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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1980-5-23
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pubmed:abstractText |
With a glucose-limited culture of Klebsiella aerogenes, growing at a fixed dilution rate (0.4 h-1), the specific respiration rate varied progressively as a function of the transmembrane K+ gradient. The latter was varied by changing the input K+ concentration and, under these conditions, the specific respiration rate was linearly related to the electrochemical potential of the K+ gradient. Increasing or decreasing the transmembrane K+ gradient in putatively potassium-limited cultures elicited marked changes in respiration rate consistent with the conclusion that the exceptionally high respiration rates expressed by fully glucose-sufficient potassium-limited cultures (i.e., values in excess of 25 mmol O2/g dry weight organisms . h, at D = 0.4 h-1) are necessary to scavenge traces of K+ from the environment and hence maintain an exceptionally high transmembrane K+ gradient.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0302-8933
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
123
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
183-8
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pubmed:dateRevised |
2000-12-18
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pubmed:meshHeading |
pubmed-meshheading:395915-Cell Membrane Permeability,
pubmed-meshheading:395915-Energy Metabolism,
pubmed-meshheading:395915-Glucose,
pubmed-meshheading:395915-Glycerol,
pubmed-meshheading:395915-Klebsiella pneumoniae,
pubmed-meshheading:395915-Oxygen Consumption,
pubmed-meshheading:395915-Potassium
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pubmed:year |
1979
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pubmed:articleTitle |
Energy requirement for maintenance of the transmembrane potassium gradient in Klebsiella aerogenes NCTC 418: a continuous culture study.
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pubmed:publicationType |
Journal Article
|