Fungal endophytes are fungi that live within the tissues of plants without causing any harmful effects to the host plant. These symbiotic organisms can be found in a wide range of plant species and are thought to provide benefits such as increased resistance to pathogens, improved growth and stress tolerance, and enhanced nutrient uptake. Research in this area focuses on understanding the diversity and functions of fungal endophytes, as well as their potential applications in agriculture, medicine, and biotechnology. Scientists are also investigating the interactions between fungal endophytes and their host plants, as well as the mechanisms by which these symbiotic relationships are established and maintained.