Role of singlet oxygen in chloroplast to nucleus retrograde signaling in Chlamydomonas reinhardtii

Beat B. Fischer, Anja Krieger-Liszkay, Éva Hideg, Iva Šnyrychová, Manuela Wiesendanger, Rik I.L. Eggen

Research output: Contribution to journalArticle

94 Citations (Scopus)

Abstract

High light illumination of photosynthetic organisms stimulates the production of singlet oxygen by photosystem II and causes photooxidative stress. In Chlamydomonas reinhardtii, singlet oxygen also induces the expression of the nuclear-encoded glutathione peroxidase homologous gene GPXH. We provide evidence that singlet oxygen stimulates GPXH expression by activating a signaling mechanism outside the thylakoid membrane. Singlet oxygen from photosystem II could be detected with specific probes in the aqueous phase of isolated thylakoid suspensions and the cytoplasm of high light stressed cells. This indicates that singlet oxygen can stimulate a response farther from its production site than generally believed.

Original languageEnglish
Pages (from-to)5555-5560
Number of pages6
JournalFEBS letters
Volume581
Issue number29
DOIs
Publication statusPublished - Dec 11 2007

Keywords

  • Chlamydomonas reinhardtii
  • Glutathione peroxidase
  • Photoinhibition
  • Photosystem II
  • Signaling
  • Singlet oxygen

ASJC Scopus subject areas

  • Biophysics
  • Structural Biology
  • Biochemistry
  • Molecular Biology
  • Genetics
  • Cell Biology

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  • Cite this

    Fischer, B. B., Krieger-Liszkay, A., Hideg, É., Šnyrychová, I., Wiesendanger, M., & Eggen, R. I. L. (2007). Role of singlet oxygen in chloroplast to nucleus retrograde signaling in Chlamydomonas reinhardtii. FEBS letters, 581(29), 5555-5560. https://doi.org/10.1016/j.febslet.2007.11.003