vascular bundle

n. A strand of primary conductive plant tissue consisting chiefly of xylem and phloem. Also called fibrovascular bundle.

vascular bundle

n (Botany) a longitudinal strand of vascular tissue in the stems and leaves of higher plants

vas′cular bun′dle

n. any of the strands of the conducting channels in vascular plants composed of xylem and phloem in various structural arrangements. [1880–85]

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Noun

vascular bundle - a unit strand of the vascular system in stems and leaves of higher plants consisting essentially of xylem and phloemfibrovascular bundle, vascular strandvascular tissue - tissue that conducts water and nutrients through the plant body in higher plantsnervure, vein - any of the vascular bundles or ribs that form the branching framework of conducting and supporting tissues in a leaf or other plant organ

vascular bundle

vascular bundle,

in botany, a strand of conducting tissue extending lengthwise through the stems and roots of higher plants, including the ferns, fern allies, gymnosperms, and angiosperms. The vascular bundle consists of xylem, which conducts water and dissolved mineral substances from the soil to the leaves, and phloem, which conducts dissolved foods, especially sugars, from the leaves to the storage tissues of the stem and root. The structure of vascular bundles varies among the different plant groups. See woodwood,
botanically, the xylem tissue that forms the bulk of the stem of a woody plant. Xylem conducts sap upward from the roots to the leaves, stores food in the form of complex carbohydrates, and provides support; it is made up of various types of cells specialized for each of
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Vascular Bundle

in plants, the aggregate of elements of the vascular tissue. The vascular bundle appears in the sprout from the apical meristem or, more precisely, from the procam-bium. It comprises the xylem, the phloem, mechanical tissues, and cells of the living parenchyma. A vascular bundle may be complete or incomplete; that is, in the latter case it may consist of only phloem or only xylem. Dicotyledons are marked by open vascular bundles; in other words, part of the procambium is not differentiated into vascular tissue and remains in the form of cambium. Monocotyledons have closed bundles, without a cambium.

In a collateral bundle, the phloem occurs along one side of the stem, outside the xylem. The presence of phloem along both sides of the xylem makes the bundle bicollateral. A concentric bundle is one that is either amphibasal, with the xylem surrounding the phloem, or amphicribral, with the phloem surrounding the xylem. The structure of a vascular bundle may vary at different points along the stem.

In roots the vascular bundles form radial structures consisting of individual alternating sections of xylem and phloem along the radii of the vascular cylinder.

vascular bundle

[′vas·kyə·lər ′bənd·əl] (botany) A strandlike part of the plant vascular system containing xylem and phloem.

vascular bundle

n. A strand of primary conductive plant tissue consisting chiefly of xylem and phloem. Also called fibrovascular bundle.

vascular bundle

a structure of vascular plants that runs up through the roots, into the stems and out into the leaves, and whose function is transport within the plant. Water and ions are transported mainly by XYLEM, and dissolved organic solutes mainly by the PHLOEM. Some vascular bundles are described as open since they contain dividing CAMBIUM tissue between the xylem and phloem.

vascular bundle

vascular bundle

vascular bundle

vas′cular bun′dle

vascular bundle

vascular bundle,

Vascular Bundle

vascular bundle

vascular bundle

vascular bundle

vascular bundle

vascular bundle

Synonyms for vascular bundle

noun a unit strand of the vascular system in stems and leaves of higher plants consisting essentially of xylem and phloem

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