Light micrograph of a marine diatom,Navicula sp.. The diatoms are a distinctive group of single- celled algae containing about 10,000 species. They form an important part of the plankton at the base of the marine & freshwater food chains. The characteristic feature of diatoms is their intricately patterned,glass-like cell wall,or frustule. The frustule consists of 2 halves which fit together like the lid & bottom of a box. The frustule is often decorated with rows of tiny holes,known as striae,which are arranged either radially or,as here,on the 2 sides of a central axis. Magnification: x300 at 35mm size | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Nuridsany, Claude / Perennou, Maria |
Bildgröße: | 3496 px × 5101 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
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