Non-septate mycelium occurs in :-

Options

A. Phycomycetes
B. Ascomycetes
C. Basidiomycetes
D. Deuteromycetes

Answer

To answer the question "Non-septate mycelium occurs in:", we need to analyze the options provided: phycomycetes, escomycetes, basidomycetes, and deuteromycetes.

### Step-by-Step Solution:

1. **Understand Mycelium Types**:
- Mycelium can be classified into two main types: septate and non-septate (coenocytic).
- Septate mycelium has cross-walls (septa) that divide the hyphae into individual cells.
- Non-septate mycelium (coenocytic) lacks these cross-walls, resulting in a continuous cytoplasmic mass.

2. **Identify the Groups**:
- **Phycomycetes**: These are considered lower fungi and are characterized by the presence of non-septate (coenocytic) mycelium.
- **Escomycetes**: These belong to the higher fungi (Eumycota) and have septate mycelium.
- **Basidomycetes**: Also part of the Eumycota, these fungi have septate mycelium.
- **Deuteromycetes**: This group is characterized by the presence of septate mycelium as well.

3. **Conclusion**:
- Based on the characteristics of each group, the only group that is known for having non-septate mycelium is **Phycomycetes**.

### Final Answer:
Non-septate mycelium occurs in **Phycomycetes**.

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