hypocotyl

(noun)

in plants with seeds, the portion of the embryo or seedling between the root and cotyledons

Related Terms

  • plumule
  • coleoptile
  • radicle
  • testa

Examples of hypocotyl in the following topics:

  • Development of the Seed

    • The embryonic axis consists of three parts: the plumule, the radicle, and the hypocotyl.
    • The portion of the embryo between the cotyledon attachment point and the radicle is known as the hypocotyl.
    • Upon exposure to light, the hypocotyl hook straightens out, the young foliage leaves face the sun and expand, and the epicotyl continues to elongate.
    • Both monocot and dicot embryos have a plumule that forms the leaves, a hypocotyl that forms the stem, and a radicle that forms the root.
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