This research examined the chemical compounds produced by beneficial fungi that live inside pine tree roots. These fungi help trees survive in harsh environments by improving their nutrient uptake and stress resistance. The study identified over 200 different compounds that these fungi produce, many of which may help protect and nourish the host tree. Impacts on everyday life: – Helps understand how trees naturally survive environmental stress – Could lead to development of new natural fertilizers or plant protection products – Provides insights for improving forest health and timber production – May inspire new approaches for sustainable agriculture – Could identify new beneficial compounds for human applications