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.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

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.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
However, the total phloem proportion and its proportion in one vascular bundle were higher in Clone 1 (Figure 2-D) compared to other genotypes.
On the adaxial face, the palisade parenchyma was usually interrupted by 8-10 colenchymatic cells, which made contact with the fibers that enveloped the vascular bundle (Figures 3A and 3C-D).
The vascular bundle frequency in the node increased from 3.01/[mm.sup.2] to 5.63/[mm.sup.2] from the base to the top portion of the bamboo culm (Table 1).
Cuticle (Cu), epidermis (Ep), stomata (St), bulliform cell (BC), mesophyll (Me), sheath of the vascular bundle (SVB), sclerenchymatic fibers (SF), parenchyma of filling (PF), and vascular bundle (VB).
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 (64924.9 um2) followed by same Rosa species in treated wastewater (57953.6 um2) and canal water (50285.7 um2) during 2012, while minimum of it in R.
This information proves that it is easier to achieve better polishing effects under UV conditions mainly because diamond grains can go through a vascular bundle of bamboo charcoal faster due to the UV effect.
(1) = epidermis, (2) = aerenchyma, (3) = septum, (4) = parenchyma, (5) = vascular bundle, and (6) = inner cortex.
Caption: Figure 3: Computed tomographic axial view of the emphysema in the upper thorax, splaying the vascular bundle and running posterior to the clavicles with widening of the pectoral muscles.
Besides, the vascular bundle distance and the xylem/phloem relation showed statistical differences between both biotypes (Table 1).

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