DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY
Coloured scanning electron micrograph (SEM) of Fungal mould spores on a ragweed stamen. Powdery mildew mould hypha and spores. Moulds often produce allergic reactions and can cause serious agriculture diseases. Spores are usually produced at the ends of the fungal hyphae. Magnification: x500 when shortest axis printed at 25 millimetres.
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