How does plant photoprotection respond UV-A radiation?

Short wavelengths within the UV-A region of the solar spectrum fall between the known action spectra of the UV-B photoreceptor, UVR8, and the photoreceptors CRYPTOCHROME and PHOTOTROPIN which are predominantly blue light and long-wave UV-A photoreceptors.  Our new paper, out in Physiologia Plantarum today questions the roles played by these photoreceptors in response to UV-A and whether radiation in the blue and UV-A regions can help prime plant photoprotection for subsequent high irradiance.

Craig Brelsford and Matt Robson take leaf chlorophyll fluorescence measurements under high irradiance.

Find the paper here: Brelsford et al., (2018) Do UV‐A radiation and blue light during growth prime leaves to cope with acute high light in photoreceptor mutants of Arabidopsis thaliana?

Leave a Reply

Your email address will not be published. Required fields are marked *