Nanoscopy in a living multicellular organism expressing GFP |
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| Authors: | Rankin Brian R Moneron Gael Wurm Christian A Nelson Jessica C Walter Arne Schwarzer Dirk Schroeder Jörg Colón-Ramos Daniel A Hell Stefan W |
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| Institution: | †Department of NanoBiophotonics, Max Planck Institute for Biophysical Chemistry, Göttingen, Germany;‡Program in Cellular Neuroscience, Neurodegeneration and Repair, Department of Cell Biology, Yale University School of Medicine, New Haven, Connecticut;§Institute for Physical Chemistry, Georg-August-Universität Göttingen, Göttingen, Germany;¶Reaction Dynamics Group, Max Planck Institute for Biophysical Chemistry, Göttingen, Germany |
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| Abstract: | We report superresolution fluorescence microscopy in an intact living organism, namely Caenorhabditis elegans nematodes expressing green fluorescent protein (GFP)-fusion proteins. We also superresolve, by stimulated emission depletion (STED) microscopy, living cultured cells, demonstrating that STED microscopy with GFP can be widely applied. STED with GFP can be performed with both pulsed and continuous-wave lasers spanning a wide wavelength range from at least 556–592 nm. Acquiring subdiffraction resolution images within seconds enables the recording of movies revealing structural dynamics. These results demonstrate that numerous microscopy studies of live samples employing GFP as the marker can be performed at subdiffraction resolution. |
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