Colonial freshwater diatoms

Colonial freshwater diatoms

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This image is part of the feature The Algae

Credit: POWER AND SYRED/SCIENCE PHOTO LIBRARY

Caption: Light micrograph of assorted freshwater diatoms. The rectangular, broken filaments seen here are simple colonies. They consist of a chain of diatoms which have failed to separate following cell division, each glued to its neighbours by a mucilaginous material. Diatoms are a group of single-celled algae distinguished by their intricately-patterned glass-like cell wall or "frustule". The frustule consists of two halves, the valves, which fit together like the lid and bottom of a box. Diatoms form an important component of the marine & freshwater plankton. Magnification: x200 at 35mm size.

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Keywords: alga, algae, algal, botany, colonial, colonial diatom, diatom, diatoms, light micrograph, nature, phytoplankton, plankton, plant

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