Endophytic Fungi and Their Biomedical Significance

Endophytic fungi are symbiotic microorganisms that inhabit healthy plant tissues without causing any apparent harm or disease to their hosts. These fungi are widely distributed across diverse plant parts, including roots, stems, leaves, bark, flowers, fruits, and scales, demonstrating their ubiquitous presence and ecological importance. In recent years, endophytic fungi have gained significant attention as a promising and sustainable source of novel bioactive compounds with minimal toxicity. These metabolites exhibit a broad spectrum of therapeutic properties, such as immunosuppressive, anticancer, antioxidant, antiparasitic, anti-inflammatory, and antimicrobial activities. Owing to their metabolic versatility, endophytic fungi offer unique advantages in the discovery and development of new pharmaceutical agents. This chapter provides an overview of the diversity of endophytic fungi, highlights key classes of bioactive compounds derived from them, and explores their biomedical significance. Emphasis is placed on the potential of endophytic fungal metabolites to contribute to drug discovery pipelines and support the development of eco-friendly therapeutic alternatives.