Lowered rubisco activation state was a persistent effect in adaptation to TPU stress
Rubisco activation state was measured over the course of adaptation to elevated CO2. Rubisco activation state declined over a few min (Fig 3c) and remained low over the course of adaptation (Fig 3a). The prominent decline in Vcmax is also an indicator of reduced rubisco activation state (Fig 1). In addition, the total activatable rubisco activity decreased over the course of adaptation to elevated CO2 (Fig 3b).