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. 2013 Jan 31;8(1):e55562. doi: 10.1371/journal.pone.0055562

Figure 3. Photophysiology of cells grown under ambient and elevated CO2 versus growth light or growth rate.

Figure 3

A) Functional absorption cross-section for Photosystem II photochemistry (σPSII, A2·quanta−1) versus growth light. Solid line: Polynomial curve for pooled growth light response of σPSII under both ambient and elevated pCO2. Thin dotted lines: 95% confidence intervals on the fitted curve. B) Functional absorption cross-section for Photosystem II (σPSII) versus growth rate. C) Functional cross section for photoinactivation of Photosystem II (σi, A2·quanta−1) versus growth light. Solid line: Polynomial curve for growth light response of σi under ambient pCO2. Dashed line: Polynomial curve for growth light response of σi under elevated pCO2. Thin dotted lines: 95% confidence intervals on the fitted curves. D) Functional cross section for photoinactivation of Photosystem II (σi) versus growth rate. Solid line: Linear regression for growth response of σi under ambient pCO2. Dashed line: Linear regression for growth response of σi under elevated pCO2. Thin dotted lines: 95% confidence intervals on the fitted curves. E) Ratio of σPSII:σi versus growth light. Solid line: Polynomial curve for light response of σPSII:σi under ambient pCO2. Dash line: Polynomial curve for growth light response of σPSII:σi under elevated pCO2. Thin dotted lines: 95% confidence intervals on the fitted curves. F) Ratio of σPSII:σi versus growth-rate. Solid line: Linear regression for growth response of σPSII:σi under ambient pCO2. Dash line: Linear regression for growth response of σPSII:σi under elevated pCO2. Thin dotted lines: 95% confidence intervals on the fitted curves.