The term 'Black mould' indicates the presence of

Options

A. black coloured hyphae in Rhizopus
B. black coloured pigments in hyphae
C. black pin head like structures present on the mycuelium
D. black coloured rhizoidal hyphae

Answer

To answer the question "The term 'Black mould' indicates the presence of," we can follow these steps:

### Step-by-Step Solution:

1. **Define Black Mould**:
- Black mould refers to a specific type of fungus that is commonly found in damp or humid environments. It is scientifically known as *Stachybotrys chartarum*.

2. **Identify Characteristics**:
- Black mould is characterized by its black or dark green color and often appears in a fuzzy or slimy texture. It typically grows on materials that are rich in cellulose, such as wood, paper, and drywall.

3. **Understand Its Harmfulness**:
- This type of mould is known to produce mycotoxins, which are toxic compounds that can lead to various health issues, including respiratory problems, allergic reactions, and other serious illnesses.

4. **Recognize Its Structure**:
- Black mould has a distinct structure, often described as having pinhead-like structures on its mycelium. These structures are known as conidia, which are spores that help in the reproduction of the fungus.

5. **Conclusion**:
- Based on the characteristics and structure of black mould, we can conclude that the term 'Black mould' indicates the presence of black pinhead-like structures on mycelium.

### Final Answer:
The term 'Black mould' indicates the presence of black pinhead-like structures on mycelium.

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