Production of Indole acetic acid (IAA) by earthworm borne fungi were studied in two different media (Asthana Hawker’s medium A and Asthana Hawker’s medium A with Tryptophan in place of potassium nitrate). B. terricola, C. cucurbitarum, G. roseum, S. tessarthra, U. botrytis, and V. chlamydosporum were produced IAA in the absence of precursor. No correlation could be observed between the IAA production and vegetative growth.
