Lumazine-like fluorescence in a mass of spores of the cellular slime mold,Dictyostelium discoideum |
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Authors: | Saburo Uchiyama Shin-ichi Nagai Keizo Maruyama |
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Affiliation: | (1) Department of Biology, Dokkyo University School of Medicine, Mibu, 321-O2 Tochigi, Japan;(2) Laboratory of Biology, Faculty of Integrated Human Studies, Kyoto University, 606 Kyoto, Japan |
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Abstract: | Using a fluorospectrophotometer, we examined the fluorescence of a crude preparation from the spore masses ofDictyostelium discoideum. Fluorescence emission spectra and excitation spectra suggested that the fluorescence of the crude preparation was a lumazine-like fluorescence rather than a pterin-like fluorescence. By using a microspectrophotometer, we observedin situ the fluorescence emission of a lumazine-like substance localized only in the spore mass of the fruiting body. |
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Keywords: | Cellular slime mold Dictyostelium discoideum Lumazine Pterin Spore mass |
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