Question: 160: Identify the microorganism which is responsible for the production of an immunosuppressive molecule cyclosporin A :
(1) Aspergillus niger
(2) Streptococcus cerevisiae
(3) Trichoderma polysporum
(4) Clostridium butylicum
Answer: Option (3)
Explanation:
Cyclosporin A is an immunosuppressive drug widely used in organ transplantation.
It helps in preventing rejection of transplanted organs by suppressing the immune response.
Cyclosporin A is produced by the fungus Trichoderma polysporum.
Aspergillus niger is mainly used for the commercial production of citric acid.
Streptococcus cerevisiae is not involved in cyclosporin production.
Clostridium butylicum is used in the production of butyric acid.
Therefore, the correct answer is Trichoderma polysporum.