Abstract
IN a previous communication1, the possible influence of low population densities on the growth of Spirillum serpens under steady-state conditions (lactate growth limiting) was reported. Qualitative evidence was given by the fact that the inhibition of growth at low concentrations of the limiting nutrient entering the chemostat was partly removed by lowering the concentration of dissolved O2 or the addition of ascorbic acid to the medium. It was suggested that the reducing power of the cells becomes growth limiting in the system when the population density falls below a certain value. Additional data have been collected to substantiate this suggestion.
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References
Jannasch, H. W., Nature, 196, 496 (1962).
Herbert, D., Elsworth, R., and Telling, R. C., J. Gen. Microbiol., 14, 601 (1956).
Scholz, R., Schmitz, H., Bücher, Th., and Lampen, J. O., Biochem. Z., 331, 71 (1959).
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JANNASCH, H. Bacterial Growth at Low Population Densities (II). Nature 197, 1322 (1963). https://doi.org/10.1038/1971322a0
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DOI: https://doi.org/10.1038/1971322a0
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