Table I. Chl content of affinity chromatography eluates from different genotypes.

Chl content is shown for fractions eluted from affinity chromatography with 150 mm imidazole for different genotypes. Values are expressed as fractions of starting material (solubilized thylakoids). Chl a/b ratios of chromatography eluates and starting thylakoids are also shown. Values are reported as averages ± sd (n = 9 for Chl content, n = 3 for Chl a/b ratios). Asterisks indicate values significantly different from psbs KO (Student’s t test: *, P = 0.05; and **, P = 0.01).

Genotype	Chl Content in Chromatography Eluate	Chl a/b Ratio
		Chromatography Eluate	Thylakoids
	% of solubilized thylakoids
N-His-PSBS	0.081 ± 0.020**	2.95 ± 0.17*	2.41 ± 0.03
psbs KO	0.029 ± 0.005	4.41 ± 0.59	2.38 ± 0.09
C-His-PSBS	0.049 ± 0.010**	3.15 ± 0.15*	2.38 ± 0.03
lhcsr KO	0.031 ± 0.003	4.38 ± 0.18	2.34 ± 0.03
Wild type	0.030 ± 0.003	4.60 ± 0.59	2.39 ± 0.03