Contact: Bill S. Hansson
Max Planck Institute for Chemical Ecology
Caption: Geosmin, the typical earthy smell released by mold fungi and other microbes. In the picture is its chemical structure − a bicyclic alcohol − as well as a rotting orange infested with a Penicillium fungus. Although geosmin is very widely spread in nature, it is produced and released only by certain microbes.
Credit: Photo/Collage: Cell Press / Elsevier / Max Planck Institute for Chemical Ecology / Stensmyr
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