Planktonic diatom alga. Coloured scanning electron micrograph (SEM) of a Coscinodiscus sp. diatom alga (orange). 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. The cell wall of a diatom is often intricately patterned,and has rows of tiny holes,known as striae | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Gschmeissner, Steve |
Taille de l’image : | 2913 px × 2184 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |