Ultrastructural and Chemical Characterization of a Cyanobacterial S-Layer Involved in Fine-Grain Mineral Formation
Cyanobacteria belonging to the Synechococcus group are unicellular, marine or freshwater organisms which gain energy from light through oxygenic photosynthesis and carbon from CO2 (as HCO3- in the alkaline waters they usually inhabit). During CO2 fixation, HCO3- is taken into the cell and OH- is released, leading to alkalization of the microenvironment surrounding each cell (Miller and Colman, 1980). This pH effect has important geochemical implications in the natural environment.
KeywordsOuter Membrane Oxygenic Photosynthesis Authigenic Mineral Computer Image Processing Synechococcus Cell
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