Table 1.

Pigment analysis of plants grown under different light conditions.

	GL200	GL600	GL1800
Chls/fresh weight [mg/g]	0.8621 ± 0.1156	0.7821 ± 0.0354	0.3893 ± 0.0986
Chl a/b	3.235 ± 0.022	3.249 ± 0.006	3.562 ± 0.047
Chl/Car	3.905 ± 0.024	3.698 ± 0.015	3.228 ± 0.054
Neo/100 Chls	3.424 ± 0.048	3.743 ± 0.031	4.004 ± 0.178
Vio/100 Chls	2.753 ± 0.033	3.035 ± 0.005	4.106 ± 0.183
Ant/100 Chls	0.196 ± 0.023	0.381 ± 0.010	0.621 ± 0.030
Lut/100 Chls	12.364 ± 0.0125	12.900 ± 0.041	13.981 ± 0.284
Zea/100 Chls	0.195 ± 0.005	0.296 ± 0.027	0.678 ± 0.018
β-Car/100 Chls	6.677 ± 0.017	6.688 ± 0.069	7.592 ± 0.176
Cars/100 Chls	25.609 ± 0.157	27.044 ± 0.108	30.98 ± 0.513
(Z + 0.5 × A)/(Z + A + V)	0.0932 ± 0.002	0.131 ± 0.007	0.183 ± 0.003

Total chlorophylls (Chls) were quantified by fitting the 80% acetone extracts from a leaf from five different plants (n = 5) grown under GL200, 600, and 1800 and normalized to the fresh weight. The chlorophyll a/b (Chl a/b) ratio and chlorophyll/carotenoid (Chl/Car) ratio was determined in the same way from isolated thylakoid membranes in three repetitions (n = 3). The same extracts were used for the quantification by HPLC of the carotenoids: neoxanthin (Neo), violaxanthin (Vio), anteraxanthin (Ant), zeaxanthin (Zea), lutein (Lut) and β-carotene (β-car). All carotenoids were calculated per 100 Chls.