Conidia are sickle-shaped in

Options

A. Penicillium
B. Aspergillus
C. Colletorichum
D. Alternaria

Answer

To solve the question "Conidia are sickle-shaped in which of the following fungi?", we will analyze the options provided and determine which fungus produces sickle-shaped conidia.

### Step-by-Step Solution:

1. **Understand Conidia**: Conidia are asexual spores produced by fungi. They play a crucial role in the reproduction and dispersal of fungal species.

2. **Review the Options**: We have four options to consider:
- Option 1: Penicillium
- Option 2: Aspergillus
- Option 3: Colletotrichum
- Option 4: Alternaria

3. **Identify the Shape of Conidia**: The question specifically asks for the shape of conidia. We need to identify which of the listed fungi produces sickle-shaped conidia.

4. **Analyze Each Option**:
- **Penicillium**: This fungus typically produces conidia that are more cylindrical or flask-shaped.
- **Aspergillus**: The conidia of Aspergillus are usually round or globose.
- **Colletotrichum**: This fungus is known for producing sickle-shaped conidia.
- **Alternaria**: The conidia of Alternaria are typically elongated and may have a more irregular shape.

5. **Conclusion**: Based on the analysis, we find that the sickle-shaped conidia are characteristic of **Colletotrichum**.

### Final Answer:
The correct answer is **Option 3: Colletotrichum**.

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