This book provides a detailed compendium of the methods, biotechnological routes and processes used to investigate microbial resources and their applications. It covers the fundamental and applied aspects of microorganisms in the health, industry, agriculture and environmental sectors, reviewing subjects such as pest control, health and industrial developments and animal feed. Essential reading for researchers in biotechnology, biopharmaceuticals and agriculture, this book provides valuable information and presents recent developments in areas as diverse as crop productivity, mycorrhizal fungi, enzymes and plant disease management.