Phosphatidylglycerol Is Essential for Oligomerization of Photosystem I Reaction Center

• Ildikó Domonkos

  Institute of Plant Biology, Biological Research Center of the Hungarian Academy of Sciences, H–6701 Szeged, Hungary (I.D., A.S., L.K., B.U., B.B., M.K., Z.G.); Department of Plant Physiology and Biochemistry, Faculty of Biotechnology, Jagiellonian University, PL–30–387 Krakow, Poland (P.M., K.S.); Division of Material Science (Physics), Graduate School of Science, Nagoya University, Furocho, Chik

• Przemyslaw Malec

  Institute of Plant Biology, Biological Research Center of the Hungarian Academy of Sciences, H–6701 Szeged, Hungary (I.D., A.S., L.K., B.U., B.B., M.K., Z.G.); Department of Plant Physiology and Biochemistry, Faculty of Biotechnology, Jagiellonian University, PL–30–387 Krakow, Poland (P.M., K.S.); Division of Material Science (Physics), Graduate School of Science, Nagoya University, Furocho, Chik

• Anna Sallai

  Institute of Plant Biology, Biological Research Center of the Hungarian Academy of Sciences, H–6701 Szeged, Hungary (I.D., A.S., L.K., B.U., B.B., M.K., Z.G.); Department of Plant Physiology and Biochemistry, Faculty of Biotechnology, Jagiellonian University, PL–30–387 Krakow, Poland (P.M., K.S.); Division of Material Science (Physics), Graduate School of Science, Nagoya University, Furocho, Chik

• László Kovács

  Institute of Plant Biology, Biological Research Center of the Hungarian Academy of Sciences, H–6701 Szeged, Hungary (I.D., A.S., L.K., B.U., B.B., M.K., Z.G.); Department of Plant Physiology and Biochemistry, Faculty of Biotechnology, Jagiellonian University, PL–30–387 Krakow, Poland (P.M., K.S.); Division of Material Science (Physics), Graduate School of Science, Nagoya University, Furocho, Chik

• Kunihiro Itoh

  Institute of Plant Biology, Biological Research Center of the Hungarian Academy of Sciences, H–6701 Szeged, Hungary (I.D., A.S., L.K., B.U., B.B., M.K., Z.G.); Department of Plant Physiology and Biochemistry, Faculty of Biotechnology, Jagiellonian University, PL–30–387 Krakow, Poland (P.M., K.S.); Division of Material Science (Physics), Graduate School of Science, Nagoya University, Furocho, Chik

• Gaozhong Shen

  Institute of Plant Biology, Biological Research Center of the Hungarian Academy of Sciences, H–6701 Szeged, Hungary (I.D., A.S., L.K., B.U., B.B., M.K., Z.G.); Department of Plant Physiology and Biochemistry, Faculty of Biotechnology, Jagiellonian University, PL–30–387 Krakow, Poland (P.M., K.S.); Division of Material Science (Physics), Graduate School of Science, Nagoya University, Furocho, Chik

• Bettina Ughy

  Institute of Plant Biology, Biological Research Center of the Hungarian Academy of Sciences, H–6701 Szeged, Hungary (I.D., A.S., L.K., B.U., B.B., M.K., Z.G.); Department of Plant Physiology and Biochemistry, Faculty of Biotechnology, Jagiellonian University, PL–30–387 Krakow, Poland (P.M., K.S.); Division of Material Science (Physics), Graduate School of Science, Nagoya University, Furocho, Chik

• Balázs Bogos

  Institute of Plant Biology, Biological Research Center of the Hungarian Academy of Sciences, H–6701 Szeged, Hungary (I.D., A.S., L.K., B.U., B.B., M.K., Z.G.); Department of Plant Physiology and Biochemistry, Faculty of Biotechnology, Jagiellonian University, PL–30–387 Krakow, Poland (P.M., K.S.); Division of Material Science (Physics), Graduate School of Science, Nagoya University, Furocho, Chik

• Isamu Sakurai

  Institute of Plant Biology, Biological Research Center of the Hungarian Academy of Sciences, H–6701 Szeged, Hungary (I.D., A.S., L.K., B.U., B.B., M.K., Z.G.); Department of Plant Physiology and Biochemistry, Faculty of Biotechnology, Jagiellonian University, PL–30–387 Krakow, Poland (P.M., K.S.); Division of Material Science (Physics), Graduate School of Science, Nagoya University, Furocho, Chik

