Intercalary meristems

Definition

Intercalary meristems are regions of active cell division located at the bases of leaves or internodes in certain plants. They contribute to elongation and regeneration of plant parts, particularly in grasses and other monocots.

5 Must Know Facts For Your Next Test

1. Intercalary meristems are found primarily in monocots such as grasses.
2. They allow for rapid growth and regeneration after damage, such as grazing or mowing.
3. Unlike apical meristems, intercalary meristems are not found at the tips of roots or shoots.
4. These meristems enable continuous growth at multiple points along the stem.
5. Intercalary meristematic activity is crucial for the survival and adaptability of many grass species.

Review Questions

• Where are intercalary meristems typically located?
• How do intercalary meristems contribute to a plant's ability to recover from damage?
• What distinguishes intercalary meristems from apical meristems?

Related terms

Apical Meristem: Regions of actively dividing cells located at the tips of roots and shoots, responsible for primary growth.

Lateral Meristem: Meristematic tissue that contributes to secondary growth by increasing the girth of stems and roots.

Monocots: A group of flowering plants characterized by having one cotyledon, parallel leaf venation, and scattered vascular bundles.