X-ray microanalysis of intracellular ions in the anaerobic halophilic eubacterium Haloanaerobium praevalens

Aharon Oren*, Mikal Heldal, Svein Norland

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

The intracellular concentrations of Na+, K+, and Cl- of the anaerobic halophilic eubacterium Haloanaerobium praevalens were assayed by means of X- ray microanalysis with the transmission electron microscope. Apparent intracellular cation concentrations between 1.22 and 1.91 M and chloride concentrations of 0.93-1.57 M were measured in cells growing exponentially in 2.6 M total salts. In exponentially growing cells, K+ was the major cation (70% of the cation sum). Stationary phase cells showed a high variability among individual cells, some of the cells containing higher Na+ than K+ concentrations.

Original languageAmerican English
Pages (from-to)588-592
Number of pages5
JournalCanadian Journal of Microbiology
Volume43
Issue number6
DOIs
StatePublished - 1997

Keywords

  • Haloanaerobium praevalens
  • Intracellular ion concentrations
  • Potassium
  • Sodium
  • X-ray microanalysis

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