xylem
wood, water-conducting portion of a vascular bundle
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
Xylem
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Xylem
Tracheids and vessel elements
In vascular plants, the xylem is the tissue that carries water up the root and stem.
ZIPPY XYLEM
The xylem of a plant is the system of tubes and transport cells that circulates water and dissolved minerals. As a plant, you have roots to help you absorb water.
xylem Tissue in the vascular system of plants that moves water and dissolved nutrients from the roots to the leaves; composed of various cell types including tracheids and vessel elements.
xylem
[Gk. xylon, wood]
The tube-shaped, nonliving portion of the vascular system in plants that carries water and minerals from the roots to the rest of the plant.
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xylem. Plant tissue that conducts water and nutrients from the roots up through the plant.
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xylem - the woody tissue of a plant; the part of the vascular bundle, consisting of tracheal tissue, Â arenchyma, etc.
xylem ray That part of a vascular ray which is located in the wood or secondary xylem. Consists of a radial file of parenchyma cells, Also termed wood ray.
Xylem also contains tracheids. These are individual cells tapered at each end so the tapered end of one cell overlaps that of the adjacent cell. Like xylem vessels, they have thick, lignified walls and, at maturity, no cytoplasm.
Xylem is a term applied to woody (lignin-impregnated) walls of certain cells of plants. Xylem cells tend to conduct water and minerals from roots to leaves.
part of a xylem vessel in a higher plant, arising from a single cell. The end walls are perforated and may completely disappear, giving rise to a continuous tube. The remaining walls are thickened and lignified and there is no protoplast.
Accordingly, the main vascular bundle of xylem and phloem present in the stem of a plant bifurcates into leaf traces, which are branches of vascular tissue that supply leaves.
The xylem and phloem are vascular tissues found in complex plants. Their function is to transport water, mineral ions and organic nutrients from roots to leaves and leaves to roots.
pits -- Thin regions of the cell wall in xylem conducting cells. Their structure is an important characteristic for recognizing different kinds of wood.
plasmodesmata -- Cytoplasmic connections between neighboring cells in plant tissues.
 See also: Plant, Cells, Tissue, Trans, Organ
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