Plastids found in roots of Taeniophyllum are

Options

A. Chromoplasts
B. Chloroplasts
C. Leucoplasts
D. (2) & (3)

Answer

To answer the question about the types of plastids found in the roots of Taeniophyllum, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Plastids**:
- Plastids are organelles found in plant cells that contain pigments. They play a crucial role in photosynthesis and storage of products.

2. **Identifying Taeniophyllum**:
- Taeniophyllum is a type of plant that belongs to the Orchidaceae family, commonly referred to as "ribbon roots." It is characterized by its unique structure.

3. **Characteristics of Taeniophyllum**:
- This plant is notable for having leafless stems and flat, green roots. The roots are adapted for photosynthesis, which is unusual for roots.

4. **Types of Plastids in Roots**:
- Generally, plant roots contain leukoplasts, which are colorless plastids involved in storage. However, in the case of Taeniophyllum, the green roots indicate the presence of chloroplasts as well, which are involved in photosynthesis.

5. **Conclusion**:
- Therefore, the roots of Taeniophyllum contain both chloroplasts (green plastids for photosynthesis) and leukoplasts (colorless plastids for storage).

6. **Final Answer**:
- The types of plastids found in the roots of Taeniophyllum are chloroplasts and leukoplasts. Thus, the correct answer is option D, which includes both types.