Table 2.

Carotenoid composition in photosystems (PS I holocomplex and PS II core complex) of the indicated genotypes

	Lutein	α-Cryptoxanthin	Zeinoxanthin	α-Carotene	β-Carotene	VAZ	Neoxanthin
WT	54.0 ± 8.1 (28)	ND	ND	1.9 ± 0.3 (1)	112.6 ± 7.7 (59)	26.1 ± 3.1 (12)	0.8 ± 0.4 (0.6)
lut1-4	1.3 ± 1.6* (1.7)	ND	14.6 ± 0.9* (12)	1.3 ± 0.5 (1)	86.1 ± 2.9* (68)	21.6 ± 1.2 (17)	0.5 ± 1.1 (<0.5)
lut5-1	51.4 ± 3.3 (26)	1.0 ± 1.1 (0.5)	ND	77.3 ± 5.8* (39)	47.7 ± 1.7* (24)	17.9 ± 1.2 (9.1)	0.6 ± 1.1 (<0.5)

The amount of carotenoid is expressed as millimoles of pigment per moles of chlorophyll a. Each value is the mean result from three experiments ± SD, with the relative molar percentage of each carotenoid given in parentheses. Student’s t test for two samples; ND, not detectable; VAZ, the sum of violaxanthin, antheraxanthin, and zeaxanthin.

*, P < 0.05.