Regulation and function of a polarly localized lignin barrier in the exodermis
Plant Science Research WeeklyThe endodermal Casparian strip (CS) is a conserved lignin-based barrier in plant roots that seals the endodermal apoplastic space. Most angiosperms possess an additional root cell type, the exodermis, which also forms a barrier. However, its regulation remains poorly understood as this cell type is absent…