Differential interference contrast (DIC) light micrograph of a Pennate diatom. Diatoms are single-celled photosynthetic algae, of which there are about 100, 000 species. They have mineralised cell walls (frustules) that contain silica and provide protection and support. They form an important part of the plankton at the base of the marine and freshwater food chains. This sample is undergoing cell-division. Magnification: x225 when printed at 10 centimetres wide at its longest edge. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / HAKAN KVARNSTROM |
Taille de l’image : | 7200 px × 4800 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |