meristem

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Related to Meristematic cell: procambium, quiescent center, meristematic tissue

meristem

or

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 ?
[10] De Campos JMS and Viccini LF (2003) Cytotoxicity of aluminum on meristematic cells of Zea mays and Allium cepa.
Thus, a transverse row of three daughter cells is formed, of which the middle one is wedge-shaped and acts as a meristematic cell (Nayar, 1962; Nayar & Kaur, 1971; Rodriguez-Rios, 1973; Duran & de la Sota, 1996; Perez-Garcia et al., 1996).
Investigations using high-tech scanning electron and confocal microscopes showed that these stems contained normal-size meristematic cells. But there were more of them, resulting in the added height and width.
3c), and few unpalatable secondary metabolites, are similar to meristematic cells, such as the cambium initials (Vecchi et al., 2013), or the cells in axillary buds (Ferreira et al., 2017b).
Cryopreservation of Garcinia cowa shoot tips by vitrification: The effects of sucrose preculture and loading treatment on ultrastructural changes in meristematic cells. CryoLetters, 32, 188-196.
Chromosomal Alterations Index (CAI) was evaluated by counting chromosomal alterations (multipolar anaphases, chromosomal breaks, C-metaphase, adhesions, losses and chromosomal bridges) in the meristematic cells of the root.
Sliwmska et al., "Antimitotic effect, G2/M accumulation, chromosomal and ultrastructure changes in meristematic cells of Allium cepa L.
Protective effect of wild ginseng cambial meristematic cells on D-galactosamine-induced hepatotoxicity in rats.
Based on the discussed context, the goal of this study was to evaluate cytotoxicity, genotoxicity and mutagenicity of processed liquid preparations ready for consumption, Orange and Grape flavors, of five relevant food companies in the Brazilian market, through the meristematic cells of A.
Deficiency of B affects vegetative as well as reproductive growth in plants thus causing cell expansion inhibition, death of meristematic cells and reduction in plant fertility (Marchner, 1995).
Table 1 presents the number of cells in interphase and at different stages of cell division, and the values of mitotic index obtained from meristematic cells of A cepa roots treated with water and food flavorings of Passion Fruit and Vanilla.
This suggests that new meristematic cells were initiated again in repetitive way (repetitive organogenesis) after subculturing, resulting in more proliferation and regenerated shoots.