Diatom frustules (SEM)

Diatom frustules (SEM)

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Credit: POWER AND SYRED/SCIENCE PHOTO LIBRARY

Caption: Diatom frustules. Coloured scanning electron micrograph of diatom frustules (Cymbella gastroides). Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species. They form an important part of the plankton at the base of the marine and freshwater food chains. The characteristic feature of diatoms is their intricately patterned, glass-like cell wall, or frustule. The frustule often has rows of tiny holes, known as striae. Magnification x3490 (x865 at 10cm wide).

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Keywords: alga, algae, aquatic, cymbella gastroides, diatom, diatoms, frustule, frustules, microbiological, microbiology, navicula sp., phytoplankton, plankton, scanning electron micrograph, scanning electron microscope, sem, siliceous phytoplankton, single-celled, striae, unicellular

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