Diatom cell wall. Coloured scanning electron micrograph (SEM) of the pattern of small holes,called striae,in the cell wall of a diatom alga. This is a Coscinodiscus sp. diatom. A diatom is a planktonic unicellular alga that has silica in its cell wall (frustule). Diatoms are photosynthetic,and they are found in both marine and freshwater environments | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Gschmeissner, Steve |
Taille de l’image : | 2907 px × 2183 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |