As all BCuse it chare the nucleus from companion cells and all the instructions to sieve tube cells are given by companion cells..

Why Sieve Tube is called living syncyte despite being enucleated?

Enucleated Sieve Tube
- Sieve tubes in plants are specialized cells that are responsible for transporting sugars and other nutrients throughout the plant.
- These cells are enucleated, meaning they lack a nucleus. This allows for more efficient nutrient transport as the absence of a nucleus creates more space for the movement of nutrients.

Living Syncyte
- Even though sieve tubes are enucleated, they are still considered living syncytes.
- Syncytes are cells that are formed from the fusion of multiple cells, creating a continuous cytoplasm without distinct cell boundaries.
- Sieve tubes are formed from the fusion of sieve tube elements, companion cells, and other cells, creating a continuous living syncytial network for efficient nutrient transport.

Functions of Sieve Tubes
- Sieve tubes are responsible for the translocation of sugars and other organic nutrients throughout the plant.
- They form a vital part of the plant's vascular system, ensuring that nutrients produced in the leaves through photosynthesis are transported to other parts of the plant for growth and development.

Conclusion
- Despite being enucleated, sieve tubes are considered living syncytes due to their continuous cytoplasmic network formed from the fusion of multiple cells.
- This unique structure allows for efficient nutrient transport in plants, highlighting the adaptability and complexity of plant vascular systems.

Because it has it's own cytoplasm