root initial cell PO:0000059 plant_anatomy 根始原細胞 (Japanese, exact) root initial (exact) An initial cell (PO:0004011) that is part of a root apical meristem (PO:0020147) and by division gives rise to two cells, one of which remains in the meristem, while the other is produces different root cells. root stem cell (related) c&#233lula inicial de la ra&#237z (Spanish, exact) cambial initial cell plant epidermal initial cell initial cell protonema side branch initial cell protonema sub-apical initial cell