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Polyol concentrations in Aspergillus repens grown under salt stress

Abstract

Na+, K+ and the ratio of Na+/K+ were higher in cells of the halotolerant Aspergillus repens grown with 2 M NaCl than without NaCl. The osmolytes, proline, glycerol, betaine and glutamate, did not affect the Na+/K+ ratio, nor the polyol content of cells under any conditions. The concentrations of polyols, consisting of glycerol, arabitol, erythritol and mannitol, changed markedly during growth, indicating that they have a crucial role in osmotic adaptation.

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Kelavkar, U.P., Chhatpar, H.S. Polyol concentrations in Aspergillus repens grown under salt stress. World J Microbiol Biotechnol 9, 579–582 (1993). https://doi.org/10.1007/BF00386298

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  • DOI: https://doi.org/10.1007/BF00386298

Key words

  • Aspergillus repens
  • halotolerant
  • osmolytes
  • polyols
  • salt stress