meristem

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Related to lateral meristem: ground meristem, vascular cambium

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.
References in periodicals archive ?
Woody plants also have two kinds of lateral meristems: the vascular cambium and cork cambium.
Although apical meristems and lateral meristems account for most growth, other pockets of meristematic activity sometimes persist for a long time.
We predicted that overcompensation following shoot apex removal in the absence of neighbors (cost of apical dominance) should also be greater under higher nutrient levels since the growth of lateral meristems should be limited by nutrient level once apical dominance is disrupted.
Of the apterous aphids found on the umbels, 80.87% were located on umbels produced by apical meristems, and 19.13% were present on umbels produced by lateral meristems (Fig.
The flexible life history responses shown by Ceanothus herbaceous in response to fire and herbivores suggests tolerance of both forms of damage (Rosenthal and Kotanen, 1994), with fire tolerance conveyed by protected belowground meristems and herbivory tolerance conveyed by aboveground lateral meristems. Woody plants inhabiting fire-dominated ecosystems such as grasslands may commonly be subject to damage from fire and multiple herbivores.
The elusive nature of the lateral meristems in the monocotyledons has been posing problem with the application of relevant terminology.
However, in most Cyperaceae, the IM produces lateral meristems that may behave either wholly as SMs and, consequently, do not produce other branches and end immediately in a spikelet (Fig.

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