Multinucleate , aseptate mycelium with oospore as the sexual spore is character of :

Options

A. Albugo
B. Mucor
C. Rhizopus
D. Ustilago

Answer

To solve the question regarding which organism has a multinucleate, aseptate mycelium with oospore as the sexual spore, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Terms**:
- **Multinucleate**: This means that the organism has multiple nuclei within a single cell.
- **Aseptate Mycelium**: This refers to mycelium that does not have septa (cross walls) dividing the hyphae.
- **Oospore**: This is a type of sexual spore formed by the fusion of gametes.

2. **Identify the Organisms**:
- The options given are Albugo, Mucor, Rhizopus, Eustilago, and Ego. We need to analyze each of these in relation to the characteristics mentioned.

3. **Analyze Each Organism**:
- **Albugo**: Known for having multinucleate, aseptate mycelium and produces oospores as its sexual spores.
- **Mucor**: Generally has aseptate mycelium but does not produce oospores.
- **Rhizopus**: Similar to Mucor, it has aseptate mycelium but does not produce oospores.
- **Eustilago**: Belongs to Basidiomycetes and has septate hyphae, not fitting the criteria.
- **Ego**: Not a commonly recognized fungal organism in this context.

4. **Conclusion**:
- Based on the analysis, Albugo is the only organism that fits all the criteria: it has multinucleate, aseptate mycelium and produces oospores as its sexual spores.

5. **Final Answer**:
- The correct answer is **Albugo**.