Cyclosporin A' used as an immuno suppressive agent in organ-transplant patient, is produced by

Options

A. Trichoderma polysporum
B. Monascus purpureus
C. Streptococcus
D. Aspergillus niger

Answer

To answer the question regarding the production of Cyclosporin A, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Cyclosporin A**:
- Cyclosporin A is an immunosuppressive agent commonly used in organ transplant patients to prevent the immune system from rejecting the transplanted organ.

2. **Identifying the Source**:
- It is important to know that Cyclosporin A is not synthetically produced; it is derived from a natural source.

3. **Researching the Organism**:
- Cyclosporin A is produced by a specific type of fungus. The organism responsible for its production is crucial to identify.

4. **Identifying the Correct Fungus**:
- Among the options provided, the correct fungus that produces Cyclosporin A is **Trichoderma polysporum**.

5. **Conclusion**:
- Therefore, the answer to the question is that Cyclosporin A is produced by **Trichoderma polysporum**.

### Final Answer:
Cyclosporin A is produced by **Trichoderma polysporum**.

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