ID#: 11984
Under a magnification of 1850X, this photomicrograph of a periodic acid-Schiff (PAS)-stained tissue sample, revealed the histopathologic changes in a case of protothecosis, caused by the green algae of the genus, Prototheca. Though categorized taxonomically as an alga, Prototheca lacks chlorophyll, and therefore, derives its sustenance as a saprophyte, consuming dead and decaying organic matter. Under microscopic analysis, Prototheca spp. resemble a fungal organism, and can therefore, be mistaken when attempting to identify these algae.
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Content Provider(s): CDC/ Dr. Kaplan
Creation Date: 1971
Photo Credit:
CDC Organization
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Copyright Restrictions: None - This image is in the public domain and thus free of any copyright restrictions.