Daily Heat Stress Induces Accumulation of Non-functional PSII-LHCII and Donor-side Limitation of PSI via Downregulation of the Cyt bf Complex
Laura Laihonen, Tutta Tomberg, Linda Vuorijoki, Lauri Nikkanen, Paula Mulo, Marjaana Rantala
This study shows that prolonged heat stress in Arabidopsis thaliana reduces cytochrome b6f complex content, leading to donor-side limitation of PSI and lower carbon assimilation.
bioRxiv · Nov 6, 2025 · PreprintPlant Biology