Table 1.
Comparison of light-acclimation responses of O. elata (AA-I), O. biennis (AB-II), and their green chloroplast substitution line AA-II
| Parameter | AB-II 300 µE m−2 s−1 | AB-II 600 µE m−2 s−1 | AA-I 300 µE m−2 s−1 | AA-I 600 µE m−2 s−1 | AA-II 300 µE m−2 s−1 | AA-II 600 µE m−2 s−1 |
|---|---|---|---|---|---|---|
| Chlorophyll a/b | 4.01 ± 0.06a | 3.60 ± 0.15b | 4.08 ± 0.05a | 4.04 ± 0.16a | 3.92 ± 0.08a | 3.74 ± 0.15b |
| Chl. (mg m−2) | 631.0 ± 18.1ab | 548.6 ± 104.3c | 668.1 ± 27.1ad | 688.3 ± 58.8d | 556.7 ± 8.4b | 464.4 ± 34.1e |
| FV/FM | 0.79 ± 0.01a | 0.73 ± 0.08b | 0.81 ± 0.01a | 0.74 ± 0.06b | 0.81 ± 0.01a | 0.71 ± 0.03b |
| ETRII (µmol m−2 s−1) | 172.3 ± 14.0a | 75.1 ± 30.1b | 171.5 ± 5.9a | 137.5 ± 51.4c | 147.9 ± 13.7a | 84.4 ± 14.7b |
| gH+ (s−1) | 39.2 ± 2.5a | 27.4 ± 3.8b | 43.0 ± 2.9ac | 45.8 ± 11.0c | 40.4 ± 3.6a | 33.3 ± 2.8b |
Plants were cultivated at either 300 µE m−2 s−1 or 600 µE m−2 s−1 actinic light intensity. Values are means ± SD (n = 5–6 plants grown in parallel). Different lowercase letters indicate significant differences (P < 0.05) according to two-way ANOVA with interactions followed by Tukey’s post-hoc testing (Supplemental File S4).