Table 2.
Total carotenoids (lutein, neoxanthin, ß-carotene, violaxanthin (V), antheraxanthin (A), zeaxanthin (Z)) content; photoconvertible violoxanthin (V) and Z + A content in Echinochloa crus-galli, Digitaria sanguinalis and Zea mays M and BS thylakoids isolated from the leaves of control plants (ML) and after 1 h of photoinhibitory light treatment (ML → HL)
| Parameters | Zea mays | Digitaria sanguinalis | Echinochloa crus-galli | |||
|---|---|---|---|---|---|---|
| M | BS | M | BS | M | BS | |
| Total carotenoids (mol/100 mol Chl a) | ||||||
| ML | 27.4 ± 0.63 | 25.1 ± 0.84 | 24.9 ± 2.15 | 29.6 ± 0.56 | 33.6 ± 1.56 | 33.5 ± 1.41 |
| ML → HL | 28.0 ± 1.38 | 24.7 ± 1.38 | 26.3 ± 1.84 | 25.3 ± 1.89 | 30.9 ± 1.77 | 34.2 ± 0.48 |
| Z + A (mol/100 mol Chl a) | ||||||
| ML | 0.8 ± 0.14 | 0.7 ± 0.07 | 1.1 ± 0.10 | 1.3 ± 0.15 | 0.8 ± 0.10 | 1.3 ± 0.21 |
| ML → HL | 2.8 ± 0.52 | 2.2 ± 0.39 | 2.0 ± 0.21 | 1.3 ± 0.13 | 2.8 ± 0.37 | 3.6 ± 0.32 |
| Photoconvertible V (% of V + A + Z) after HL | 60.0 | 63.4 | 64.3 | 71.0 | 60.1 | 57.9 |
Photoconvertible V is expressed on the basis of the V + A + Z pool. The data represent mean values ± SD obtained from 3 different measurements of one sample from a typical experiment