Lateral roots and vascular cambium originates due to the activity of which tissue in dicot root ?

Options

A. Endodermis
B. Pericycle
C. Casparian strip
D. Periderm

Answer

To determine which tissue in the dicot root is responsible for the origin of lateral roots and vascular cambium, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Structures**:
- In a dicot root, there are several tissues, including the endodermis, pericycle, casparian strip, and periderm. Each of these has specific functions.

2. **Identifying the Role of Pericycle**:
- The pericycle is a layer of tissue located just inside the endodermis. It is primarily composed of parenchyma cells, which are capable of cell division.

3. **Function of Pericycle in Root Development**:
- The pericycle is crucial for the formation of lateral roots. It has the ability to divide and form new roots that emerge from the main root.

4. **Vascular Cambium Formation**:
- The vascular cambium, which is responsible for secondary growth in roots and stems, also originates from the pericycle. This tissue contributes to the increase in thickness of the root by producing new vascular tissues.

5. **Conclusion**:
- Based on the above points, we can conclude that the lateral roots and vascular cambium in dicot roots originate due to the activity of the pericycle.

### Final Answer:
The correct answer is **Pericycle**.

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