Figure 7.

OsGLPs protect against heavy metal-induced oxidative stress. (A) Histochemical localisation of H₂O₂ in leaves of two-week-old WT (wild type) and transgenic seedlings grown for 5 days under normal conditions, 10 μmol L⁻¹ CuSO₄ treatment, or 25 μmol L⁻¹ CdCl₂ treatment. The shade of brown represents the amount of H₂O₂. Scale bar = 2 mm. (B) MDA content of leaves of two-week-old WT and transgenic seedlings grown for 5 days under normal conditions, 10 μmol L⁻¹ CuSO₄ treatment, or 25 μmol L⁻¹ CdCl₂ treatment. Values are the mean ± SD; n = 3. Different letters indicate a difference of p ≤ 0.05 by the LSD test. (C) The integrity of the cell plasma membrane of rice roots of two-week-old WT and transgenic seedlings grown for 5 days under normal conditions, 10 μmol L⁻¹ CuSO₄ treatment, or 25 μmol L⁻¹ CdCl₂ treatment. Red represents the damage to the plasma membrane. The darker the red, the worse the integrity of the plasma membrane. Scale bar = 200 μm.