AUTHOR=Canarini Alberto , Kaiser Christina , Merchant Andrew , Richter Andreas , Wanek Wolfgang TITLE=Corrigendum: Root Exudation of Primary Metabolites: Mechanisms and Their Roles in Plant Responses to Environmental Stimuli JOURNAL=Frontiers in Plant Science VOLUME=10 YEAR=2019 URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2019.00420 DOI=10.3389/fpls.2019.00420 ISSN=1664-462X