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. 2016 Aug 17;7:1221. doi: 10.3389/fpls.2016.01221

Figure 2.

Figure 2

Effects of exogenous spermidine (0, 0.15, 0.30, 0.45, 0.60 mM) on PA contents in the roots of cv. Z081 (A–C) and cv. Z057 (D–F) grown under 200 mM NaCl stress. (A,D) Put (total, free, soluble conjugated, insoluble conjugated) content; (B,E) Spd (total, free, soluble conjugated, insoluble conjugated) content; (C,F) Spm (total, free, soluble conjugated, insoluble conjugated) content. Data represent the means ± SE of three replicates. Values in a single column sharing the same letters are not significantly different (p < 0.05) (Duncan’s multiple range test).