Abstract
This book gives an overview on the current knowledge about endophytic fungi and bacteria, their diversity, their relationships with plant pests and pathogens, their distribution and activities inside the plant and their (potential) applications in developing more sustainable agricultural practices. Furthermore, the identification of chemical constituents synthesized by endophytes or by the endophyte-host plant association is discussed, as they can be most relevant for identifying novel compounds significant for medicine, such as antibiotics and anticancer drugs, and for agriculture, such as biologically sound pesticides. It demonstrates that the current research on endophytes is highly technology-based on every level, relying on state-of-the-art molecular, biochemical, microscopical, computational and biological methods.