Where is meristem tissue found?

SouravAugust 22, 2024

Answer

Meristem tissue is found in specific regions of a plant where growth occurs. These areas are generally characterized by active cell division. The main locations where meristematic tissues are found include:

1. Apical Meristem:
   • Location: At the tips of roots and shoots.
   • Function: Responsible for primary growth, which results in the elongation of the plant. It is involved in the development of new leaves, stems, and roots.
2. Lateral Meristem:
   • Location: Along the sides of stems and roots.
   • Function: Responsible for secondary growth, which increases the thickness or girth of the plant. Key lateral meristems include:
     • Vascular Cambium: Produces new xylem and phloem tissues, contributing to the thickening of stems and roots.
     • Cork Cambium: Produces cork cells for the outer bark, providing protection and reducing water loss.
3. Intercalary Meristem:
   • Location: At the bases of leaves or internodes, particularly in grasses and other monocots.
   • Function: Allows for regrowth and elongation of stems and leaves, often following damage or removal. It contributes to the rapid growth of plant parts.
4. Shoot Apical Meristem (SAM):
   • Location: At the growing tips of shoots.
   • Function: Involved in the development of new leaves, stems, and floral organs. It plays a crucial role in the vertical growth of the plant.
5. Root Apical Meristem (RAM):
   • Location: At the growing tips of roots.
   • Function: Facilitates root elongation and the formation of new root tissues.

These meristematic regions are essential for the plant’s growth and development throughout its life cycle.