secondary xylem development stage cell division stage of secondary xylem plant_structure_development_stage 二次木部の細胞分裂期 (Japanese, exact) PO_GIT:447 elemento de tr&#225quea de madera tard&#237a (Spanish, exact) This stage includes production of xylem mother cells by cambial initials and production of tracheary elements (PO:0000290) or other xylem cells by xylem mother cells. Precedes a cell differentiation stage of secondary xylem (PO:0025469), although cell differentiation may begin before a cell division stage of secondary xylem ends. A secondary xylem development stage (PO:0025427) that occurs during the interval between the first and last cell division in a portion of secondary xylem tissue (PO:0005848), during which cells are produced by divisions of cambial initials (PO:0000295) or xylem mother cells. 2012-03-14T02:07:50Z rwalls PO:0025463