MRT letter: Localization of endogenous hydrogen peroxide by modified processes of sample preparation for transmissionelectron microscope in Escherichia coli
文献类型: 外文期刊
第一作者: Hu, Rongliu
作者: Hu, Rongliu;Zhu, Wenxue;Fan, Jinling;Wang, Na;Wang, Liping;Yang, Lipeng;Li, Xin;He, Chenyang;Pang, Xinyue;Zhao, Chunyan
作者机构:
关键词: Escherichia coli;Fixation;Hydrogen peroxide;Staining;Transmission electron microscope
期刊名称:MICROSCOPY RESEARCH AND TECHNIQUE ( 影响因子:2.769; 五年影响因子:2.11 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: The bacterial endogenous hydrogen peroxide (H_2O_2) was detected cytochemically by its reaction with cerium chloride (CeCl_3) to produce electron-dense deposits of cerium perhydroxides. The sequence of fixation and CeCl_3 staining of H_2O_2 in the processing of transmission electron microscope (TEM) sample preparation is crucial to the localization of endogenous H_2O_2 in Escherichia coli. In this study, results confirmed that the process that fixation simultaneously with CeCl_3 staining provided optimum effects for H_2O_2 localization in E. coli. The modified process of TEM provides very efficient protection for H_2O_2 localization and more accurate quantization for the H_2O_2 accumulation in bacterial cells.
分类号: TH742
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