Asterionella ( Gr. asterion,a kind of spider) sp. Diatom colony,stained with acridine orange to show the nuclei. Asterionella diatom cells are elongate and joined at the ends by mucilage pads to form star-shaped colonies. The labiate chloroplast,showing red auto fluorescence,is distributed over the whole cell length. Acridine orange is used as a nucleic acid-selective fluorescent dye,showing DNA and RNA in yellow-green color under blue excitation. Culture material of the Culture Collection of Algae at the University of Cologne. Microscopic contrast technique : Incident fluorescence,blue excitation. Magnification 580x when printed 10 centimetres wide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Guenther, Gerd |
Bildgröße: | 4180 px × 4180 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |