Figure 5From: Co-overexpression of two Heat Shock Factors results in enhanced seed longevity and in synergistic effects on seedling tolerance to severe dehydration and oxidative stressEnhanced protection of the PSII and of cellular membranes in the 35S:A9/A4a seedlings. Results from experiments performed with the same sibling line pairs as in Figure 4. Data are mean values ± SE. (A) Comparison of maximum quantum yield (Fv/Fm) of PSII. Sample sizes are indicated with bracketed numbers within the shaded bars. Asterisks denote statistically significant differences (P ≤ 0.01), observed only after the 300 mM H2O2 treatment. (B) Diminished electrolyte leakage (EL) in the 35S:A9/A4a seedlings. Results from two independent experiments (n = 17). EL was determined in deionized (MilliQ) water at different times between 1 h and 24 h.Back to article page