AUTHOR=Llorens Laura , Neugart Susanne , Vandenbussche Filip , Castagna Antonella TITLE=Editorial: Ultraviolet Radiation: Friend or Foe for Plants? JOURNAL=Frontiers in Plant Science VOLUME=11 YEAR=2020 URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2020.00541 DOI=10.3389/fpls.2020.00541 ISSN=1664-462X