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fibrous root system
a mat of generally thin roots spreading out below the soil surface, with no root standing out as the main one
the main photosynthetic organ of most vascular plants, consisting of a flattened blade and petiole stalk
consists of one or more tissues organized into a functional unit connecting the organs of a plant
lateral meristem that adds layers of vascular tissue called secondary xylem and secondary phloem
lateral meristem that replaces the epidermis with periderm, which is thicker and tougher
cells that continue to divide until the cells they produce become specialized within developing tissues
a root part that protects the apical meristem as the root pushes through the soil during primary growth
the innermost layer of the cortex/a cylinder one cell thick that forms the boundary with the vascular cylinder
finger-like projections along the flanks of the apical meristem, from which leaves arise
produce elongated cells such as the tracheids, vessel elements, and fibers of the xylem
initials which are shorter and oriented perpendicular to the stem or root axis, and produce vascular rays
small raised aresas of the periderm which enable living cells within a woody stem or root to exchange gases with the outside air
An approach to studying biology that aims to model the dynamic behavior of whole biological systems.
signals that continuously indicate to each cell its location within a developing structure
the morphological changes that arise from transitions in shoot apical meristem activity
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