Indian phytopathologist, mycologist and microbiologist.
Mandayam Jeersannidhi Thirumalachar (22 September 1914 – 21 April 1999) was an Indian mycologist, microbiologist, plant pathologist and the co-founder of Jeersannidhi-Anderson Institute, California. He was the head of R&D at Hindustan Antibiotics Limited and a professor at Banaras Hindu University as well as the Central College of Bangalore. He was known for the development of antifungal antibiotics such as Hamycin, Dermostatin, Aureofungin, MYc-4 and Tetraenenin and was an elected fellow of the Indian National Science Academy. The Council of Scientific and Industrial Research, the apex agency