Identification and physiological characterization of the nitrogen fixing bacterium Corynebacterium autotrophicum GZ 29

  title={Identification and physiological characterization of the nitrogen fixing bacterium Corynebacterium autotrophicum GZ 29},
  author={H. Berndt and K. P. Ostwal and J. Lalucat and Christa Schumann and F. Mayer and H. Schlegel},
  journal={Archives of Microbiology},
The coryneform hydrogen bacterium strain GZ 29, assigned to Corynebacterium autotrophicum fixed molecular nitrogen under autotrophic (H2, CO2) as well as under heterotrophic (sucrose) conditions. Physiological parameters of nitrogen fixation were measured under heterotrophic conditions. The optimal dissolved oxygen concentration for cells grown in a fermenter with N2 was rather low (0.14 mg O2/l) compared with cells grown in the presence of NH4+(4.45 mg O2/l). C. autotrophicum GZ 29 had a… Expand
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  • D. Gadkari
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  • Biology and Fertility of Soils
  • 2004
The influence of the photosynthesis-inhibiting herbicides Goltix and Sencor on growth and nitrogenase activity of Anabaena cylindrica and Nostoc muscorum was studied and other species of cyanobacteria may occur which are able to tolerate photosynthetic herbicides. Expand
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Azotobacter chroococcum organisms, grown in continuous culture without fixed nitrogen, had chemical compositions at various dilution rates characteristic of nitrogen-limited populations, which corresponded to theory for the nutritional state considered. Expand
Regulation of dinitrogen fixation in intact Azotobacter vinelandii.
It could be demonstrated that respiration-coupled transport of reducing equivalents to the nitrogenase requires a high energy level of the plasma membrane or possibly coupled to it, a high pH gradient over the cytoplasmic membrane, which is controlled by the presence of oxygen and the ATP/ADP ratio. Expand
Relation between anaerobic ATP synthesis from pyruvate and nitrogen fixation in Azotobacter vinelandii
The anaerobic ATP synthesis from pyruvate in Azotobacter vinelandii is reported on and the significance of this process in nitrogen fixation is reported. Expand
N2-Fixation by chemoautotrophic hydrogen bacteria
The Gram-positive coryneform bacteria strains 14g and 7C were found to be able to grow with N2 as sole nitrogen source when incubated under microaerobic conditions. Nitrogenase activity in wholeExpand
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Fuctuations of nitrogenase activity occurring during exponential growth and the mechanism of their regulation are discussed. Expand
Acetylene reduction with physiological electron donors by extracts and particulate fractions from nitrogen-fixing Azotobacter chroococcum.
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Acetylene reduction by nitrogen-fixing preparations from Clostridium pasteurianum.
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  • 1966
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A vigorously nitrogen-fixing bacterium was isolated from a West Bengal soil and regarded as representing a new genus, morphologically, culturally and serologically different from Azotobacter and Beijerinckia. Expand
Enrichment and isolation of nitrogen fixing hydrogen bacteria
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