Ciliate protozoan, light micrograph

Ciliate protozoan, light micrograph

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Credit: FRANK FOX/SCIENCE PHOTO LIBRARY

Caption: Stentor ciliate protozoan. Differential interference contrast (DIC) light micrograph of a Stentor polymorphus ciliate protozoan preparing to eat algae (green, upper right). This freshwater protozoan feeds mainly on bacteria. It moves by beating its cilia, hair-like extensions that cover its body. The small green bodies inside the protozoan are individual Zoochlorella sp. algae, which have a symbiotic relationship with the protozoan. They photosynthesise inside the Stentor, providing it with sugars and oxygen, while deriving protection from their host. Magnification: x143 when printed at 10 centimetres wide.

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Keywords: alga, algae, animal, biological, biology, black background, cilia, ciliate, cilium, close-up, detail, dic, differential interference contrast, eating, endosymbiont, fauna, feeding, freshwater, internal, invertebrate, invertebrates, light micrograph, light microscope, lm, micro-organism, micro-organisms, microbiological, microbiology, microorganism, microorganisms, nature, photosynthetic, protozoa, protozoan, protozoans, single celled, single-celled, stentor polymorphus, symbiosis, symbiotic, unicellular, wildlife, zoochlorella, zoochlorellae, zoological, zoology

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