ID#: 11900
Caption:
This scanning electron microscopic (SEM) image revealed some of the ultrastructural features seen on the surface of two Acanthamoeba polyphaga protozoa. The amoeba on the right is in its trophozoite stage, able to move about using pseudopodia it extends from its exterior. The amoeba on the left has entered into a cystic stage, whereupon, its cell wall has doubled in thickness, shielding it from adverse environmental conditions, and a state of dormancy has settled over the organism.
High Resolution: Click here for hi-resolution image (5.49 MB)
Content Provider(s): CDC/ Catherine Armbruster; Margaret Williams
Creation Date: 2009
Photo Credit: Janice Haney Carr
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Copyright Restrictions: Permission is not required for public domain images, however, these images are provided by CDC and are available for personal, professional, and educational use with appropriate attribution. Redistribution must credit CDC and, where known, the individual photographer, and identify the CDC website as the free source. For additional terms see Use of Agency Materials | Other | CDC