/keuh lip"treuh jeuhn/, n. Bot.
the histogen layer that develops into the root cap.
[1880-85; calyptro- (comb. form of CALYPTRA) + -GEN]

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Universalium. 2010.

Look at other dictionaries:

  • calyptrogen — [kə lip′trə jən] n. [< CALYPTRA + GEN] the layer of actively dividing cells at the tip of a root in many plants, as grasses, that produces the root cap …   English World dictionary

  • calyptrogen — ca·lyp·tro·gen …   English syllables

  • calyptrogen — /kəˈlɪptrədʒən/ (say kuh liptruhjuhn) noun the histogen layer which develops into the root cap of a plant. {Greek kalyptr(a) veil + o + gen} …   Australian English dictionary

  • calyptrogen — kəˈliptrəjən, ˌjen noun ( s) Etymology: International Scientific Vocabulary calyptro + gen : the layer of cells from which the rootcap originates …   Useful english dictionary

  • Wurzel — Wurzel, eines der drei Grundorgane der Cormophyten; wächst normalerweise unterirdisch; ist meist achsenförmig; hat keine Blätter; dient der Verankerung der Pflanze im Boden und ihrer Versorgung mit Wasser und Nährsalzen, häufig auch der… …   Deutsch wörterbuch der biologie

  • 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

  • angiosperm — /an jee euh sperrm /, n. Bot. a plant having its seeds enclosed in an ovary; a flowering plant. Cf. gymnosperm. [ANGIO + SPERM] * * * ▪ plant Introduction       any member of the more than 300,000 species of flowering plants (division Anthophyta) …   Universalium

  • plant development — Introduction       a multiphasic process in which two distinct forms succeed each other in alternating generations. One form, created by the union of sexual cells (gametes (gamete)), contains two sets of similar chromosomes (diploid). At sexual… …   Universalium

  • Kalyptrogen — (Calyptrogen) ist eine Zone des Apikalmeristems des Wurzelscheitels. Aus dieser Zone gehen die Zellen der Wurzelhaube (Kalyptra oder Calyptra) hervor. Das Kalyptrogen ist aber nur bei bestimmten Pflanzen vorhanden (z. B. bei Gräsern). Andernfalls …   Deutsch Wikipedia

  • calyptri- — combining form or calyptro Etymology: New Latin calyptra : calyptra : hood : cap calyptriform calyptro …   Useful english dictionary

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