Anatomical Differences between Dicot Root and Monocot Root

Anatomical Differences between Dicot Root and Monocot Root

Anatomical Differences between Dicot root and Monocot root

Dicot root

  • A number of xylem or phloem bundles usually vary from 2-6.
  • The medulla is small and inconspicuous.
  • The xylem cavity is polygonal.
  • Xylem tissue lacks bast fiber.
  • Pericycle may give rise to cambium and cork cambium. The pericycle gives rise to lateral roots, cork cambium, and the part of the vascular cambium.
  • Secondary growth occurs.
  • Cortex is comparatively narrow.
  • Older root has a covering of cork.
  • Passage cells are generally absent in endodermis.
  • the xylem and phloem are limited in numbers. The number of xylem and phloem bundles varies from 2-5 or sometimes 8.
  • Pith is either absent or very small.
  • Cambium appears as a secondary meristem at the time of secondary growth.

Dicot Root and Monocot Root 1

Monocot root

  • A number of xylem or phloem bundles is usually more than six.
  • The medulla is large and clear.
  • The xylem cavity is round.
  • Bast fiber is absent in xylem tissue.
  • Pericycle never rives rise to meristematic tissue. The pericycle present only produces the lateral roots.
  • Secondary growth does not occur.
  • Cortex is very wide.
  • Older root has a covering of exodermis.
  • Thin-walled passage cells generally occur in the endodermis opposite the protoxylem point.
  • the xylem and phloem are numerous in numbers. Xylem and phloem bundles are numerous and are 8 or more in number.
  • A well-developed pith is present in the center of the root.
  • Cambium is altogether absent.

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