What is Apical Meristem?

The apical meristem is a group of cells that can divide and grow a lot. Due to this growing property they are present at growing roots and shoot tips. The meristematic cells are generally small and nearly spherical, featuring dense cytoplasm and few vacuoles. The apical meristem goes through partial differentiation to give rise to primary meristems, which include the protoderm, ground meristem, and procambium.

Apical Meristem: Meaning and Function

The apical meristem is a group of cells that can divide and help in primary growth. These cells are found at the tips of growing roots and shoots. The apical meristems create the main parts of the plant and make the roots and shoots longer. The apical meristem is located at the root tip, shoot tip, and the tip of the leaves. The meristematic cell can transform into various cell types.

Meristem is the tissue found in the plant’s growth region. The term “apical” indicates that growth occurs at both the top and bottom of the plant. An intercalary meristem is situated between branches and a lateral meristem contributes to the plant’s width, particularly in woody plants.

Table of Content

  • What is Apical Meristem?
  • Where Apical Meristem Can be Found?
  • Structure of Apical Meristem
  • Types of Apical Meristem
  • Regulation of Apical Meristem
  • Functions of Apical Meristems

Similar Reads

What is Apical Meristem?

The apical meristem is a group of cells that can divide and grow a lot. Due to this growing property they are present at growing roots and shoot tips. The meristematic cells are generally small and nearly spherical, featuring dense cytoplasm and few vacuoles. The apical meristem goes through partial differentiation to give rise to primary meristems, which include the protoderm, ground meristem, and procambium....

Where Apical Meristem Can be Found?

The apical meristem is situated just below the root cap in the roots, consisting of a group of closely packed cells that have not yet specialized. These cells serve as the source for various cell structures required by the plant. An undifferentiated apical meristem cell continuously divides and gradually transforms into a specialized cell. The meristematic cells are generally small, nearly spherical, with dense cytoplasm and relatively fewer vacuoles....

Structure of Apical Meristem

The apical meristem is situated just below the root cap in the roots, consisting of a group of closely packed cells that have not yet specialized. These cells serve as the source for various cell structures required by the plant. An undifferentiated apical meristem cell continuously divides and gradually transforms into a specialized cell. The meristematic cells are generally small, nearly spherical, with dense cytoplasm and relatively fewer vacuoles....

Types of Apical Meristem

Several plants have two apical meristems: Root meristem and shoot meristem....

Regulation of Apical Meristem

The process of cell diversification in the apical meristem is intricate and controlled by several genes, which play an essential role in shaping and structuring plants. As the apical meristem grows, it gives rise to smaller meristem locations, eventually developing into branches of the stems and roots. The timing and quantity of these branching events are regulated by a series of genes in plants. The diverse expressions of these genes result in various plant forms, contributing to the millions of different species seen today. The root apical meristem is integral for root development, with deep and focused roots, like taproots in many weeds, or more dispersed and fibrous root systems, as seen in corn and bamboo....

Functions of Apical Meristems

The apical meristem, positioned just below the surface of the outermost branches and roots, continually undergoes division. Some cells divide to produce more meristematic cells, while others divide and specialize into structural or vascular cells. Most plants have two apical meristem locations....

Conclusion

The apical meristem is a crucial group of cells situated at the tips of growing roots and shoots in plants. Found in the tips of roots, shoots, and leaves, it’s one of three types of tissues capable of transforming into different cell types. This meristem plays a vital role in plant growth, shaping the main body structure, and promoting the extension of roots and shoots. In summary, the apical meristem is a key contributor to plant growth, differentiation, and adaptation to environmental conditions....

FAQs on Apical Meristem

1. What are the three Apical Meristems?...