Table 1.
Photosynthetic pigments (total chlorophylls, total carotenoids, V + A + Z) and vitamin E (α-tocopherol) in wild-type and npq1 Arabidopsis plants before (LL) and after 3 days at 1,500 μmol of photons·m−2 (HL)
| Compound | Wild type
|
npq1
|
||
|---|---|---|---|---|
| LL | HL | LL | HL | |
| Pigments, ng·mm−2 | ||||
| Chls | 228.9 ± 13.7 | 201.3 ± 10.5 | 213.8 ± 7.6 | 170.2 ± 15.5 |
| Carotenoids | 53.6 ± 2.6 | 81.1 ± 5.8 | 55.2 ± 0.9 | 74.8 ± 9.7 |
| V + A + Z | 9.5 ± 0.1 | 28.2 ± 2.8 | 11.1 ± 0.3 | 22.9 ± 1.6 |
| Vitamin E, μg·g−1 F.W. | 9.2 ± 1.0 | 29.5 ± 1.6 | 9.3 ± 2.1 | 19.9 ± 2.0 |
Data are mean values of 3–6 separate experiments ± SD. F.W., fresh weight.