Piriformospora is a fungal genus of the order Sebacinales. It is a monotypic genus, containing the single endophytic root-colonising species Piriformospora indica, discovered from orchid plants in the Thar desert in Rajasthan, India by Prof. Ajit Verma and group, School of Life Sciences, Jawaharlal Nehru University, New Delhi. The fungus has typical pear-shaped chlamydospores, and thus, named as P. indica . Unlike mycorrhizal fungi, which cannot be cultured axenically, P. indica can be easily grown on various substrates. It has been found to promote plant growth during its mutualistic symbiotic relationship with a wide variety of plants. Experiments have shown that P. indica increases the resistance of colonized plants against fungal pathogens. It has also been found in experiments with ba