Caption: Stentor polymorphus. Light microscope footage of a green stentor (Stentor polymorphus), a ciliate protozoan, feeding. Cilia can be seen around the oral area. Their rhythmic beating draws bacteria and other organisms into the cytostome or mouth. The green colour is caused by the presence of numerous Zoochlorella algae, with which it has a symbiotic relationship. The algae photosynthesise inside the protozoan, providing it with sugars and oxygen, while deriving protection from their host. Filmed with differential interference contrast illumination.

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Keywords: 1, 30 seconds or greater, alga, algae, algal, anchored, animalcule, aquatic, attached, biological, biology, cell, cilia, ciliate, cilium, dic, differential interference contrast illumination, fauna, feeding, foot, foraging, fresh water, freshwater, green, green stentor, grey background, hypotrich, invertebrate, invertebrates, light, lm, micro-organism, microbe, microbiological, microbiology, microorganism, microscope, microscopic, microscopy, motile, moving, multicellular, nature, no-one, nobody, one, organism, plankton, pond life, protist, protozoa, protozoan, single, single celled, single-celled, stentor, stentor polymorphus, stentor sp, symbionts, symbiosis, symbiotic, trumpet, unicellular, wildlife, zoochlorella, zoological, zoology

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Stentor polymorphus, light microscopy

K005/6715 Rights Managed

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Duration: 00:00:30

Frame size: 1920x1080

Frame rate: 25

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 666.7M


Capture format: Canon EOS 60D

Codec: H.264

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