Spirogyra sp. green alga, LM

Credit: GERD GUENTHER/SCIENCE PHOTO LIBRARY

Caption: Light micrograph of Spirogyra sp., a freshwater filamentous green alga. Culture material of the Culture Collection of Algae at the University of Cologne. Microscopic contrast method: Epi-Fluorescence, blue excitation to show the spiral chloroplasts in red auto-fluorescence. Magnification 360x when printed at 10 centimetres width.

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Keywords: alga, algae, aquatic, biological, biology, black background, botanical, botany, ccac, culture collection, culture material, flora, fluorescence, freshwater, incident flourescence, light micrograph, microorganism, nature, photomicrograph, single-celled, spirogyra sp., unicellular

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