meristem

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meristem

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meristematic tissue

a region of a plant in which active cell division (MITOSIS) occurs, the cells of the meristem not being differentiated into a specialist form. Meristematic tissues occur at the root and shoot tips (see APICAL MERISTEM giving growth in length, while increase in girth of the plant is produced by the CAMBIUM of VASCULAR BUNDLES and the INTERFASCICULAR CAMBIUM. Note that such specialist dividing zones are not found in animals, where cell division occurs in most tissues.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
Its meristematic tissue produces the leaves, roots, and stems.
meristematic tissue Plant tissue where the cells are actively dividing and rapid growth occurs.
Also, successive generations of plants derived from laboratory-cultivated meristematic tissue are less liable to develop natural differences, or mutations, known as somoclonal variation.
Developmental of embryogenic cell suspension from shoot meristematic tissue in bananas and plantains (Musa spp.).
As explained in Chapter 2, grass can be mowed regularly and survive because almost all of the meristematic tissue is located below the path of the mower blade.
Nevertheless, damage to the crown core was not severe enough to disrupt the ability of at least some vessels to provide material support to the meristematic tissue and the plant survived.
Rooney concludes that the internal pools of C and N or C/N ratios are determined primarily by tissue type (meristematic tissue has a higher N concentration than mature tissue) but evidence that these internal pools influence development is meager.
A procedure for biolistic transformation and regeneration of transgenic cotton from meristematic tissue. Plant Mol.
It may well be that differences among workers in the criteria they use for the identification of differentiating meristematic tissue as "procambium" as opposed to "residual meristem" or "developing ground tissue" can lead to major differences in interpretation in such studies (e.g., Meicenheimer, 1986).
And the meristematic tissue of root tips were dyed by carbol fuchsin and used for cytological observation.
Plants of the check germplasm line, HA 821, were severely stunted and had necrotic leaves and dying meristematic tissue after 14 d of treatment.
The freezing observed in the plants destroyed sufficient meristematic tissue to kill all test plants.