Table 1.
Photosynthetic performance of Arabidopsis plants grown on solid MS medium or on soil and subjected to MV treatment
| Fv/Fm | ΦPSII | NPQ | 1−qP | |
|---|---|---|---|---|
| Growth condition | ||||
| MS, control | 0.56 ± 0.02 | 0.44 ± 0.02 | 0.36 ± 0.02 | 0.11 ± 0.01 |
| Soil, control | 0.64 ± 0.03 | 0.79 ± 0.03 | 0.44 ± 0.03 | 0.08 ± 0.01 |
| Time after MV treatment of soil-grown plants | ||||
| 1 h | 0.59 ± 0.03 | 0.33 ± 0.02 | 0.51 ± 0.03 | 0.15 ± 0.01 |
| 2 h | 0.49 ± 0.03 | 0.30 ± 0.02 | 0.33 ± 0.02 | 0.18 ± 0.01 |
| 3 h | 0.39 ± 0.02 | 0.17 ± 0.02 | 0.23 ± 0.01 | 0.31 ± 0.02 |
Two-week-old Arabidopsis plants were grown autotrophically on soil or in MS medium plus 3 % (w/v) sucrose. Chlorophyll fluorescence was measured in attached Arabidopsis leaves and the following parameters were calculated: Fv/Fm, ΦPSII, NPQ and 1−qP. Each given value ± SD represents the average of four identical experiments. The leaf temperature was 23°C