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  • noun

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undifferentiated tissue from which new cells are formed, as at the tip of a stem or root

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perpendicular to the apical surface), as opposed to periclinal and oblique divisions, in a single plane within the single-celled or pluricellular apical meristem and prolonged meristematic activity by its derivatives (von Aderkas and Cutter, 1983).
Because we clipped aspens on the main stem, a loss of apical meristem dominance may help explain the compensatory response we observed.
The apical meristem or bud of an axis is thus characterized by the PA of the growth unit that it may produce and a metamer is characterized by its PA i (which is the PA of the growth unit that it belongs to).
It was to test the influence of the varying GMF on changes of cell structure of apical meristems that these cytology experiments were conducted.
Notice how a revision that changes the passive to an active construction also shifts the emphasis to apical meristem: "The removal of the apical meristem stimulated the formation of tubercles.
Foliage leaves develop in spiral arrangement in a rapid series of 5-6 plastochrones before the apical meristem of the short shoot becomes reproductive (Figs.
Around 15 days after germination, these spatulate gametophytes organized an apical meristem by longitudinal divisions in the apex (Fig.
Production of axillary buds in apical plagiotropic shoot is better than sub apical and thicker parts of plagiotropic stems due to high regeneration rate in apical meristem.
In Arthromeris himalayensis the establishment of an apical meristem was much delayed and the prothalli usually developed hairs on the margin and surfaces.
adusta nymph was found in a burrow in the apical meristem in each of the second and last experiments (Figs.
During germination the stem axis below the apical meristem does not elongate and therefore there is no epicotyl as stated by Rao (1971).
During the vegetative phase, the apical meristem of each of these axes generates leaves and shoots and, following floral induction, the terminal inflorescence (tin).
The infestation initially attacked the apical meristem region of newly transplanted papaya, but was later observed in aggregated clusters on most of the younger leaves, on or near leaf veins, with more than twice as many specimens on underside as upperside of leaves.
Epicotyl Axis of the embryonic plant above the cotyledon, terminating in the apical meristem, sometimes bearing scale leaves.