1887

Abstract

SUMMARY: Several Gram-positive bacilli and Gram-negative bacteria were found to differ markedly in their ability to concentrate Mg from simple chemically defined media. In cultures of the Gram-negative bacteria the uptake of Mg was quantitative over the range where growth was limited by the concentration of Mg. The Gram-positive bacilli, however, were unable to utilize Mg when the external concentration was low, and at higher concentrations sufficient to support about half maximal growth, assimilated less than 50% of the available Mg. Both Gram-negative and Gram-positive organisms initially liberated Mg when suspended in Mg-free media, the Mg being re-utilized rapidly by the Gram-negative organisms. In suspensions of the liberation of Mg was independent of temperature and the re-utilization of Mg was dependent on temperature.

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/content/journal/micro/10.1099/00221287-43-3-401
1966-06-01
2019-10-15
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http://instance.metastore.ingenta.com/content/journal/micro/10.1099/00221287-43-3-401
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