Fig. 1.

Effect of ZmFBX92 expression on rosette and leaf growth in Arabidopsis and cellular basis of the leaf size differences. (A) PRA of a ZmFBX92^OE transgenic line and the WT over time from 6 until 21 DAS. Plants were grown in vitro on standard medium or medium containing 25 mM mannitol. Inset: PRA in log scale. Values represent the mean � SE (n_{transgenic line} = 25–27, n_WT = 39). (B) Individual leaf size of 22-day-old WT and ZmFBX92^OE plants grown in vitro. Values represent the mean � SE (n = 7). Significant differences (Student’s t-test): *P < 0.05; **P < 0.01 relative to the WT. (C) Representative pictures from the measurements shown in (B). (D) Average area, pavement cell number and pavement cell size of leaf 3 at 22 DAS of ZmFBX92^OE plants relative to the WT. Values represent the mean � SE (n = 3).