Table 1.

Lifetime components of up-conversion fluorescence decay curves from PSII-LL and PSII-HL at either pH 7.5 and 5.5

	pH	a1	τ1a	a2	τ2b	aLHCSR3	τLHCSR3c
		%	ps	%	ns	%	ps
PSII-LL	7.5	70	24.9 ± 0.3	30	0.2
PSII-LL	5.5	73	20.9 ± 0.2	27	0.2
PSII-HL	7.5	56	24.9 ± 0.3	23	0.2	20.7 ± 3.6	18.2 ± 1.9
PSII-HL	5.5	61	20.9 ± 0.2	17	0.2	22.3 ± 3.9	9.2 ± 2.2

^a Linked based on pH.

^b Fixed to 0.2 ns.

^c Linked based on the existence of LHCSR3.