Light in excess of photosynthetic capacity can be damaging to cells’ constituents. Thus ways to protect against damage have evolved in photosynthetic organisms, including ways to minimize light absorption, detoxify reactive oxygen species generated by excess light, and dissipate excess absorbed light. Together, these processes are known as photoprotection.
Despite the physiological importance of photoprotection, the molecular mechanisms that protect against light stress, especially those protecting against sustained light stress, remain largely unknown. In my group, we will combine genetics, biochemistry, biophysics and physiology to elucidate the molecular mechanisms of photoprotection under sustained abiotic stress. Our research will provide insights into fundamental mechanisms of light energy capture, utilization and dissipation in plants.
Malnoë A. (2018). Photoinhibition or photoprotection of photosynthesis? Update on the (newly termed) sustained quenching component qH. Environmental and Experimental Botany 154: 123-133
Malnoë, A., Schultink, A., Shahrasbi, S., Rumeau, D., Havaux, M., and Niyogi, K.K. (2018). The Plastid Lipocalin LCNP is Required for Sustained Photoprotective Energy Dissipation in Arabidopsis. Plant Cell 30: 196-208