Some properties of a Klebsiella pneumoniae ammonium transport negative mutant (Amt-)

The main property of an Amt- (ammonium transport negative) mutant of Klebsiella pneumoniae is its inability to accumulate NH4+ intracellularly. When growing on nitrogen sources other than NH4+, the mutant constantly looses NH3 by diffusion. This loss results in poor growth. The NH3 excretion suggest...

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Published in:Archives of microbiology 1984-10, Vol.139 (2-3), p.245-247
Main Authors: CASTORPH, H, KLEINER, D
Format: Article
Language:English
Subjects:
Ammonia - metabolism
Bacteriology
Biological and medical sciences
Biological Transport
Fundamental and applied biological sciences. Psychology
Klebsiella pneumoniae - genetics
Klebsiella pneumoniae - metabolism
Microbiology
Mutation
Nitrogen - metabolism
Nitrogenase - analysis
Permeability, membrane transport, intracellular transport
Quaternary Ammonium Compounds - metabolism
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description The main property of an Amt- (ammonium transport negative) mutant of Klebsiella pneumoniae is its inability to accumulate NH4+ intracellularly. When growing on nitrogen sources other than NH4+, the mutant constantly looses NH3 by diffusion. This loss results in poor growth. The NH3 excretion suggests the existence of a futile cycle (NH3 loss/NH4+ reabsorption) in the wild type and possibly other bacterial strains, which do not constantly excrete NH3.
doi_str_mv 10.1007/BF00402008
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subjects Ammonia - metabolism
Bacteriology
Biological and medical sciences
Biological Transport
Fundamental and applied biological sciences. Psychology
Klebsiella pneumoniae - genetics
Klebsiella pneumoniae - metabolism
Microbiology
Mutation
Nitrogen - metabolism
Nitrogenase - analysis
Permeability, membrane transport, intracellular transport
Quaternary Ammonium Compounds - metabolism
title Some properties of a Klebsiella pneumoniae ammonium transport negative mutant (Amt-)
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