Diatoms, SEM

Bildnummer 13419914
Diatoms, SEM
Diatoms. Coloured scanning electron micrograph (SEM) of Campylodiscus species diatoms. The diatoms are a group of photosynthetic, single-celled algae containing about 100, 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: x1000 when printed at 10 centimetres wide.
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Credit: Science Photo Library / Gschmeissner, Steve
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