The growth patterns of yeast were manipulated with UV light through the negative so different areas of the image grew at different rates, causing some areas to be lighter or darker, resulting in a photograph.
A close up of the living yeast colonies. the yeast is the light part, the agar is the dark green part.
Controlling the humidity.
Cooking the agar gel the yeast live on.
Penicillin species growing on agar.
Fungal and bacterial colonies growing on agar.
Closeup of a bacterial colony.
Rusted plates with squares of agar clinging to their surface.