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Measurement of Redox potentials of Functional Molecules in Photosystem Core Complexes

Research Project

Project/Area Number 19614003
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 光生命科学
Research InstitutionThe University of Tokyo

Principal Investigator

WATANABE Tadashi  The University of Tokyo, 生産技術研究所, 教授 (70092385)

Co-Investigator(Kenkyū-buntansha) YOSHIHARA Sachio  宇都宮大学, 工学研究科, 准教授 (70220712)
加藤 祐樹  東京大学, 生産技術研究所, 助教 (10376634)
Co-Investigator(Renkei-kenkyūsha) KATO Yuki  東京大学, 生産技術研究所, 助教 (10376634)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2008: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2007: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords光合成 / 分光電気化学計測 / レドックス電位 / 電子伝達 / 電荷分離 / 光化学系 / 分光電気化学測定
Research Abstract

酸素発生型光合成生物は、二つの光化学系の反応中心で一次電子供与体が電荷分離反応を引き起こし、続く一連の電子伝達により、光→化学エネルギー変換を行う。しかし、数十段階のエネルギー・電子伝達を経ながら量子収率100%という驚異の効率を支える機能分子間の電子エネルギー準位チューニングと、強力な酸化力を生み水から電子を引き抜く仕組みは大半がブラックボックスにとどまる。本研究は、その全容解明を目的に、機能分子のレドックス電位の精密計測を行った。

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (47 results)

All 2009 2008 2007 Other

All Journal Article (17 results) (of which Peer Reviewed: 11 results) Presentation (28 results) Remarks (2 results)

  • [Journal Article] Negative Shift of Chlorophyll a Oxidation Potential by Aggregation in Acetonitrile/Ionic Liuqid Mixed Solvents2009

    • Author(s)
      Y. Kuroiwa, Y. Kato, T. Watanabe
    • Journal Title

      J. Photochem. Photobiol. A 202

      Pages: 191-195

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Unique Photosystems in Acaryochloris marina2008

    • Author(s)
      M. Kobayashi, S. Ohashi, H. Miyashita, T. Watanabe
    • Journal Title

      Photosynth. Res 98

      Pages: 141-149

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] 光合成初期過程を駆動する分子部品のレドックス電位精密計測2008

    • Author(s)
      加藤祐樹, 仲村亮正, 渡辺 正
    • Journal Title

      光化学 39

      Pages: 205-208

    • NAID

      10024483459

    • Related Report
      2008 Final Research Report
  • [Journal Article] Characterization of Highly Purified Photosystem I Complexes form the Chlorophyll d-dominated Cyanobacterium Acaryochloris marina MBIC110172008

    • Author(s)
      T. Tomo, Y. Kato, T. Watanabe, 他
    • Journal Title

      J.Biol.Chem. 283

      Pages: 18198-18209

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Spectroelectrochemistry of Cytochrome b559 in the D1-D2-Cyt b559 Complex from Spinach2008

    • Author(s)
      T. Shibamoto, Y. Kato, T. Watanabe
    • Journal Title

      FEBS Lett 582

      Pages: 1490-1494

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Spectro- electrochemistry of P700 in Native Photosystem I Particles and Diethyl Ether-Treated Thylakoid Membranes from Spinach and Thermo- synechococcus elongatus2008

    • Author(s)
      Y. Zhang, A. Nakamura, Y. Kuroiwa, Y. Kato, T. Watanabe
    • Journal Title

      FEBS Lett 582

      Pages: 1123-1128

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Unexpected Difference in the P700 Redox Potential Among Oxygenic Photosynthetic Organisms Revealed by Spectroelectrochemistry2008

    • Author(s)
      Y. Kato, A. Nakamura, T. Suzawa, T. Watanabe
    • Journal Title

      Photosynthesis, Energy from the Sun, proceedings of 14^<th> International Congress on Photosynthesis

      Pages: 109-112

    • Related Report
      2008 Final Research Report
  • [Journal Article] Spectroelectrochemistry of P700 in Native Photosystem I Particles and Diethyl Etehr-Treated Thylakoid Membranes from Spinach and Thermosynechococcus elongatus2008

