EYE OF SCIENCE / SCIENCE PHOTO LIBRARY EYE OF SCIENCE / SCIENCE PHOTO LIBRARY
Infected apple. Coloured scanning electron micrograph (SEM) of unidentified yeast (blue) and mould fungi (green) in a crack on the surface of an apple (orange). Yeast are single-celled fungi. Fungal spores that have landed on the exposed flesh have germinated, thriving in its sugary environment. Yeast ferments sugars, producing alcohol and carbon dioxide. Magnification: x720 at 6x7cm size.
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