Regulation of the potassium to sodium ratio and of the osmotic potential in relation to salt tolerance in yeasts.

@article{Norkrans1969RegulationOT,
  title={Regulation of the potassium to sodium ratio and of the osmotic potential in relation to salt tolerance in yeasts.},
  author={Birgitta Norkrans and Anders Kylin},
  journal={Journal of bacteriology},
  year={1969},
  volume={100 2},
  pages={836-45}
}
By using the isotope pairs (22)Na-(24)Na and (42)K-(86)Rb, the uptake and retention of Na and K was studied in the salt-tolerant Debaryomyces hansenii and in the less tolerant Saccharomyces cerevisiae at NaCl levels of 4 mm and 0.68, 1.35, and 2.7 m in the medium. The ratio of K to Na is much higher in the cells than in the media, and higher in D. hansenii than in S. cerevisiae under comparable conditions. The difference between the two species is due to a better Na extrusion and a better… CONTINUE READING