Which of the following statement is not true about somatic embryogenesis

Options

A. A somatic embryo develops from a somatic cell
B. The pattern of development of a somatic embryo is comparable to that of a zygotic embryo
C. Somatic embryo can develop from microspores
D. Somatic embryo is induced usually by an auxin such as 2, 4-D

Answer

To determine which statement is not true about somatic embryogenesis, we will analyze each of the provided statements step by step.

### Step-by-Step Solution:

1. **Understanding Somatic Embryogenesis**:
- Somatic embryogenesis is an artificial process where a plant embryo is developed from a single somatic cell under in vitro conditions. This process is significant in plant tissue culture and biotechnology.

2. **Analyzing the Statements**:
- **Statement 1**: "A somatic embryo develops from a somatic cell."
- This statement is true. Somatic embryos are indeed derived from somatic cells, which are non-reproductive cells.

- **Statement 2**: "The pattern of development of a somatic embryo is comparable to that of a zygotic embryo."
- This statement is also true. The development of somatic embryos follows a pattern similar to that of zygotic embryos, which are formed from fertilized eggs.

- **Statement 3**: "Somatic embryos can develop from microspores."
- This statement is not true. Somatic embryos originate from somatic cells, not from microspores, which are reproductive structures. This makes this statement incorrect.

- **Statement 4**: "Somatic embryos are induced usually by an auxin such as 2,4-D."
- This statement is true. Auxins like 2,4-D are commonly used to induce somatic embryogenesis in plant tissue culture.

3. **Conclusion**:
- The statement that is not true about somatic embryogenesis is **Statement 3**, which claims that somatic embryos can develop from microspores.

### Final Answer:
The statement that is not true about somatic embryogenesis is: **"Somatic embryos can develop from microspores."**

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