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. 2023 Apr 20;12(8):1704. doi: 10.3390/plants12081704

Figure 4.

Figure 4

Salt stress differently affects the biochemical responses of wt, strp, and STRP OE plants. (A) Chlorophyll content determined on detached leaves of one-month-old A. thaliana wt, strp, and STRP OE plants treated with a solution 150 mM NaCl every three days for two weeks. Error bars are s.e.m. of three independent experiments. * p < 0.05, ** p < 0.01, **** p < 0.0001, by Student’s t-test. (B): 3,3′–diaminobenzidine (DAB) staining of detached leaves of two-week-old A. thaliana wt, strp, and STRP OE plants treated with 150 mM NaCl for 18 h. Images are representative of three independent experiments. Ascorbate peroxidase (APX) activity (C), malondialdehyde (MDA) (D), relative electrolyte conductivity (REC) (E), and proline content (F) were assessed on two-week-old A. thaliana wt, strp, and STRP OE plants grown on MS medium and then treated with 150 mM NaCl for 18 h. Error bars are s.e.m. of three independent experiments. * p < 0.05, ** p < 0.01, *** p < 0.001, **** p < 0.0001, by Student’s t-test.