collenchyma

(noun)

a supporting ground tissue just under the surface of various leaf structures formed before vascular differentiation

Related Terms

  • tracheid
  • sclerenchyma
  • stoma
  • xylem
  • sclereid
  • parenchyma
  • pith
  • lignin
  • phloem
  • trichome
  • cortex

Examples of collenchyma in the following topics:

  • Stem Anatomy

    • The stem and other plant organs are primarily made from three simple cell types: parenchyma, collenchyma, and sclerenchyma cells.
    • Collenchyma cells are elongated cells with unevenly-thickened walls .
    • The "strings" of a celery stalk are an example of collenchyma cells.
    • Sclerenchyma cells also provide support to the plant, but unlike collenchyma cells, many of them are dead at maturity.
    • Collenchyma cell walls are uneven in thickness, as seen in this light micrograph.
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