Advertisement

The Role of Electrical Potential in Light-Induced Swelling and Shrinkage of Thylakoid Membranes

  • Huan-gen Ding
  • Yun-kang Shen

Abstract

Light-induced conformational change of thylakoids was widely studied in the 60’,-70’s[l][2]. Recently, the curiosity to understand the regulatory process of photosynthesis in vivo[3] has led people to work on this topic again[4][5]. It has been demonstrated that the shrinkage of thylakoids is induced by ΔpK and osmotic movement of weak organic acids across thylakoid membrane[2][6]. However, it has not been reported hitherto that the electrical potential involves in the light-induced conformational change of thylakoids. Electrical potential formation of thylakoid membranes under light has been studied for many years[7]. But the regulation of photosynthetic electron transport by electrical potential was not identified until 80’s[8][9]. In this paper, we studied the effects of electrical potential on light-induced conformational change of thylakoids, and found that a decline of electrical potential will induce or increase the light-induced shrinkage of thylakoid in medium without or with weak organic acids.

Keywords

Electrical Potential Thylakoid Membrane Photosynthetic Electron Transport Absorbance Change Intact Chloroplast 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Packer L., Siegenthaler P.A. and Nobel P.S. (1965) J. Cell Biol. 26,593–599PubMedCrossRefGoogle Scholar
  2. 2.
    Krause G.H. (1973) Biochira. Biophys. Acta 292,715–728CrossRefGoogle Scholar
  3. 3.
    Dietz K.J., Neimani S. and Heber U. (1984) Biochim. Biophys. Acta 767,444–450CrossRefGoogle Scholar
  4. 4.
    Köster S and Heber U. (1982) Biochim. Biophys. Acta 680,88–94CrossRefGoogle Scholar
  5. 5.
    Coughlan S.J. and Pfanz H. (1986) Biochim. Biophys. Acta 849,32–42CrossRefGoogle Scholar
  6. 6.
    Ding Huan-gen and Shen Yun-kang (1989) Science Bulletin 17,1345–1348Google Scholar
  7. 7.
    Witt H.T. (1979) Biochim. biophys. Acta 505,355–427PubMedCrossRefGoogle Scholar
  8. 8.
    Graan T. and Ort D.R. (1983) J.Bio. Chem. 258,2831–2836Google Scholar
  9. 9.
    Rich P.R. (1988) Biochim. Biophys. Acta 932,33–42CrossRefGoogle Scholar
  10. 10.
    Hope A.B. and Matthews D.B. (1987) Aust. J. Plant Physiol. 14, 29–46CrossRefGoogle Scholar
  11. 11.
    Peters R., van Kooten O. and Vredenberg W.J. (1984) FEBS Letters 177,11–16CrossRefGoogle Scholar
  12. 12.
    Remis D., Bulychev A.A. and Kurella G.A. (1986) Biochim. Biophys. Acta 852,67–73Google Scholar

Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • Huan-gen Ding
    • 1
  • Yun-kang Shen
    • 1
  1. 1.Shanghai Institute of Plant PhysiologyAcademia SinicaShanghaiChina

Personalised recommendations