Lateral roots develop from primordia originated by the division of

Options

A. pericycle cells lying opposite to protoxylem points
B. pericycle cell lying between two protoxylem points
C. endodermal cells lying between two protoxylem points
D. endodermal cells lying opposite to protoxylem points

Answer

**Step-by-Step Solution:**

1. **Understanding Lateral Roots**: Lateral roots are small roots that branch off from the main root. They play a crucial role in increasing the root surface area, which enhances the plant's ability to absorb water and nutrients from the soil.

2. **Origin of Lateral Roots**: Lateral roots develop from specific regions in the root structure. The cells responsible for the formation of lateral roots are located in a layer called the pericycle.

3. **Role of Pericycle**: The pericycle is a layer of cells that surrounds the central vascular system of the root. It is situated between the endodermis and the phloem.

4. **Cell Division in Pericycle**: The formation of lateral roots begins when the cells in the pericycle undergo division. This division leads to the formation of additional cell layers.

5. **Formation of Lateral Roots**: As the pericycle cells divide, they push outward, creating new structures that develop into lateral roots. This process is essential for the growth of secondary roots.

6. **Evaluating the Options**:
- **Option 1**: Pericycle lying opposite to the protozylum points.
- **Option 2**: Pericycle cell lying between two protozylum points.
- **Option 3**: Endodermal cells lying between two protozylum points.
- **Option 4**: Endodermal cells lying opposite to the protozylum points.

The correct answer is **Option 2**: Pericycle cell lying between two protozylum points, as this is where the lateral roots originate from.

7. **Conclusion**: Lateral roots develop from the division of pericycle cells located between the protozylum points, which allows for the growth of additional root structures.

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