E. GUEHO / SCIENCE PHOTO LIBRARY E. GUEHO / SCIENCE PHOTO LIBRARY
False-colour scanning electron micrograph (SEM) of the fungus Aspergillus nidulans, producer of the mycotoxin "sterigmatocysin" and a cause of asper- gillosis. Here, fungal threads are seen, many of which are swollen into fruiting bodies (conidio- phores) bearing short chains of spores. Species of Aspergillus are common saprophytic moulds, such as those seen on stored food. A.nidulans is important in producing the toxin "sterigmatocysin" which may lead to food contamination. This species may also cause allergic aspergillosis, a hypersensitive lung reaction, in asthmatics & those with lowered resistance, provoked by repeated inhalation of the spores. Magnification: x245 at 6x7cm size.
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