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Hydrogen metabolism and the alternative nitrogenase in the cyanbacterium Anabaena variabilis

  • H. Bothe
  • G. Haverkamp
  • T. Kentemich

Abstract

The alternative nitrogenase was demonstrated in Azo-tobacter (1) and also occurs in Anabaena variabilis. This cyanobacterium can be grown in dependence on V in the medium under N2-fixing conditions(2). The cyanobacterial V-nitrogenase reduces C2H2 with lower rates than the Mo-enzyme, forms partly C2H6 and produces more H2 than the Azotobacter V-nitrogenase(3). This communication reports some new data on the expression of nitrogenases in A. variabilis.

Keywords

Nitrogen Fixation Fresh Medium Nitrate Reductase Control Culture Reductase Activity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. (1).
    Bishop, P.E., Jarlenski, D.M.L. & Hetherington, D. R. (1980) Proc. Natl. Acad. Sci. USA 77, 7342–7346CrossRefGoogle Scholar
  2. (2).
    Kentemich, T., Danneberg, G, Hundeshagen, B. & Bothe, H. (1988) FEMS Microbiol. Lett. 51, 19–24CrossRefGoogle Scholar
  3. (3).
    Eady, R. R. et al. (1988) in Nitrogen Fixation: Hundred Years After, eds. Bothe, H., De Bruijn F.J.& Newton, W.E. (Fischer, Stuttgart), pp.81–86Google Scholar
  4. (4).
    Kentemich T., Haverkamp G. & Bothe H. (1990) Naturwiss. 77, 12–18CrossRefGoogle Scholar

Copyright information

© Routledge, Chapman & Hall, Inc. 1990

Authors and Affiliations

  • H. Bothe
    • 1
  • G. Haverkamp
    • 1
  • T. Kentemich
    • 1
  1. 1.Botanisches InstitutUniversität KölnD-5-Köln 41Germany

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