THE FLUORESCENT CHARACTER OF THE PRECAMBRIAN MICROFOSSILS
Phosphatized microfossils from the Doushantuo Formation of China play an important role in the evolution of early life. Ancient life preserved as fossils including algae, sponge and animals with cellular structure1-4. Most studies before based on the observation of transmission light microscopy and scanning electron microscopy1,2. Here we show the fluorescent character of the Doushantuo microfossils by using confocal laser scanning microscopy. We found that the Doushantuo microfossils emitted fluorescence when illuminated by laser light and the fluorescence was related with preservation state. Through three-dimensional reconstruction of the algae fossils, and animal fossils we found that the decayed parts of algae could be preserved as their original shape. However, the fluorescence of the decayed parts was definitely weaker than the well-preserved parts. The spicules of sponge without fluorescence indicated that they are different in fossilization from that of the other cells of sponge. Furthermore, the animal cells preserved more fluorescent information than the algae cells. Therefore, The fluorescent phenomenon of Precambrian fossils would direct us to study the preservation state of different fossil cells.
Fossil embryos algae fluorescent preservation
Huimei Chi Zhongdang Xiao
State Key Laboratory of Molecular & Biomolecular Electronics, Southeast University,Nanjing 210096, China
国际会议
The 4th International Forum on Post-genome Technologies(4IFPT)(第四届国际后基因组生命科学技术学术论坛)
杭州
英文
283-285
2006-09-25（万方平台首次上网日期，不代表论文的发表时间）