Display options
Share it on

Plant Physiol. 1985 Sep;79(1):126-37. doi: 10.1104/pp.79.1.126.

Proteins Associated with Adaptation of Cultured Tobacco Cells to NaCl.

Plant physiology

N K Singh, A K Handa, P M Hasegawa, R A Bressan

Affiliations

  1. Department of Horticulture, Purdue University, West Lafayette, Indiana 47907.

PMID: 16664357 PMCID: PMC1074839 DOI: 10.1104/pp.79.1.126

Abstract

Cultured tobacco cells (Nicotiana tabacum L. cv Wisconsin 38) adapted to grow in medium containing high levels of NaCl or polyethylene glycol (PEG) produce several new or enhanced polypeptide bands on sodium dodecyl sulfate-polyacrylamide gel electrophoresis. The intensities of some of the polypeptide bands (molecular weights of 58, 37, 35.5, 34, 26, 21, 19.5, and 18 kilodaltons) increase with increasing levels of NaCl adaptation, while the intensities of other polypeptide bands (54, 52, 17.5, and 16.5 kilodaltons) are reduced. Enhanced levels of 43- and 26-kilodalton polypeptides are present in both NaCl and PEG-induced water stress adapted cells but are not detectable in unadapted cells. In addition, PEG adapted cells have enhanced levels of 29-, 17.5-, 16.5-, and 11-kilodalton polypeptides and reduced levels of 58-, 54-, 52-, 37-, 35.5-, 34-, 21-, 19.5-, and 18-kilodalton polypeptide bands.Synthesis of 26-kilodalton polypeptide(s) occurs at two different periods during culture growth of NaCl adapted cells. Unadapted cells also incorporate (35)S into a 26-kilodalton polypeptide during the later stage of culture growth beginning at midlog phase. The 26-kilodalton polypeptides from adapted and unadapted cells have similar partial proteolysis peptide maps and are immunologically cross-reactive. During adaptation to NaCl, unadapted cells synthesize and accumulate a major 26-kilodalton polypeptide, and the beginning of synthesis corresponds to the period of osmotic adjustment and culture growth. From our results, we suggest an involvement of the 26-kilodalton polypeptide in the adaptation of cultured tobacco cells to NaCl and water stress.

References

  1. Proc Natl Acad Sci U S A. 1981 Jun;78(6):3526-30 - PubMed
  2. Plant Physiol. 1984 Jul;75(3):566-72 - PubMed
  3. Plant Physiol. 1982 Nov;70(5):1303-9 - PubMed
  4. Nature. 1970 Aug 15;227(5259):680-5 - PubMed
  5. J Biol Chem. 1975 May 25;250(10):4007-21 - PubMed
  6. Plant Physiol. 1982 Apr;69(4):945-9 - PubMed
  7. Plant Physiol. 1983 Feb;71(2):215-22 - PubMed
  8. Proc Natl Acad Sci U S A. 1978 Feb;75(2):842-6 - PubMed
  9. Anal Biochem. 1966 Apr;15(1):45-52 - PubMed
  10. J Biol Chem. 1977 Feb 10;252(3):1102-6 - PubMed
  11. Plant Physiol. 1981 Sep;68(3):636-40 - PubMed
  12. Plant Physiol. 1984 Jul;75(3):573-81 - PubMed
  13. Plant Physiol. 1983 Jul;72(3):645-53 - PubMed
  14. Plant Physiol. 1980 Nov;66(5):787-92 - PubMed
  15. Scand J Immunol Suppl. 1973;1:161-4 - PubMed
  16. Anal Biochem. 1976 May 7;72:248-54 - PubMed
  17. Plant Physiol. 1981 Nov;68(5):1197-205 - PubMed
  18. Plant Physiol. 1985 Sep;79(1):118-25 - PubMed
  19. Plant Physiol. 1984 Apr;74(4):923-7 - PubMed
  20. Plant Physiol. 1984 Jul;75(3):639-44 - PubMed
  21. Science. 1976 Jan 16;191(4223):181-2 - PubMed
  22. Plant Physiol. 1973 Apr;51(4):620-5 - PubMed
  23. Plant Physiol. 1984 Mar;74(3):506-9 - PubMed
  24. Cell. 1980 Jul;20(3):761-7 - PubMed

Publication Types