Figure 5.

Steady-state accumulation of H₂O₂ in cell suspensions from MPAO transgenic plants. Kinetics of H₂O₂ accumulation in the culture medium of cell suspensions obtained from wild-type (C) or MPAO transgenic (T) plants was determined spectrophotometrically after addition or not of 2 mm or 6 mm Spd. Data are from a single representative experiment, which was repeated in triplicate. The inset shows the remaining amount of Spd in the medium of MPAO cell suspensions at various time intervals after addition of 6 mm Spd.