lateral root primordium

Term Information

plant anatomy
exact: portion of lateral root primordium tissue
exact: primordio de raíz lateral (Spanish)
exact: 側根原基 (Japanese)
A root primordium (PO:0005029) that is part of a root (PO:0009005) and is committed to the development of a lateral root (PO:0020121). [source: POC:curators]
A lateral root primordium may arise from cells of a pericycle (PO:0006203) in a root, as in most seed plants (pericyclic lateral root primordium; PO:0025492), or from cells of an endodermis (PO:0000252) or other tissue in ferns and some seed plants (non-pericyclic lateral root primordium: PO:0025493). Transition from lateral root primordium to lateral root occurs with the formation of a root cap (PO:0020123), shortly after the development of a root apical meristem (PO:0020147), which can occur before the lateral root penetrates the exterior of the parent root.

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