Study on Post-Steady-State Chlorophyll a Fluorescence Kinetics of plants

Abstract

The study uses Fo’ model of PAM 2100 to measure the Chlorophyll a Fluorescence Kinetics of O’-P’-F-C-S multi-stage change in plants leaves under steady state of photosynthesis which is induced through alternation of far-red light, darkness, and actinic light. We call it “Post-Steady-State Chlorophyll a Fluorescence Kinetics” (PSF). The results have demonstrated that the above process has gradually evolved into the steady-state with the light induction process moving on. It is closely related with the redox state of the photosynthetic electron chain and the activation of the carbon assimilation. At the same time, this method has provided an effective means of research into the electronic transfer of photosynthesis and the dynamic change process of the carbon assimilation when the stomata of the CAM plants closes in light.