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This scanning electron microscopic (SEM) image revealed some of the ultrastructural features seen on the surface of an Acanthamoeba polyphaga protozoan. This particular amoeba displayed a rather smooth exterior, possibly in the process of encystation, a protective mechanism, which will lead to this organism developing a thickened, double-layered cell wall, and entering a stage of dormancy. Note PHIL 11900, where you are able to see this amoeba, adjacent to another, that was in the trophozoite, amoeboid stage of its life cycle.
High Resolution: Click here for hi-resolution image (5.49 MB)
Content Providers(s):CDC/ Catherine Armbruster; Margaret Williams
Creation Date:2009
Photo Credit:Janice Haney Carr
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.