How many of the following fungi belong to Ascomycetes ?
Ustailago, Aspergillus , Neurospora , Trichoderma , Albugo , Claviceps , Saccharomyces , Colletotrichum

Options

A. Two
B. Four
C. Five
D. Three

Answer

To determine how many of the listed fungi belong to the Ascomycetes class, we will categorize each fungus based on its classification.

1. **Ustilago**: This fungus is classified under Basidiomycetes.
- **Hint**: Remember that Ustilago is known as a smut fungus, which typically falls under Basidiomycetes.

2. **Aspergillus**: This fungus belongs to Ascomycetes.
- **Hint**: Aspergillus is a well-known genus of fungi used in fermentation and is classified as an ascomycete.

3. **Neurospora**: This fungus is also classified under Ascomycetes.
- **Hint**: Neurospora is often used in genetic studies and is a model organism in biology, belonging to Ascomycetes.

4. **Trichoderma**: This fungus is classified under Deuteromycetes (also known as Fungi Imperfecti).
- **Hint**: Trichoderma is known for its role in biocontrol and is not classified as an ascomycete.

5. **Albugo**: This fungus is classified under Phycomycetes.
- **Hint**: Albugo is a genus of fungi that are plant pathogens and belong to the group of Phycomycetes.

6. **Claviceps**: This fungus belongs to Ascomycetes.
- **Hint**: Claviceps is known for producing ergot alkaloids and is classified as an ascomycete.

7. **Saccharomyces**: This fungus is classified under Ascomycetes.
- **Hint**: Saccharomyces cerevisiae is commonly known as baker's yeast and is a well-known ascomycete.

8. **Colletotrichum**: This fungus also belongs to Ascomycetes.
- **Hint**: Colletotrichum is known for causing anthracnose disease in plants and is classified as an ascomycete.

Now, let's summarize the classifications:

- Ustilago: Basidiomycetes
- Aspergillus: Ascomycetes
- Neurospora: Ascomycetes
- Trichoderma: Deuteromycetes
- Albugo: Phycomycetes
- Claviceps: Ascomycetes
- Saccharomyces: Ascomycetes
- Colletotrichum: Ascomycetes

**Total Ascomycetes**: Aspergillus, Neurospora, Claviceps, Saccharomyces, Colletotrichum = 5 fungi belong to Ascomycetes.

**Final Answer**: 5 fungi belong to Ascomycetes.