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Phacus orbicularis algae, LM

K009/4000

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Credit

GERD GUENTHER / SCIENCE PHOTO LIBRARY GERD GUENTHER / SCIENCE PHOTO LIBRARY

Caption

Light microscope footage of Phacus orbicularis algae, showing the beating flagellum and the movement of the oval and highly flattened cells. Phacus (from the Greek phakos , lentil) cells have a rigid pellicle, euglenoid, metabolic movements do not occur. Euglenoids are among the most ancient lineages of eukaryotic algae. Euglenoids display a surface structure composed of parallel ribbonlike strips, running lengthwise down the cells. The algae contain Paramylon grains (a starch-like carbohydrate) as well as a characteristic red eyespot. Phacus orbicularis is photosynthetic, using the energy of sunlight to synthesize food. The eyespot is sensitive to light, allowing it to move towards sunlight. Microscopic contrast method used: differential interference contrast. Captured field width: 0.17 mm. Sample taken from of an algae culture of the culture collection of algae at the university of Cologne, CCAC.

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Downloadable Master

  • Duration: 00:00:26.01
  • Audio: No
  • Format: Photo JPEG 100% QuickTime movie

Original

  • Capture Format: Unknown

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