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. 2018 Nov 14;9:1648. doi: 10.3389/fpls.2018.01648

FIGURE 2.

FIGURE 2

Light intensity dependence of the proton conductivity of the thylakoid ATP synthase (gH+) (A) and the pmf (B) across the thylakoid membranes at 6 and 25°C. Before this analysis, leaves were illuminated at 1178 μmol photons m-2 s-1 for 15 min to activate photosynthesis. Values for gH+ and pmf were obtained after exposure to each light intensity for 3 min. Values are means ± SE (n = 4). Asterisks indicate a significant difference between 6 and 25°C.