2.2 Environmental and nutritional factors in growth and survival
Most of the information available on the growth and development of mold is derived from laboratory cultures rather than on site studies. This information is therefore not always relevant to the growth and development of the same organism in the library environment. It is however, accurate to say that three factors are essential for the growth and survival of molds: the correct temperature, adequate moisture, and proper nutrients. St. George9 notes that it is a common misconception that light is required for mold growth. Unlike most plants, virtually all molds lack chlorophyl and therefore, light plays no role in their development. Colonies thrive in the dark, since for some varieties, exposure to ultra-violet light is injurious or lethal.10
