Figure 4 | Scientific Reports

Figure 4

From: Loss-of-function of an Arabidopsis NADPH pyrophosphohydrolase, AtNUDX19, impacts on the pyridine nucleotides status and confers photooxidative stress tolerance

Figure 4

Photosynthetic parameters in nudx19 mutants under high light.

Three-week-old wild-type and mutant plants were exposed to high light (1,000 μmol photons m−2 s−1). (a–c) øPSII, 1-qP, and NPQ in leaves was determined at 25 °C after dark adaptation for 15 min. Data are means ± SD for 4 individual experiments. (d, e) The initial activities of FBPase and SBPase in leaves were measured. Data are means ± SD for 4 individual experiments (≥3 plants for 1 experiment). Significant differences: *P < 0.05 vs. the value of wild-type plants. (f) CO2 fixation was measured in leaves with an LI-6400 portable photosynthesis system. Each data point represents the mean ± SD of at least 5 individual experiments.

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