root meristem

root meristem
meristema de la raíz, meristema radical.

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  • root cap —   Parenchymatous layer of cells produced by the root meristem and covering it with a protective layer.   See also columella …   Expanded glossary of Cycad terms

  • Root hairs — Root hair cells, the rhizoids of many vascular plants, are tubular outgrowths of trichoblasts, the hair forming cells on the epidermis of a plant root. That is, root hair cells are lateral extensions of a single cell and only rarely branched.… …   Wikipedia

  • 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

  • Root — This article is about the part of a plant. For other uses, see Root (disambiguation). Primary and secondary roots in a cotton plant In vascular plants, the root is the organ of a plant that typically lies below the surface of the soil. This is… …   Wikipedia

  • root — root1 rootlike, adj. /rooht, root/, n. 1. a part of the body of a plant that develops, typically, from the radicle and grows downward into the soil, anchoring the plant and absorbing nutriment and moisture. 2. a similar organ developed from some… …   Universalium

  • Root — /rooht/, n. 1. Elihu /el euh hyooh /, 1845 1937, U.S. lawyer and statesman: Nobel peace prize 1912. 2. John Wellborn /wel beuhrn/, 1851 91, U.S. architect. * * * In botany, the underground anchoring part of a plant. It grows downward in response… …   Universalium

  • Root nodule — Cross section though a soybean (Glycine max Essex ) root nodule. The bacterium, Bradyrhizobium japonicum, colonizes the roots and establishes a nitrogen fixing symbiosis. This high magnification image shows part of a cell with single bacteroids… …   Wikipedia

  • root cap — noun thimble shaped mass of cells covering and protecting the growing tip of a root • Hypernyms: ↑plant organ • Part Holonyms: ↑root * * * noun : a protective cap or thimble shaped mass of parenchyma cells usually irregularly arranged that covers …   Useful english dictionary

  • meristem — /mer euh stem /, n. Bot. embryonic tissue in plants; undifferentiated, growing, actively dividing cells. [1870 75; < Gk merist(ós) divided, distributed (equiv. to *merid , s. of merízein to divide into parts (deriv. of méris part, share) + tos v …   Universalium

  • root apex — The apical meristem of a root; very similar to the shoot apical meristem in that it forms the three meristematic areas: the protoderm (develops into the epidermis); the procambium (the stele); and the growth meristem (the cortex) …   Glossary of Biotechnology

  • root cap — Tissue found at the apex of roots, overlying the root apical meristem and protecting it from friction as the root grows through the soil. Secretes a glycoprotein mucilage as a lubricant …   Dictionary of molecular biology