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meristemenUK
mer·i·stem M0230100 (mĕr′ĭ-stĕm′)n. The undifferentiated plant tissue from which new cells are formed, as that at the tip of a stem or root. [Greek meristos, divided (from merizein, to divide, from meris, division; see (s)mer- in Indo-European roots) + -em (as in xylem phloem).] mer′i·ste·mat′ic (-stə-măt′ĭk) adj.mer′i·ste·mat′i·cal·ly adv.meristem (ˈmɛrɪˌstɛm) n (Botany) a plant tissue responsible for growth, whose cells divide and differentiate to form the tissues and organs of the plant. Meristems occur within the stem (see cambium) and leaves and at the tips of stems and roots[C19: from Greek meristos divided, from merizein to divide, from meris portion] meristematic adjmer•i•stem (ˈmɛr əˌstɛm) n. embryonic tissue in plants; undifferentiated, growing, actively dividing cells. [1870–75; < Greek merist(ós) divided, distributed + -em < Greek -ēma] mer`i•ste•mat′ic, adj. mer·i·stem (mĕr′ĭ-stĕm′) Plant tissue whose cells actively divide to produce new tissues that cause the plant to grow. The cells of the meristem are not specialized but can become specialized to form the tissues of roots, leaves, and other plant parts. The growing tips of roots and stems and the tissue layer known as cambium are part of a plant's meristem.meristemPlant tissue consisting of rapidly dividing cells.ThesaurusNoun | 1. | meristem - undifferentiated tissue from which new cells are formed, as at the tip of a stem or rootplant tissue - the tissue of a plant | TranslationsmeristemenUK
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.meristemenUK Related to meristem: lateral meristem, primary meristemWords related to meristemnoun undifferentiated tissue from which new cells are formed, as at the tip of a stem or rootRelated Words |