    • Author(s)
      張延栄,仲村亮正,黒岩善徳,加藤祐樹,渡辺正
    • Journal Title

      FEBS Letters 582

      Pages: 1123-1128

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spectroelectrochemistry of Cytochrome b559 in the D1-D2-Cyt b559 complex from spinach2008

    • Author(s)
      芝本匡雄,加藤祐樹,渡辺正
    • Journal Title

      FEBS Letters 582

      Pages: 1490-1494

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Characterization of Highly Purified Photosystem I Complexes form the ChlorophyII d-dominated Cyanobacterium Acaryochloris marina2008

    • Author(s)
      靹達也ら
    • Journal Title

      Journal of Biological Chemistry 283

      Pages: 1123-1128

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Unique Photosystems in Acaryochloris marina2008

    • Author(s)
      小林正美,大橋俊介,宮下英明,渡辺正
    • Journal Title

      Photosynthesis Research 283

      Pages: 141-149

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 光合成初期過程を駆動する分子部品のレドックス電位精密計測2008

    • Author(s)
      加藤祐樹,仲村亮正,渡辺正
    • Journal Title

      光化学 39

      Pages: 205-208

    • NAID

      10024483459

    • Related Report
      2008 Annual Research Report
  • [Journal Article] Spectroelectrochemistry of P700 in Native Photosystem I Particles and Diethyl Etehr-Treated Thylakoid Membranes from Spinach and Thermosynechococcus elongatus2008

    • Author(s)
      張延栄, 仲村亮正, 黒岩善徳, 加藤祐樹, 渡辺正
    • Journal Title

      FEBS Letters 582

      Pages: 1123-1128

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spectroelectrochemistry of Cytochrome b559 in the D1-D2-Cyt b559 complex from spinach2008

    • Author(s)
      芝本匡雄, 加藤祐樹, 渡辺正
    • Journal Title

      FEBS Letters 582

      Pages: 1490-1494

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Unexpected difference in the P700 redox potential among oxygenic photosynthetic organisms revealed by spectroelectrochemistry2008

    • Author(s)
      加藤祐樹, 仲村亮正, 須澤朋之, 渡辺正
    • Journal Title

      Photosynthesis, Energy from the Sun, proceedings of 14^<th> International Congress on Photosynthesis

      Pages: 109-112

    • Related Report
      2007 Annual Research Report
  • [Journal Article] Sensitization of Light-Induced Charge Separation in Photosystem I by Synthetic Fluorescent Dyes2008

    • Author(s)
      加藤祐樹, 仲村亮正, 須澤朋之, 渡辺正
    • Journal Title

      Photosynthesis, Energy from the Sun, proceedings of 14^<th> International Congress on Photosynthesis

      Pages: 1273-1276

    • Related Report
      2007 Annual Research Report
  • [Journal Article] 分光電気化学法を用いた光合成電子伝達成分の酸化還元電位計測2007

    • Author(s)
      加藤祐樹, 仲村亮正, 渡辺正
    • Journal Title

      光合成研究 17

      Pages: 63-73

    • Related Report
      2008 Final Research Report
  • [Presentation] Spectroelectrochemical Measurement of the Redox Potential of the Primary Electron Acceptor Pheophytin a in Photosystem II2009

    • Author(s)
      Yuki Kato, Miwa Sugiura, Tadashi Watanabe
    • Organizer
      215th Electrochemical Society Meeting
    • Place of Presentation
      San Francisco
    • Year and Date
      2009-05-26
    • Related Report
      2008 Final Research Report
  • [Presentation] Spectroelectrochemical investigation on the redox property of cytochrome b559 in photosystem II reaction center2009

    • Author(s)
      Tadao Shibamoto, Yuki Kato, Tadashi Watanabe
    • Organizer
      215th Electrochemical Society Meeting
    • Place of Presentation
      San Francisco
    • Year and Date
      2009-05-26
    • Related Report
      2008 Final Research Report
  • [Presentation] 珪藻の光化学系1における一次電子供与体P700の酸化還元特性2009

    • Author(s)
      加藤祐樹,渡邊悟志,仲村亮正,菓子野康浩,渡辺正
    • Organizer
      日本化学会第89春季年会
    • Place of Presentation
      日本大学(理工)
    • Year and Date
      2009-03-29
    • Related Report
      2008 Annual Research Report
  • [Presentation] 分光電気化学的手法によるThermosynechococcus elongatus 由来の光化学系II 一次電子受容体フェオフィチンa の酸化還元電位計測2009

