Table I. Half-times of electron donation to PSII from Asc (in heat-stressed wild-type and vtc2-3 Arabidopsis plants) and from Asc + DPC (in DPC-treated and heat-stressed vtc2-3 Arabidopsis mutant) and the half-time of the decrease of the amplitude of the K peak (as determined in Fig. 3B) in heat- + light-treated wild-type and vtc2-3 Arabidopsis plants.

Parameters	Wild Type	vtc2-3	vtc2-3 + 1 mm DPC
Half-time of electron donation to PSII	30.5 ± 1.3 ms	49.7 ± 3.6 ms	30.4 ± 2.5 ms
Half-time of the decrease of the K peak in the light	2.8 ± 0.5 min	1.4 ± 0.1 min	2.5 ± 0.3 min