AUTHOR=Lombardi Nadia , Woo Sheridan Lois , Vinale Francesco , TurrĂ  David , Marra Roberta TITLE=Editorial: The Plant Holobiont Volume II: Impacts of the Rhizosphere on Plant Health JOURNAL=Frontiers in Plant Science VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2021.809291 DOI=10.3389/fpls.2021.809291 ISSN=1664-462X