ANDREW MCCLENAGHAN / SCIENCE PHOTO LIBRARY ANDREW MCCLENAGHAN / SCIENCE PHOTO LIBRARY
Macrophotograph of a colony of the fungus Penicillium notatum growing on a culture of Whickerham's agar. The antibiotic penicillin is derived from the mould & used to treat a variety of bacterial infections.
Model release not required. Property release not required.