    • Author(s)
      加藤祐樹, 杉浦美羽, 渡辺 正
    • Organizer
      第50回日本植物生理学会年会
    • Place of Presentation
      名古屋
    • Year and Date
      2009-03-21
    • Related Report
      2008 Final Research Report
  • [Presentation] 分光電気化学的手法によるThermosynechococcus elongatus由来の光化学系II一次電子受容体フェオフィチンaの酸化還元電位計測2009

    • Author(s)
      加藤祐樹,杉浦美羽,渡辺正
    • Organizer
      第50回日本植物生理学会年会
    • Place of Presentation
      名古屋大学
    • Year and Date
      2009-03-21
    • Related Report
      2008 Annual Research Report
  • [Presentation] 光合成光化学系IIコア複合体におけるシトクロムb559の酸化還元挙動2008

    • Author(s)
      藤田 舞、尾田晃伯、芝本匡雄、加藤祐樹、渡辺正
    • Organizer
      第2回日本化学会関東支部大会
    • Place of Presentation
      群馬大学
    • Year and Date
      2008-09-18
    • Related Report
      2008 Final Research Report
  • [Presentation] 光合成光化学系IIコア複合体におけるシトクロムb559の酸化還元挙2008

    • Author(s)
      藤田舞,尾田晃伯,芝本匡雄加藤祐樹,杉浦美羽,渡辺正
    • Organizer
      第2回日本化学会関東支部大会
    • Place of Presentation
      群馬大学
    • Year and Date
      2008-09-18
    • Related Report
      2008 Annual Research Report
  • [Presentation] Unexpected Differences in the P700 Redox Potential Among Photo system I of Oxygenic Photosynthetic Organisms2008

    • Author(s)
      仲村亮正,須澤朋之,加藤祐樹,渡辺正
    • Organizer
      17th International Confefence on Photochemic al Conversion and Storage of Solar Energy
    • Place of Presentation
      Sydney, Australia
    • Year and Date
      2008-07-28
    • Related Report
      2008 Annual Research Report
  • [Presentation] 分光電気化学的手法によるホウレンソウ由来の光化学系II反応中心複合体におけるシトクロムb559の酸化還元挙動観測2008

    • Author(s)
      芝本匡雄,黒岩善徳,加藤祐樹,渡辺正
    • Organizer
      光合成の色素系と反応中心に関するセミナー
    • Place of Presentation
      京都大学
    • Year and Date
      2008-06-15
    • Related Report
      2008 Annual Research Report 2007 Annual Research Report
  • [Presentation] 分光電気化学的手法によるThermosynechococcus elongatus由来の光化学系IIにおけるシトクロムb559の酸化還元挙動観測2008

    • Author(s)
      藤田舞,尾田晃伯,芝本匡雄,加藤祐樹,渡辺正
    • Organizer
      光合成の色素系と反応中心に関するセミナー
    • Place of Presentation
      京都大学
    • Year and Date
      2008-06-15
    • Related Report
      2008 Annual Research Report
  • [Presentation] 分光電気化学的手法による Thermosynechococcus elongatus 由来の光化学系IIにおけるシトクロムb559の酸化還元挙動観測2008

    • Author(s)
      藤田舞, 尾田晃伯, 芝本匡雄, 加藤祐樹, 渡辺正
    • Organizer
      光合成の色素系と反応中心に関するセミナー
    • Place of Presentation
      京都大学
    • Year and Date
      2008-06-15
    • Related Report
      2007 Annual Research Report
  • [Presentation] 分光電気化学的手法による光化学系II一次電子受容体フェオフィチンaのアニオンラジカルの生成および観測2008

    • Author(s)
      尾田晃伯、芝本匡雄、加藤祐樹、渡辺正
    • Organizer
      日本化学会第88春季年会
    • Place of Presentation
      立教大学
    • Year and Date
      2008-03-28
    • Related Report
      2008 Final Research Report
  • [Presentation] 光化学系II反応中心複合体におけるシトクロムb559の酸化還元電位のpH依存性2008

