Meristem

meristem
undifferentiated tissue of plants composed of cells actively dividing
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
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Meristematic cells are analogous in function to stem cells in animals, are incompletely or not at all differentiated, and are capable of continued cellular division (youthful). Furthermore, the cells are small and protoplast fills the cell completely.
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Meristematic tissue is located in
the apical meristems at the growing points of roots and stems.
the secondary meristems (lateral buds) at the nodes of stems (where branching occurs) [View], and in some plants, ...
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meristematic tissue: the growth tissue; the location of most cell division of vascular plants.
mesoderm: one of three germ layers that develops to become the muscles and other internal organs.
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meristem -- Group of undifferentiated cells from which new tissues are produced. Most plants have apical meristems which give rise to the primary tissues of plants, and some have secondary meristems which add wood or bark.
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meristem
(mare-eh-stem) [Gk. merizein, to divide]
Plant tissue that remains embryonic as long as the plant lives, allowing for indeterminate growth.
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meristematic tissue Embryonic tissue located at the tips of stems and roots and occasionally along their entire length; can divide to produce new cells; one of the four main tissue systems in plants. PICTURE ...
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meristem The tissue or zone from which new cells are produced by cell division.
meristematic tissue Within some seaweeds, specific tissue sites where most cell division for growth occurs.
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meristem. The collection of cells at the growing point of a plant that are capable of cell division.
metamorphosis. The change in form that takes place as insects grow from immatures to adults.
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meristem
A region of a plant in which active cell division occurs, the cells of the meristem being undifferentiated into a specialized form. Meristematic tissues occur at the root and shoot tips giving growth in length.
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After the growth period, when the meristems are dormant, the leaves are sources, and storage organs are sinks. Developing seed-bearing organs (such as fruit) are always sinks.
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Plants, however, have an apical meristem located at the tip of every root and stem that remains totipotent. They have other meristems that are also totipotent.
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