Fungal filament system is known as mycelium. The pseudomycelium is formed in:

Options

A. Rhizopus
B. Alternaria
C. Penicillium
D. Saccharomyces

Explanation

To answer the question regarding where pseudomycelium is formed, we can follow these steps:

### Step 1: Understand the Definitions
- **Mycelium**: The fungal filament system, which is composed of a network of hyphae.
- **Pseudomycelium**: A structure that resembles mycelium but is formed by chains of budding yeast cells that remain attached.

### Step 2: Identify the Organisms
The question provides four options:
1. Rhizopus
2. Alternaria
3. Penicillium
4. Saccharomyces

### Step 3: Analyze Each Organism
- **Rhizopus**: A filamentous fungus that forms true mycelium.
- **Alternaria**: Another filamentous fungus that also forms true mycelium.
- **Penicillium**: Known for its filamentous structure and also forms true mycelium.
- **Saccharomyces**: A unicellular fungus (yeast) that reproduces by budding.

### Step 4: Determine Where Pseudomycelium Forms
- Since pseudomycelium is formed during the budding process in unicellular fungi, we need to identify which of the options is unicellular and reproduces by budding.
- **Saccharomyces** is the only option that fits this criterion, as it can form chains of cells that resemble mycelium when they do not separate completely after budding.

### Step 5: Conclusion
The correct answer is **Saccharomyces**, as it is the organism that forms pseudomycelium.

### Final Answer
Pseudomycelium is formed in **Saccharomyces**.

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