apical meristem

apical meristem
A region of the tip of each shoot and root of a plant in which cell division is continually occurring to produce new stem and root tissue, respectively. Two regions are visible in the apical meristem: An outer 1-4-cell layered region (the tunica), where cell divisions are anticlinal; and below the tunica, (ii) the corpus, where the cells divide in all directions, and increase in volume.

Glossary of Biotechnology for Food and Agriculture . 2015.

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  • apical meristem — noun : a meristem located at the apex of a root or shoot and responsible for increase in length of the organ compare intercalary meristem, lateral meristem * * * meristem at the apex of a root or shoot. * * * apical meristem noun (botany) A group …   Useful english dictionary

  • apical meristem — viršūninė meristema statusas T sritis augalininkystė apibrėžtis Meristeminės šaknies ir ūglio viršūnės ląstelės. atitikmenys: angl. apical meristem rus. апикальная меристема ryšiai: sinonimas – apikalinė meristema …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas

  • apical meristem — meristem at the apex of a root or shoot. * * * …   Universalium

  • apical meristem — The meristem at the tips of stems and roots. Composed of undifferentiated cells, many of which divide to add to the plant body but the central mass (the quiescent centre) remains inert and only becomes active if the meristem is damaged. Also… …   Dictionary of molecular biology

  • apical meristem — noun Date: circa 1934 a meristem at the apex of a root or shoot that is responsible for increase in length …   New Collegiate Dictionary

  • apical meristem —   Zone of actively dividing but as yet undifferentiated tissue at a shoot or root apex …   Expanded glossary of Cycad terms

  • Meristem — Tunica Corpus model of the apical meristem (growing tip). The epidermal (L1) and subepidermal (L2) layers form the outer layers called the tunica. The inner L3 layer is called the corpus. Cells in the L1 and L2 layers divide in a sideways fashion …   Wikipedia

  • meristem tip — An explant comprising the meristem (meristematic dome) and usually one pair of leaf primordia. Also refers to explants originating from apical meristem tip or lateral or axillary meristem tip …   Glossary of Biotechnology

  • apical cell — A meristematic initial in the apical meristem of shoots or roots of plants …   Glossary of Biotechnology

  • meristem culture — noun The aseptic culture on a suitable medium of excised shoot apical meristems (also shoot tip culture) • • • Main Entry: ↑meristem …   Useful english dictionary

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