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. 2017 Feb 9;68(5):1137–1155. doi: 10.1093/jxb/erx009

Fig. 4.

Fig. 4.

Accumulation levels of the different components of the photosynthetic electron transport chain in wild-type tobacco and two ∆psaI mutants. Plants were grown in low-light conditions (100 µE m−2 s−1), intermediate-light conditions (350 µE m−2 s−1), high-light conditions (1000 µE m−2 s−1), and in intermediate-light conditions at an elevated temperature of 38°C and a decreased temperature of 12°C. The components of the electron transport chain were normalized to a chlorophyll basis. Data are the averages of a minimum of six biological replicates from at least two independent plant cultures, and the standard deviation is shown. The asterisks indicate significant differences between wild type and mutants. (A) PSII concentration. (B) Cytochrome b6f complex concentration. (C) Plastocyanin concentration. (D) PSI concentration. (E) Redox-active cytochrome f. (F) ATP synthase activity (gH+).