White rust disease of mustard leaves is caused by a parasitic fungi called:

Options

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

Answer

To solve the question regarding the causative agent of white rust disease in mustard leaves, we can follow these steps:

### Step 1: Understand the Disease
White rust disease is a plant disease that affects mustard leaves. It is important to identify the pathogen responsible for this disease.

**Hint:** Research the symptoms and characteristics of white rust disease in mustard plants.

### Step 2: Identify the Pathogen
The question asks for the specific parasitic fungus that causes white rust disease. There are various fungi that affect plants, but we need to focus on those that are known to cause white rust.

**Hint:** Recall the names of fungi associated with plant diseases, particularly those that cause rust diseases.

### Step 3: Differentiate Between Fungi
In the video transcript, two fungi are mentioned: Paxinia and Albugo. Paxinia is known for causing leaf rust and common rust diseases, while Albugo is specifically mentioned in relation to white rust disease.

**Hint:** Compare the functions and diseases caused by different fungi to narrow down the correct one.

### Step 4: Confirm the Causative Agent
The transcript confirms that Albugo is the fungus responsible for white rust disease in mustard leaves. Therefore, the correct answer to the question is Albugo.

**Hint:** Ensure that you have a clear understanding of the relationship between specific fungi and the diseases they cause.

### Final Answer
The parasitic fungus that causes white rust disease of mustard leaves is **Albugo**.