A photoprotection dial maps holistic light-stress response in diatoms
Authors: Croteau, D., Jaubert, M., Quemar, T., Falciatore, A., Maes, A., Bailleul, B.
Date: 2025-12-15 · Version: 1
DOI: 10.64898/2025.12.11.693581 Category: Plant Biology
Model Organism: Phaeodactylum tricornutum
▶ AI Summary
Using ten Phaeodactylum tricornutum mutant strains with graded constitutive Lhcx1 expression, the study links NPQ induction under high light to physiological outcomes (oxidized QA, increased cyclic electron flow) and extensive transcriptomic reprogramming, affecting nearly half the genome. The approach demonstrates that higher NPQ mitigates PSII damage, boosts ATP production for repair, and drives distinct gene regulatory networks, providing a model framework for dissecting photosynthetic and gene expression integration.
non-photochemical quenching Phaeodactylum tricornutum high-light stress transcriptomics photosynthetic regulation