AUTHOR=Xu Xiaodong TITLE=Editorial: Plant circadian rhythms JOURNAL=Frontiers in Plant Science VOLUME=13 YEAR=2022 URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2022.1109900 DOI=10.3389/fpls.2022.1109900 ISSN=1664-462X