Introduction:
In plant cells, the cell wall is a rigid structure that surrounds the plasma membrane and provides structural support and protection to the cell. However, there is a specific part of the plant cell where the cell wall is absent during common sharing between two cells. This part is known as the plasmodesmata.

Plasmodesmata:
- Plasmodesmata are microscopic channels that connect plant cells together, allowing for direct communication and transport of molecules between them.
- They are narrow, tubular structures that traverse the cell wall and connect the cytoplasm of adjacent cells.
- Plasmodesmata are lined with the plasma membrane and contain a strand of cytoplasm, known as the desmotubule, which acts as a conduit for the movement of various substances.
- Unlike the cell wall, the cell membrane and cytoplasm continue uninterrupted through the plasmodesmata, connecting the two cells.

Function of Plasmodesmata:
- Plasmodesmata play a crucial role in intercellular communication and transport within plant tissues.
- They allow for the exchange of water, ions, small molecules, proteins, and even some larger macromolecules between neighboring cells.
- This direct communication pathway enables coordination and signaling between cells, facilitating growth, development, and responses to environmental stimuli.
- Plasmodesmata also contribute to the transport of nutrients and metabolites from cell to cell, ensuring the proper functioning of plant tissues and organs.

Importance of Cell Wall Absence:
- The absence of the cell wall at the plasmodesmata is vital for the direct connection and transport between plant cells.
- If the cell wall were present at the plasmodesmata, it would hinder the movement of molecules and restrict the communication between cells.
- The absence of the cell wall allows for the free flow of cytoplasm and facilitates the exchange of substances, ensuring the efficient functioning of plant tissues.

Conclusion:
In plant cells, the plasmodesmata are the specific parts where the cell wall is absent during common sharing between two cells. Plasmodesmata play a critical role in intercellular communication and transport, allowing for the exchange of various substances between adjacent cells. The absence of the cell wall at the plasmodesmata is essential for the efficient functioning of plant tissues and organs.

Plasmodesmata