Different kinetics of photoinactivation of photosystem I-mediated electron transport and P700 in isolated thylakoid membranes (original) (raw)

2003, … of Photochemistry and …

AI-generated Abstract

The study investigates the kinetics of photoinactivation of Photosystem I (PSI) and its electron transport in isolated thylakoid membranes, particularly under varying light intensities and temperatures. The findings reveal that PSI is significantly affected by photoinhibition in cold conditions, with the presence of molecular oxygen exacerbating its sensitivity. Key results indicate that under high illumination, the inactivation pattern of PSI differs notably between temperatures, providing insights into the mechanisms underlying PSI photoinhibition and potential protective measures.