TABLE 1.

Characteristics of chlorophyll fluorescence yield relaxation in WT and Q16R mutant cells

Heat-treated samples were dark-adapted for 3 min and excited with a single turnover flash, and fluorescence relaxation was measured. Relaxation curves were analyzed as detailed under “Experimental Procedures.” Standard errors show the reliability of the obtained kinetic parameters.

Strain	Fast phase (T1/amplitude)	Middle phase (T2/amplitude)	Slow phase (T2/amplitude)
	ms/%	ms/%	ms/%
No addition
WT	0.67 ± 0.04/52 ± 2	5.67 ± 0.4/28 ± 2	8.8 ± 1/19 ± 2
Q16R	0.43 ± 0.04/53 ± 3	3.46 ± 0.2/30 ± 3	17 ± 2/16 ± 0.6
With DCMU
WT	-/0	-/0	1.15 ± 0.05/100 ± 0.4
Q16R	-/0	-/0	1.14 ± 0.03/100 ± 0.4