GERD GUENTHER / SCIENCE PHOTO LIBRARY GERD GUENTHER / SCIENCE PHOTO LIBRARY
Light micrograph of Nostoc sp. (Name given by Paracelsus, Swiss physician) freshwater cyanobacteria, showing filaments of round cells, surrounded by mucilage. Embedded in Indian Ink to show the huge mucilage production. Culture material of the Culture Collection of Algae at the University of Cologne, Germany. Microscopic contrast method : Differential interference contrast. Magnification 580x when printed at 10 centimetres wide.
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