Cutter, Elizabeth G. Department of Cryptogamic Botany, University of Manchester, Manchester, United Kingdom.
Last reviewed:October 2019
- Lateral roots
- Leaf primordia
- Lateral buds
- Primary thickening meristems
- Floral meristems
- Related Primary Literature
- Additional Reading
Permanently embryonic tissue involved in cell division at the apices of roots and stems, and forming dynamic regions of growth. These apical meristems, usually consisting of small, densely cytoplasmic cells, become established during embryo development. Thereafter they divide, producing the primary plant body of root and shoot. Below the apical meristems, tissue differentiation begins; the protoderm gives rise to the epidermal system, the procambium to the primary vascular system, and the ground meristem to the pith and cortex (Figs. 1 and 2). Plant apical meristems have been the object of experiments on development similar to those carried out on animal embryos. See also: Apical dominance
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