Which of the following statement is wrong in respect to Puccinia graminis ?

Options

A. It is fungal parasite of wheat
B. It produces uredospores and teleutospores on stem and foliage
C. Teleutospores can re-infect wheat plants
D. Uredospores can infect wheat plant.

Answer

To determine which statement is wrong in respect to Puccinia graminis, we will analyze each of the provided statements one by one.

### Step-by-Step Solution:

1. **Identify the Organism**: Puccinia graminis is a fungal parasite that primarily affects wheat plants. It is known to cause black rust in wheat.

**Hint**: Remember that Puccinia graminis is a type of fungus that specifically targets wheat.

2. **Analyze the Statements**:
- **Statement 1**: "It is a fungal parasite of wheat."
- This statement is correct. Puccinia graminis is indeed a fungal parasite of wheat.

- **Statement 2**: "It produces uredospores and teliospores in stem and foliage."
- This statement is also correct. Puccinia graminis produces uredospores and teliospores on the wheat plant.

- **Statement 3**: "Teliospores can reinfect wheat plants."
- This statement is incorrect. Teliospores do not reinfect wheat plants; instead, they germinate to produce basidia, which is a different stage in the life cycle of the fungus.

- **Statement 4**: "Uredospores can infect wheat plants."
- This statement is correct. Uredospores are capable of infecting wheat plants.

3. **Conclusion**: The wrong statement among the options provided is that "teliospores can reinfect wheat plants." This is incorrect because teliospores do not reinfect; they contribute to the life cycle of the fungus by producing basidia.

### Final Answer:
The wrong statement in respect to Puccinia graminis is: "Teliospores can reinfect wheat plants."

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