The process of reducing secondary xylem exclusively from fascicular cabium in pterocarpus stem is

Options

A. redifferentiation
B. dedifferentiation
C. differentiation
D. degeneration

Answer

To answer the question regarding the process of reducing secondary xylem exclusively from fascicular cambium in Pterocarpus stem, we can break down the solution step by step:

### Step-by-Step Solution:

1. **Understanding the Terms**:
- Fascicular cambium is a type of cambium found within the vascular bundles of plants. It is responsible for the production of secondary xylem (wood) and secondary phloem (bark).
- Secondary xylem is produced during secondary growth, which increases the thickness of the plant stem.

2. **Identifying the Process**:
- The question asks for the process by which secondary xylem is formed from fascicular cambium. This involves the differentiation of cells from a primary meristem (fascicular cambium) into secondary xylem cells.

3. **Differentiation vs. Other Processes**:
- **Differentiation**: This is the process where unspecialized cells (meristematic cells) become specialized into mature cell types (like secondary xylem).
- **Re-differentiation**: This involves differentiated cells losing their specialization and then regaining it, which is not the case here.
- **De-differentiation**: This refers to differentiated cells regaining the ability to divide, which is also not applicable in this scenario.
- **Degeneration**: This implies a decline in function or structure, which does not relate to the formation of secondary xylem.

4. **Conclusion**:
- Since the process described in the question involves the transformation of fascicular cambium into secondary xylem, the correct answer is **differentiation**.

### Final Answer:
The process of reducing secondary xylem exclusively from fascicular cambium in Pterocarpus stem is **differentiation**.

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