AUTHOR=Agusti Javier , Ramireddy Eswarayya , Brumos Javier TITLE=Editorial: Integration of Hormonal Signals Shaping Root Growth, Development, and Architecture JOURNAL=Frontiers in Plant Science VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2021.634066 DOI=10.3389/fpls.2021.634066 ISSN=1664-462X