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. 2016 Mar 30;7:403. doi: 10.3389/fpls.2016.00403

FIGURE 4.

FIGURE 4

Mature leaf amino acid, soluble sugar and polyamine levels after LT, RT, or ST with B. phytofirmans strain PsJN. Relative concentration was expressed relatively to an internal standard (arbitrary unit). Data (mean ± SE) are averages of three independent experimental replicates, each with three plants per treatment (n = 3). *, #, or aaa, indicate significant differences in Bp-LT, -RT, or -ST conditions compared with their respective control, respectively (Student’s t-test; P ≤ 0.05).