Photosynthetic complex accumulation per leaf area, as quantified via difference absorbance measurements in isolated thylakoids. A, PSII contents per leaf area, as determined from difference absorbance measurements of cytochrome b559. B, The cyt-bf contents per leaf area, as determined by difference absorbance measurements of cytochromes f and b6. C, Plastocyanin contents per leaf area, as determined from difference absorbance measurements in the far-red range of the spectrum. D, PSI contents per leaf area, as determined from difference absorbance measurements of the reaction center chlorophyll a dimer P700. Stars indicate significant differences relative to the wild type. WT, Wild type.