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Coscinodiscus diatom, SEM
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Coscinodiscus diatom, SEM
Coscinodiscus diatom. Coloured scanning electron micrograph (SEM) of a Coscinodiscus diatom (red). This is a marine 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. The diatoms form an important part of the plankton at the base of the marine and freshwater food chains. Magnification: x600 when printed 10 centimetres wide
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Media ID 6299113
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
Alga Algae Algal Cell Wall Colored Diatom Diatoms Eukaryotic False Colour Frustule Heterokont Heterokontophyta Mineralised Photosynthetic Phytoplankton Plankton Planktonic Protection Protective Protist Protista Single Celled Specialised Stramenopiles Support Supportive Unicellular False Coloured Micro Biology Microbiological
EDITORS COMMENTS
This print showcases a vibrant Coscinodiscus diatom, captured using a scanning electron microscope (SEM). The diatom, colored in striking red, is part of the vast family of single-celled photosynthetic algae known as diatoms. With an estimated 100,000 species, these microscopic organisms play a crucial role in marine and freshwater ecosystems. The mineralized cell walls of the diatoms, called frustules, are composed of silica. These frustules not only provide protection but also offer support to the delicate organism. As one of nature's specialized creations, this marine diatom forms an essential component of plankton - the foundation of food chains in aquatic environments. When printed at 10 centimeters wide with a magnification level of x600, this SEM image reveals intricate details that would otherwise remain hidden from our eyes. The false coloring technique used enhances its visual appeal while allowing scientists to study its biological structures more effectively. This mesmerizing photograph serves as a reminder of the remarkable diversity found within our natural world. It highlights the beauty and complexity present even at microscopic levels and underscores how vital these tiny organisms are for sustaining life in our oceans and lakes.
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