Immunosuppressive cyclosporin A is obtained from

Options

A. Aspergillus niger
B. Penicillium notatum
C. Monascus purpureus
D. Trichoderma polysporum

Answer

**Step-by-Step Solution:**

1. **Identify the Drug**: The question asks about cyclosporin A, which is an immunosuppressive drug commonly used in medical treatments.

2. **Understand the Source**: Cyclosporin A is derived from a biological organism. It is important to know that many drugs are obtained from natural sources, including fungi.

3. **Determine the Type of Organism**: Since cyclosporin A is obtained from a fungus, we need to identify the specific fungus that produces it.

4. **Identify the Specific Fungus**: The specific fungus that produces cyclosporin A is known as *Trichoderma polysporum*.

5. **Production Method**: Cyclosporin A is produced through a fermentation process by the fungus *Trichoderma polysporum*.

6. **Select the Correct Answer**: Based on the information provided, the correct answer to the question is that cyclosporin A is obtained from *Trichoderma polysporum*.

**Final Answer**: Cyclosporin A is obtained from *Trichoderma polysporum*.

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