AUTHOR=Nardi Serenella , Schiavon Michela , Muscolo Adele , Pizzeghello Diego , Ertani Andrea , Canellas Luciano Pasqualoto , Garcia-Mina Jose M. TITLE=Editorial: Molecular characterization of humic substances and regulatory processes activated in plants, volume II JOURNAL=Frontiers in Plant Science VOLUME=15 YEAR=2024 URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2024.1413829 DOI=10.3389/fpls.2024.1413829 ISSN=1664-462X