The nutrition of a vegetative fungal colony can be viewed as a web of interconnected processes. In this volume, the author provides a mechanistic basis to the subject, focusing on the processes at the plasma membrane, the modulating effects of the fungal wall, and the fate of nutrients entering the fungus. The major emphasis is physiological, but biochemical and molecular biological information has also been drawn upon when appropriate, to reflect the power of a multifaceted approach and further encourage such study. A comprehensive review of what is known about the more commonly studied fungal species is complemented by information on other fungi, to provide an indication of the diversity of nutritional processes which exist in the fungal kingdom.