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Inorganic nitrogen metabolism in marine bacteria: Nitrogen assimilation in some marine pseudomon

Published online by Cambridge University Press:  11 May 2009

C. M. Brown
Affiliation:
Department of Microbiology, University of Newcastle upon Tyne, NE RU
Deborah S. Macdonald-Brown
Affiliation:
Department of Microbiology, University of Newcastle upon Tyne, NE RU
S. O. Stanley
Affiliation:
Dunstaffhage Marine Research Laboratory Oban, PA AD

Extract

Twelve strains of psychrophilic, marine pseudomonads which grew readily on nitrate or a mixture ofamino acids, were tested for their content of the enzymes glutamine 2-oxoglutarate amino transferase (GOGAT) and glutamic dehydrogenase (GDH). All strains contained GOGAT activity when grown on nitrate and GDH when grown on amino acids. In all strains tested the synthesis of GOGAT was repressed by growth on amino acids and derepressed by growth on nitrate.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 1972

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