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Description:Under a relatively low magnification of 30X, this micrograph of a growing colony of Aspergillus alliaceus revealed some of the ultrastructural characteristics including the presence of sclerotia and conidial heads. Used as a food source during periods of dormancy, sclerotia consist of a hardened mass of the fungus’ own mycelia, and the conidia are the asexually-produced spores, or means of reproduction, which resides atop the conidiophore.
Aspergillus is a fungus that is common in the environment. It is found in soil, on plants, and in decaying organic matter. It is also found in household dust and building materials. There are many different species of Aspergillus, but the most common species are A. fumigatus and A. flavus. Other species are A. terreus, A. nidulans, and A. niger. Aspergillus spp. are responsible for the disease aspergillosis.
High Resolution: Click here for hi-resolution image (18.35 MB)
Content Providers(s):CDC/ Dr. Lucille K. Georg
Creation Date:1972
Photo Credit:
Links:CDC - National Center for Zoonotic, Vector-Borne, and Enteric Diseases; Division of Foodborne, Bacterial, and Mycotic Diseases, Aspergillosis
CDC Organization
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.