Gyrosigma. Light micrograph of the rod-shaped pennate diatom Gyrosigma sp. These diatoms are capable of a gliding motility due to the slit (known as a raphe) that runs the length of the body. Diatoms are single-celled algae that exist in huge numbers in marine and freshwater environments. They account for a large proportion of the microscopic plankton that forms the basis of marine food chains. Their ornate,silica-rich cell walls consist of two overlapping valves called frustules,which clip together like the lid and body of a pillbox. Magnification: x85 at 35mm size | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Michler, Astrid & Hans-Frieder |
Taille de l’image : | 5153 px × 3543 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |