencia sweet orange (C. sinensis). (A–F) Relative gene expression of six PRs included CsPR1, CsPR2, CsPR3, CsPR4, CsPR5, and CsPR15, respectively. (G) Relative gene expression of pathogenesis-related protein STH-2-like (CsSTH-2) and (H) Relative gene expression of WRKY70 transcription factor (CsWRKY70), an activator of SA-dependent defense. The minimum and the maximum values are presented by whiskers, while horizontal thick lines specify the median. Boxes show the interquartile ranges (25th to 75th percentile of the data), white dots represent the raw data (n = 6), and gray shading represents the corresponding violin plot. Presented p-values are based on a two-tailed t-test to statistically compare each pair of treatments. Statistical significance was established as p < 0.05. The full list of expressed genes, names, accession numbers, and primers is available in Supplemental Table S5.