Fig. 4.
Effect of reduced expression of 2-OGDH E2 subunit on photosynthesis and respiration in fully expanded leaves of 4-week-old Arabidopsis plants under controlled growth conditions. (A) Net photosynthesis (AN); (B) stomatal conductance (gs); (C) transpiration rate (E); (D) internal CO2 concentration (Ci); (E) intrinsic water-use efficiency (WUEi); and (F) dark respiration (Rd). Instantaneous gas exchange analysis was performed after 1 h of illumination during the light period under 150 μmol photons m−2 s−1. Values are presented as means ± SE of five individual plants per line. Different letters indicate a significant difference at P < 0.05 using one-way ANOVA followed by post hoc Tukey's test, alpha = 0.05.