Gas chromatography–mass spectrometry (GC–MS) analysis of P. terrestris extract revealed
that forty-one compounds were present in metabolites containing mainly N-amino-3hydroxy-6-meth oxyphthalimide (32% of the total metabolites) and 5H-dibenz [B, F] azepine (7%). Treatment with P. terrestris extract also caused morphological changes and reduced expression of the genes involved in mycelial growth and virulence. Treatment also induced defense-related genes in detached Arabidopsis leaves that were inoculated with the pathogens.