Figure 3From: Sulphur limitation provokes physiological and leaf proteome changes in oilseed rape that lead to perturbation of sulphur, carbon and oxidative metabolismsPhotosynthetic activity (A) and intercellular CO 2 concentration (B) in leaf rank #16 of Control and S–restricted plants (Low S) after 28, 30 and 35 d of treatment. Data are means ± SE (n=3). *: Significant differences from the Control value were at p ≤ 0.05.Back to article page