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<i>Micrococcus antarcticus</i> - psychrophilic (cold tolerant) bacterium
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Image #   281208B
Name:   Chromatium sp. - purple sulfur bacterium
Copyright:   Copyright 2010 Dennis Kunkel Microscopy, Inc.
Description:   Caption: Chromatium sp. - photoautotrophic, anaerobic, rod-shaped, Gram-negative bacterium. Chromatium species are photoautotrophic bacteria called purple sulfur bacteria. They exhibit bacterial photosynthesis whereby ATP is produced by cyclic photophosphorylation in the presence of light and bacteriochlorophyll A. Sulfide (such as hydrogen sulfide) is oxidized to produce sulfur granules in the cell cytoplasm. The sulfide is also converted in to sulfate which may serve as a cellular reserve. They are found in both freshwater and saltwater, especially in stagnant water.
Magnification*: x4,400
Type: SEM
    *(Magnifications are based on a 35mm slide image of 24mm in the narrow dimension.)
Keywords:   28120B 10.01.10 Chromatium bacteria bacterium gamma proteobacteria gamma proteobacteriim gammaproteobacteria gammaproteobacteriim purple bacteria purple bacterium purple sulfur bacteria purple sulfur bacterium proteobacteria proteobacterium Chromatiales Chromatiaceae photoautotrophic photoautotrophic bacteria photoautotrophic bacterium fresh water fresh water bacteria fresh water bacterium freshwater freshwater bacteria freshwater bacterium salt water salt water bacteria salt water bacterium saltwater bacteria saltwater bacterium bacilli bacillus gram negative gram-negative rod rod shaped rod-shaped rods bacteria photosynthesis bacterial photosynthesis bacterium photosynthesis dark fermentation sulfate sulfide sulfide oxidation sulfur sulfur bacteria sulfur bacterium ATP cyclic photophosphorylation sulfur oxidation sulfur granule sulfur granules photoautotroph hydrogen sulfide bacteriochlorophyll a red sulfur bacteria red sulfur bacterium bacteria chlorophyll bacteria chlorophyll A bacteriochlorophylls SEM phototroph phototrophic phototrophic bacteria phototrophic bacterium phototrophs

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