The respiration of Escherichia coli is severely inhibited, during hyperosmotic stress period, as a consequence of plasmolysis; deplasmolysis allows the cell to recover respiration. A mutant lacking all K+ transport systems can neither deplasmolyze nor recover respiration unless betaine is present in the medium. Betaine, in these conditions, increases both cytoplasmic volume and respiration; this suggests a control of respiration by cytoplasmic volume.
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| http://dx.doi.org/10.1111/j.1574-6968.1994.tb07113.x | DOI Listing |
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