Figure 2.

A, Photography of young leaves of oilseed rape in control or plant treated with MeJA pulverization during 7 d. B to D, Changes in chlorophyll content (B), soluble protein amounts in laminae (C), and SDS-PAGE profiles of soluble proteins (D) in the laminae of young leaves of oilseed rape treated (control; ▪) or not (MeJA; □) with MeJA during 7 d. Vertical bars indicate ±se of the mean (n = 3) and fit within the plot if not visible. SDS-PAGE was obtained by loading a constant amount of 3 μg of protein per lane and using silver nitrate staining. Molecular mass markers (kD) are listed on the left of the gel. A protein at 19 kD specifically induced by MeJA treatment is indicated on the right of the gel. LSU, Large subunit of Rubisco (55 kD); SSU, small subunit of Rubisco (14 kD).