2.2.3 Nutrients

The elements required for the growth of fungi include carbon, hydrogen, oxygen, nitrogen, sulfur, potassium, and magnesium. Trace elements such as iron, zinc, copper, manganese, and in some cases, calcium may also be required. Certain of the vitamins are also needed. Most naturally occuring compounds can be utilized by fungi as sources of carbon and energy. Cellulose provides many of these elements, as do animal and vegetable fats and their component acids and glycerine.¹³