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Plant Physiol. 1997 Jun;114(2):429-438. doi: 10.1104/pp.114.2.429.

Tissue-Type-Specific Heat-Shock Response and Immunolocalization of Class I Low-Molecular-Weight Heat-Shock Proteins in Soybean.

Plant physiology

T. L. Jinn, PFL. Chang, Y. M. Chen, J. L. Key, C. Y. Lin

Affiliations

  1. Department of Botany, National Taiwan University, Taipei 106, Taiwan, Republic of China (T.-L.J., P.-F.L.C., Y.-M.C., C.-Y.L.).

PMID: 12223717 PMCID: PMC158322 DOI: 10.1104/pp.114.2.429

Abstract

A monospecific polyclonal antibody was used to study the tissue-type specificity and intracellular localization of class I low-molecular-weight (LMW) heat-shock proteins (HSPs) in soybean (Glycine max) under different heat-shock regimes. In etiolated soybean seedlings, the root meristematic regions contained the highest levels of LMW HSP. No tissue-type-specific expression of class I LMW HSP was detected using the tissue-printing method. In immunolocalization studies of seedlings treated with HS (40[deg]C for 2 h) the class I LMW HSPs were found in the aggregated granular structures, which were distributed randomly in the cytoplasm and in the nucleus. When the heat shock was released, the granular structures disappeared and the class I LMW HSPs became distributed homogeneously in the cytoplasm. When the seedlings were then given a more severe heat shock following the initial 40[deg]C -> 28[deg]C treatment, a large proportion of the class I LMW HSPs that originally localized in the cytoplasm were translocated into the nucleus and nucleolus. Class I LMW HSPs may assist in the resolubilization of proteins denatured or aggregated by heat and may also participate in the restoration of organellar function after heat shock.

References

  1. J Cell Biol. 1985 Oct;101(4):1198-211 - PubMed
  2. Mol Cell Biol. 1993 Jan;13(1):238-47 - PubMed
  3. J Cell Biol. 1967 Jul;34(1):61-76 - PubMed
  4. Nature. 1970 Aug 15;227(5259):680-5 - PubMed
  5. J Biol Chem. 1995 May 5;270(18):10432-8 - PubMed
  6. Nature. 1994 Dec 1;372(6505):475-8 - PubMed
  7. Plant Physiol. 1994 Aug;105(4):1255-1261 - PubMed
  8. Plant Physiol. 1992 Aug;99(4):1279-84 - PubMed
  9. Biochem J. 1984 Dec 1;224(2):677-80 - PubMed
  10. Histochem J. 1983 Jan;15(1):39-58 - PubMed
  11. Plant Physiol. 1988 Apr;86(4):1240-6 - PubMed
  12. J Biol Chem. 1993 Jan 25;268(3):1517-20 - PubMed
  13. Proc Natl Acad Sci U S A. 1979 Sep;76(9):4350-4 - PubMed
  14. Plant Physiol. 1984 Jan;74(1):152-60 - PubMed
  15. Plant Physiol. 1995 Jun;108(2):693-701 - PubMed
  16. J Ultrastruct Res. 1971 Feb;34(3):375-96 - PubMed
  17. J Cell Biol. 1990 Jun;110(6):1873-83 - PubMed
  18. Exp Cell Res. 1974 Jun;86(2):285-94 - PubMed
  19. Dev Biol. 1980 Jul;78(1):86-103 - PubMed
  20. Plant Physiol. 1991 Aug;96(4):1038-47 - PubMed
  21. Proc Natl Acad Sci U S A. 1981 Jun;78(6):3526-30 - PubMed
  22. Eur J Cell Biol. 1984 Jul;34(2):254-64 - PubMed
  23. Plant Physiol. 1985 Nov;79(3):672-8 - PubMed
  24. J Cell Biol. 1988 Apr;106(4):1131-9 - PubMed

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