3.5 | Rubisco activase
There were no clear indications of photosynthesis being limited by
Rubisco activase in either control or treatment plants. The temperature
trends of observed and modeled initial slopes appeared to diverge when
leaf temperatures exceeded 42°C (Fig. S4), but only in control plants
transferred to treatment conditions was there a clear separation of the
curves and their 95% confidence intervals within the measured
temperature range. Treatment plants transferred to control conditions
experienced moderate Rubisco activase limitation at most temperatures
(Fig. S4).