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 ?
In Minasia, the chlorophyll parenchyma is delimited by the presence of the colorless parenchyma in the middle of mesophyll, which interconnects the vascular bundles, and by the bundle sheath extensions, and it is generally restricted to sectors under the stomata (Figs.
The anatomical characteristics, such as vascular bundle frequency (VBF), fiber length (FL), and parenchyma lumen diameters (PLD) of internodes and nodes, were determined using the methods reported in our previous research (Huang et al.
This scale is then one of few armoured scale species that are capable of piercing lignified plant cells walls like fibers and the xylem vessels in vascular bundles. Leaf vascular bundle penetration by SB has been previously reported in only 2 species of scales (Heriot 1934; Washington & Walker 1990).
Wild rice stems also have lignified vascular bundle cells, again with some evidence of suberin, but they are only lignified in Cynodon dactylon, Eremochloa ophiuroides, Paspalum distichum, and Hemarthria altissima.
There is no information available on how the vascular bundles grow in grape berries [13] and how this growth is related to the three stages of berry growth.
These characteristics include reduced epicuticular wax deposits, a relatively low thickness of the epidermis and cuticle, lower phloem development, abundant intercellular spaces, rudimentary vascular bundles and deficient stomatal mechanisms (ROMANO; MARTINS-LOUCAO, 2003).
'We've imaged cross-sections of bamboo to identify structural components, such as the stiff vascular bundles. We've used transmission electron microscopy to identify cellular-level features and have measured the mechanical properties of bamboo through using micro-bend test using specimens from different positions in the bamboo stem.
These include: non-vascular fibrous strands located under the adaxial hypodermis and in the spongy parenchyma between the major vascular bundles, variable in shape and in number of fibers; round stegmata surrounding fiber strands; cellulose non-vascular fiber very elongated, acute at the ends, with thick walls; lignified vascular fibers short, septate, spindle-shaped and acute, located at the ends of the major and minor vascular bundles.
Collateral vascular bundles are surrounded by a parenchyma sheath, unrelated to sclerenchyma (Fig.
Results: The mistletoe lectins I--III in internodes were located mainly in cells of the parenchyma of the cortex, in sclerenchyma tissue next to the vascular bundles and in the companion cells of the phloem.

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