Fragilaria diatoms. Polarised light micrograph of Fragilaria sp. diatoms. 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. Magnification: x400 when printed 10 centimetres wide | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Mis, Marek |
Taille de l’image : | 5139 px × 3404 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |