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. 2018 Nov 20;9:1712. doi: 10.3389/fpls.2018.01712

FIGURE 7.

FIGURE 7

The PPSB is essential for light and sugar-dependent growth promotion. (A) The leaf area was determined of empty vector (EV), PSAT1-silenced (ts-psat1.1, ts-psat1.2) and PGDH1-silenced (ts-pgdh1.1, ts-pgdh1.2) plants grown at low (60 μmol (photons) m-2 s-1) and high (180 μmol (photons) m-2 s-1) light conditions. The leaf area was analyzed at two time points, 7 days after germination (TP1) and 14 days after germination (TP2). ∗∗∗P ≤ 0.001, significant differences between PSAT1- or PGDH1-silenced lines and the EV control. (B) The effect of externally applied sucrose on plant growth was studied in EV, PSAT1-silenced and PGDH1-silenced plants. Plants were grown on ½ MS medium with or without supplementation of 1.5% sucrose and growth promotion was determined by measuring the leaf area. ∗∗∗P ≤ 0.001, ∗∗P ≤ 0.01, and ∗P ≤ 0.05 indicate significant differences in leaf area between plants grown in the presence of 1.5% sucrose and plants grown on medium without sucrose.