pericycle
Quick Summary
The pericycle is a layer of cells surrounding the vascular cylinder in plants. It is typically composed of parenchymatous or sclerenchymatous cells. In many plants, including gymnosperms and angiosperms, lateral roots develop from the pericycle. Cells in this layer enlarge and divide to form a dome of tissue, which pushes outward to become a new root apex. The vascular cambium, responsible for secondary growth (increasing girth), also originates in the pericycle in woody roots. The pericycle's ability to differentiate into new tissues makes it a meristematic layer.123
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rootMorphology and growth…and is surrounded by the pericycle, a layer of cells that gives rise to branch roots. The conductive tissues of the vascular cylinder are usually arranged in a star-shaped pattern. The xylem tissue, which carries water and dissolved minerals, comprises the core of the star; the phloem tissue, which carries…
Read More…and is surrounded by the pericycle, a layer of cells that gives rise to branch roots. The conductive tissues of the vascular cylinder are usually arranged in a star-shaped pattern. The xylem tissue, which carries water and dissolved minerals, comprises the core of the star; the phloem tissue, which carries…
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angiospermDermal tissue…vascular tissue system, called the pericycle (see below Plant organs: Roots).
Read More…vascular tissue system, called the pericycle (see below Plant organs: Roots).
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lower vascular plantVascular system…turn is bounded by a pericycle of one or two cell layers and a single cell layer of endodermis. The pericycle is generally the layer giving rise to the branches in roots, and the endodermis seems to regulate the flow of water and dissolved substances from the surrounding cortex. More…
Read More…turn is bounded by a pericycle of one or two cell layers and a single cell layer of endodermis. The pericycle is generally the layer giving rise to the branches in roots, and the endodermis seems to regulate the flow of water and dissolved substances from the surrounding cortex. More…
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plant developmentThe root tip…cylinder remain undifferentiated, forming the pericycle, a tissue important in the formation of lateral roots. Within the bounds of the pericycle, the xylem is star-shaped in section, with the first-formed xylem elements (protoxylem) occupying the ridges. The phloem lies in the intervening grooves. Outside of the endodermis, the cortical cells…
Read More…cylinder remain undifferentiated, forming the pericycle, a tissue important in the formation of lateral roots. Within the bounds of the pericycle, the xylem is star-shaped in section, with the first-formed xylem elements (protoxylem) occupying the ridges. The phloem lies in the intervening grooves. Outside of the endodermis, the cortical cells…
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