Light micrograph of the marine diatom Actino- ptychus ondulatus. 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 and freshwater food chains. The character- istic 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 and bottom of a box. The frustule is often decorated with rows of tiny holes,known as striae,which are arranged either radially (as here) or on the 2 sides of a central axis | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Nuridsany, Claude / Perennou, Maria |
Taille de l’image : | 5113 px × 3486 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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