Figure 8.

Comparison of H₂O₂ induction by fungal elicitor, ergosterol, and chitosan as influenced by t-DHSA. H₂O₂ induction by fungal elicitor (10 μg mL⁻¹) in the absence (−) or presence (+) of 100 μm t-DHSA was determined as in Figure 1, ergosterol (10 nm) or chitosan (10 μg mL⁻¹) were used instead of fungal elicitor. Means ± sd from three independent experiments are shown. The results are given relative to the activity of fungal elicitor in the absence of t-DHSA.