vascular bundle


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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.
References in periodicals archive ?
Augmented vascular bundle area is an imperative trait for survival in damaged environments.
It must be noted, however, that some characters that are typically found in the leaves of Polygonaceae, as ochrea at the base of the petiole, petiole with several vascular bundles, stomata usually present on both surfaces, vascular bundles of the veins accompanied by sclerenchyma, and 2-4 layers of palisade parenchyma (Metcalfe & Chalk, 1957), were not registered in cotyledons and eophylls of R.
Vascular bundle area (um2): Rosa Gruss-an-Teplitz contained highest vascular bundle area than other species and maximum value was recorded under untreated wastewater (64924.
Digitaria insularisshowed differences in stomata, vascular bundle, parenchyma, xylem/ phloem relation and trichomes that caninfluence the different glyphosate efficacy between biotypes.
The vascular bundle concentration is the highest on the top part.
In general, the vascular bundles are a little larger and less numerous per unit area, whereas parenchyma cells are unlignified in the Tight' zones, in contrast to the bundles and parenchyma in the 'dark' zones.
Leaf vascular bundle penetration by SB has been previously reported in only 2 species of scales (Heriot 1934; Washington & Walker 1990).
Collateral vascular bundles are surrounded by a parenchyma sheath, unrelated to sclerenchyma (Fig.
Viewed in cross section, they appear just like the vascular bundle in a stem.
This line appears white because of the presence of the lateral thoracodorsal nerve and vascular bundle.
Some bark can be removed at the point of contact with the soil to expose the vascular bundle, the area which will provide the roots.