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Regulation of Nitrogen Assimilation in the Cyanobacterium Synechococcus

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Nitrogen Fixation

Part of the book series: Developments in Plant and Soil Sciences ((DPSS,volume 48))

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Abstract

Synechococcus is a unicellular cyanobacterium able to assimilate nitrate, nitrite or ammonium. Cellular elements involved in the assimilation of these compounds are subjected to repression by ammonium. Ammonium also promotes an immediate inhibition of the nitrate transport system. We have recently identified a gene (ntcA) whose product appears to be required for the expression of genes subjected to repression by ammonium. Mutants that constitutively express elements of the nitrate assimilation system have also been reported, suggesting that negative regulatory elements might also be involved in the control of nitrogen assimilation in Synechococcus.

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Authors and Affiliations

  1. Instituto de Bioquímica Vegetal y Fotosíntesis, Universidad de Sevilla-CSIC, Facultad de Biología, Apartado 1113, 41080, Sevilla, Spain

    A. Herrero, M. A. Vega-Palas & E. Flores

Authors
  1. A. Herrero
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  2. M. A. Vega-Palas
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  3. E. Flores
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Editor information

Editors and Affiliations

  1. University of Florence, Florence, Italy

    M. Polsinelli , R. Materassi  & M. Vincenzini ,  & 

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© 1991 Springer Science+Business Media Dordrecht

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Herrero, A., Vega-Palas, M.A., Flores, E. (1991). Regulation of Nitrogen Assimilation in the Cyanobacterium Synechococcus . In: Polsinelli, M., Materassi, R., Vincenzini, M. (eds) Nitrogen Fixation. Developments in Plant and Soil Sciences, vol 48. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-3486-6_85

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  • DOI: https://doi.org/10.1007/978-94-011-3486-6_85

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-5541-3

  • Online ISBN: 978-94-011-3486-6

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