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Assorted diatoms, single-celled algae

Assorted diatoms, single-celled algae

B305/0088

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35.1 MB (35.0 MB compressed)

4299 x 2854 pixels

36.3 x 24.1 cm ⏐ 14.3 x 9.5 in (300dpi)

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Credit

JOHN DURHAM / SCIENCE PHOTO LIBRARY JOHN DURHAM / SCIENCE PHOTO LIBRARY

Caption

Light micrograph of a mixture of diatoms, a group of single-celled algae that form an important part of the plankton in fresh and salt waters. A feature of diatoms is there glass-like cell wall, or frustule. The frustule consists of two halves, the valves, which fit together like the two parts of a pill box. One half is slightly bigger & acts as the 'lid' of the box. On division, each valve produces a new half inside itself. The 'lid' generates a cell which is the same size as the original, but the bottom produces a smaller cell. After repeated divisions of the small cell, sexual auxospores are produced to restore the maximum cell size. Magnification: x25 at 35mm size.

Release details

Model release not required. Property release not required.

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