Credit: ROLAND GROSS/SCIENCE PHOTO LIBRARY

Caption: Stentor polymorphus. Light microscope footage of several of green stentor (Stentor polymorphus) feeding while attached to plant material. This species of freshwater ciliate protozoan feeds mainly on bacteria, using its hair-like cilia to waft food particles into its oral area. Its green colour is caused by the presence of numerous individual Zoochlorella sp. 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: 20 seconds or greater, alga, algae, algal, anchor, anchored, animalcule, aquatic, attached, biological, biology, cell, cilia, ciliate, cilium, dic, differential interference contrast illumination, fauna, feeding, 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, organism, plankton, pond life, protist, protozoa, protozoan, single celled, single-celled, small group, stentor, stentor polymorphus, stentor sp, symbionts, symbiosis, symbiotic, trumpet, unicellular, wildlife, zoochlorella, zoological, zoology

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Stentor polymorphus, light microscopy

K005/6731 Rights Managed

Downloadable master

Duration: 00:00:24.04

Frame size: 1920x1080

Frame rate: 25

Audio: No

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

File size: 587.1M

Original

Capture format: Canon EOS 600D

Codec: H.264

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