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  • Title: Ultrastructural and electron spectroscopic analyses of cyanobacteria and bacteria.
    Author: Golecki JR, Heinrich UR.
    Journal: J Microsc; 1991 Apr; 162(Pt 1):147-54. PubMed ID: 1651393.
    Abstract:
    The extracellular sheath material and some intracellular cell components of cyanobacteria and phosphate-accumulating sewage bacteria were analysed by electron spectroscopic imaging (ESI) and electron energy-loss spectroscopy (EELS). The specimens were embedded in water-soluble Nanoplast resin without any previous fixation and ultrathin sections were examined in a Zeiss CEM 902 microscope. A high sulphur content was detected in the inner sheath of the cyanobacterium Gloeothece. The elemental composition of some cell components and inclusion bodies, such as carboxysomes and cyanophycin, was determined by ESI and EELS. In addition, the phosphate content in specific granules of phosphate-accumulating sewage bacteria was estimated by EELS and nuclear magnetic resonance spectroscopy.
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