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Haematococcus algae bloom, LM

K009/3972

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Credit

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

Caption

Light microscope footage of Haematococcus sp. algae, showing the biflagellate cells moving in the water column of a bird bath sample. On the upper left of the field of view a big cell is pinched under the coverglass, showing the cellular details when the focus plane changes in z-direction. Haematococcus occurs as biflagellate single cells where the protoplast is connected to the wall by multiple, thin strands of cytoplasm. Cell structure and reproduction appear to be similar to those of Chlamydomonas. Mass reproduction often forms conspicuous red to deep-purple growths, based on accumulation of astaxanthin during formation of resting stages. Astaxanthin is commercially valuable as a food colorant and in cosmetic products. Microscopic contrast method used : differential interference contrast. Captured field width : 0,26mm.

Release details

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Downloadable Master

  • Duration: 00:00:19.13
  • Audio: No
  • Format: Photo JPEG 100% QuickTime movie

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  • Capture Format: Unknown

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