• Mihály Kis

  Institute of Plant Biology, Biological Research Center of the Hungarian Academy of Sciences, H–6701 Szeged, Hungary (I.D., A.S., L.K., B.U., B.B., M.K., Z.G.); Department of Plant Physiology and Biochemistry, Faculty of Biotechnology, Jagiellonian University, PL–30–387 Krakow, Poland (P.M., K.S.); Division of Material Science (Physics), Graduate School of Science, Nagoya University, Furocho, Chik

• Kazimierz Strzalka

  Institute of Plant Biology, Biological Research Center of the Hungarian Academy of Sciences, H–6701 Szeged, Hungary (I.D., A.S., L.K., B.U., B.B., M.K., Z.G.); Department of Plant Physiology and Biochemistry, Faculty of Biotechnology, Jagiellonian University, PL–30–387 Krakow, Poland (P.M., K.S.); Division of Material Science (Physics), Graduate School of Science, Nagoya University, Furocho, Chik

• Hajime Wada

  Institute of Plant Biology, Biological Research Center of the Hungarian Academy of Sciences, H–6701 Szeged, Hungary (I.D., A.S., L.K., B.U., B.B., M.K., Z.G.); Department of Plant Physiology and Biochemistry, Faculty of Biotechnology, Jagiellonian University, PL–30–387 Krakow, Poland (P.M., K.S.); Division of Material Science (Physics), Graduate School of Science, Nagoya University, Furocho, Chik

• Shigeru Itoh

  Institute of Plant Biology, Biological Research Center of the Hungarian Academy of Sciences, H–6701 Szeged, Hungary (I.D., A.S., L.K., B.U., B.B., M.K., Z.G.); Department of Plant Physiology and Biochemistry, Faculty of Biotechnology, Jagiellonian University, PL–30–387 Krakow, Poland (P.M., K.S.); Division of Material Science (Physics), Graduate School of Science, Nagoya University, Furocho, Chik

• Tibor Farkas

  Institute of Plant Biology, Biological Research Center of the Hungarian Academy of Sciences, H–6701 Szeged, Hungary (I.D., A.S., L.K., B.U., B.B., M.K., Z.G.); Department of Plant Physiology and Biochemistry, Faculty of Biotechnology, Jagiellonian University, PL–30–387 Krakow, Poland (P.M., K.S.); Division of Material Science (Physics), Graduate School of Science, Nagoya University, Furocho, Chik

• Zoltán Gombos

  Institute of Plant Biology, Biological Research Center of the Hungarian Academy of Sciences, H–6701 Szeged, Hungary (I.D., A.S., L.K., B.U., B.B., M.K., Z.G.); Department of Plant Physiology and Biochemistry, Faculty of Biotechnology, Jagiellonian University, PL–30–387 Krakow, Poland (P.M., K.S.); Division of Material Science (Physics), Graduate School of Science, Nagoya University, Furocho, Chik

抄録

Our earlier studies with the pgsA mutant of Synechocystis PCC6803 demonstrated the important role of phosphatidylglycerol (PG) in PSII dimer formation and in electron transport between the primary and secondary electron-accepting plastoquinones of PSII. Using a long-term depletion of PG from pgsA mutant cells, we could induce a decrease not only in PSII but also in PSI activity. Simultaneously with the decrease in PSI activity, dramatic structural changes of the PSI complex were detected. A 21-d PG depletion resulted in the degradation of PSI trimers and concomitant accumulation of monomer PSI. The analyses of PSI particles isolated by MonoQ chromatography showed that, following the 21-d depletion, PSI trimers were no longer detectable in the thylakoid membranes. Immunoblot analyses revealed that the PSI monomers accumulating in the PG-depleted mutant cells do not contain PsaL, the protein subunit thought to be responsible for the trimer formation. Nevertheless, the trimeric structure of PSI reaction center could be restored by readdition of PG, even in the presence of the protein synthesis inhibitor lincomycin, indicating that free PsaL was present in thylakoid membranes following the 21-d PG depletion. Our data suggest an indispensable role for PG in the PsaL-mediated assembly of the PSI reaction center.

収録刊行物

• Plant Physiology

  Plant Physiology 134 (4), 1471-1478, 2004-04-01

  Oxford University Press (OUP)

キーワード

• Plant Science
• Genetics
• Physiology

詳細情報

• CRID: 1363388844609043328
• NII論文ID: 80016635437
• DOI: 10.1104/pp.103.037754
• ISSN: 15322548
• ISSN: 00320889
• Web Site: http://academic.oup.com/plphys/article-pdf/134/4/1471/38702358/plphys_v134_4_1471.pdf
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