Diatom. Coloured scanning electron micrograph (SEM) of an Actinoptychus species diatom. Diatoms are single-celled photosynthetic algae, of which there are about 100, 000 species. The characteristic feature of diatoms is their intricately patterned, glass- like cell wall, or frustule. The frustule often has rows of tiny holes, known as striae.The diatoms form an important part of the plankton at the base of the marine and freshwater food chains. Magnification: x5000 when printed at 10 centimetres wide. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Gschmeissner, Steve |
Bildgröße: | 4572 px × 3967 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |