Regulation of photosynthesis: Analysis of a model for sensitivity of delayed luminescence oscillation and the CO2 fixation rate to variation of the model parameters

The oscillation behavior of delayed luminescence was addressed using the earlier proposed mathematical model [Karavaev and Kukushkin, Biofizika 38, 958 (1993)]. The oscillation frequency and damping factor were calculated by Lyapunov analysis. In calculations, each of the model parameters was varied in a broad range. The results suggest that, besides the oscillation mode observed experimentally, there may be other oscillations that are more rapidly damped. Analysis of how variation in the model parameters affects the CO₂ fixation rate has shown that CO₂ assimilation differently depends on the light absorbed by photosystems I and II.