Characterizing the CO₂-response curve in photosynthesis and photorespiration: an innovative model for C₃ plant species

H.-J. KANG, T. AN, X.-L. YANG, Z.-P. YE, F.-B. WANG

Photosynthetica X:X | DOI: 10.32615/ps.2025.030  

We introduce a novel model for characterizing the CO₂-response curve in photosynthesis, addressing the limitations of the Farquhar-von Caemmerer-Berry (FvCB) model by providing a more comprehensive framework for understanding photosynthetic responses to varying CO₂ concentrations in C₃ plants. The FvCB model, while instrumental in interpreting the photosynthetic response to CO₂, does not directly estimate critical parameters such as maximum net photosynthetic rate, transit point from RuBP- to TPU-limited photosynthesis, and the CO₂ compensation point in the presence of day respiration (R_day)....