Mycelium in Albugo is

Options

A. Intracellular
B. Intercellular
C. Surface of host
D. Surface of flower.

Answer

### Step-by-Step Solution:

1. **Understanding Albugo**:
- Albugo is a genus that belongs to the class Oomycetes and is known to be an obligate parasite. It primarily affects plants, particularly crucifers like mustard, cabbage, and radish, causing a disease known as white rust disease.

2. **Characteristics of Albugo**:
- Albugo has more than 25 species and is part of the family Albugenaceae. The mycelium of Albugo is characterized by its structure and growth patterns.

3. **Mycelium Structure**:
- The mycelium (or hyphae) of Albugo is described as intercellular, meaning it grows between the cells of the host plant rather than within them.
- It is also aseptate, which indicates that the hyphae do not have septa (cross walls) dividing them into compartments.
- Additionally, the mycelium is profusely branched, meaning it has many branches.

4. **Evaluating the Options**:
- The question provides four options regarding the nature of mycelium in Albugo:
1. Intracellular
2. Intercellular
3. Surface of the host
4. Surface of a flower
- Based on the characteristics discussed, the mycelium of Albugo is intercellular, as it grows between the cells of the host plant.

5. **Conclusion**:
- Therefore, the correct answer to the question "Mycelium in Albugo is" is **intercellular**.