Fig. 8: High-light- or high-temperature-treated leaves had lower photosynthetic capacities than leaves treated with the control condition.
After S. viridis plants were treated with 4 h of control condition (ctrl_4h) or high light (HL_4h) or high temperature (HT_4h), photosynthetic parameters in treated leaves were monitored using LI-6800. Group 1 are select data from the light response curves after 20 min dark-adaptation with indicated light and temperature. Groups 2, 3, and 4 were measured immediately after 4 h of control, high light, high temperature treatments without dark-adaptation and under the indicated temperature and light condition. a Net CO2 assimilation rates. b Stomatal conductance. c PSII operating efficiency. d Electron transport rate. e Plastoquinone redox status (QA). f NPQ, Non-photochemical quenching. Values are mean ± SE, n = 3–6 biological replicates. Asterisk and pound symbols indicate statistically significant differences of HL_4h and HT_4h leaves compared to ctrl_4h leaves in the same group or under the same condition using Student’s two-tailed t-test with unequal variance (*0.01 < p < 0.05, #p < 0.01).