    • Author(s)
      芝本匡雄、黒岩善徳、加藤祐樹、渡辺正
    • Organizer
      日本化学会第88春季年会
    • Place of Presentation
      立教大学
    • Year and Date
      2008-03-27
    • Related Report
      2008 Final Research Report
  • [Presentation] 光化学系II反応中心複合体におけるシトクロムb559の酸化還元電位のpH依存性2008

    • Author(s)
      芝本匡雄, 黒岩善徳, 加藤祐樹, 渡辺正
    • Organizer
      第49回日本化学会年会
    • Place of Presentation
      立教大学
    • Year and Date
      2008-03-27
    • Related Report
      2007 Annual Research Report
  • [Presentation] 分光電気化学的手法による光化学系II補因子シトクロムb559の酸化還元挙動の観測2008

    • Author(s)
      藤田舞, 尾田晃伯, 芝本匡雄, 加藤祐樹, 渡辺正
    • Organizer
      第49回日本化学会年会
    • Place of Presentation
      立教大学
    • Year and Date
      2008-03-27
    • Related Report
      2007 Annual Research Report
  • [Presentation] 分光電気化学的手法によるAcaryochloris marinaの光化学系I一次電子供与体の酸化還元電位計測2008

    • Author(s)
      加藤祐樹、鞆 達也、仲村亮正、土屋 徹、三室守、渡辺正
    • Organizer
      第49回日本植物生理学会年会
    • Place of Presentation
      札幌
    • Year and Date
      2008-03-20
    • Related Report
      2008 Final Research Report
  • [Presentation] クロロフィルd を主要色素としてもつシアノバクテリアの光化学系Iのサブユニット組成と光化学反応の解析2008

    • Author(s)
      鞆 達也、加藤祐樹、鈴木健裕、秋本誠志、野口巧、土屋徹、堂前直、渡辺正、三室守
    • Organizer
      第49回日本植物生理学会年会
    • Place of Presentation
      札幌
    • Year and Date
      2008-03-20
    • Related Report
      2008 Final Research Report
  • [Presentation] 分光電気化学的手法による Acaryochloris marina の光化学系I一次電子供与体の酸化還元電位計測2008

    • Author(s)
      加藤祐樹, 鞆達也, 仲村亮正, 土屋徹, 三室守, 渡辺正
    • Organizer
      第49回日本植物生理学会年会
    • Place of Presentation
      札幌コンベンションセンター
    • Year and Date
      2008-03-20
    • Related Report
      2007 Annual Research Report
  • [Presentation] Differences in the Redox Potential and Spectroscopic Property of P700 in Oxygenic Photosynthetic Organisms2007

    • Author(s)
      Y. Kato, A. Nakamura, T. Suzawa, T. Watanabe
    • Organizer
      7th International Conference on Tetrapyrrole Photoreceptors in Photosynthetic Organisms
    • Place of Presentation
      Kyoto
    • Year and Date
      2007-12-11
    • Related Report
      2008 Final Research Report
  • [Presentation] The Characterization of Photosystems I and II in a Chlorophyll d-dominated Cyanobacterium2007

    • Author(s)
      T. Tomo, Y. Kato, S. Akimoto, T. Noguchi, T. Tsuchiya, T. Watanabe, M. Mimuro
    • Organizer
      7th International Conference on Tetrapyrrole Photoreceptors in Photosynthetic Organisms
    • Place of Presentation
      Kyoto
    • Year and Date
      2007-12-11
    • Related Report
      2008 Final Research Report
  • [Presentation] Redox Potential of Chl d in vitro2007

    • Author(s)
      S. Ohashi, M. Kasahara, S. Fukuyo, M. Nakazato, K. Iwamoto, Y. Shiraiwa, Y. Kato, T. Watanabe, M. Kobayashi
    • Organizer
      7th International Conference on Tetrapyrrole Photoreceptors in Photosynthetic Organisms
    • Place of Presentation
      Kyoto
    • Year and Date
      2007-12-11
    • Related Report
      2008 Final Research Report
  • [Presentation] The Characterization of Photosystems I and II in a Chlorophyll d-dominated Cyanobacterium2007

    • Author(s)
      鞆達也, 加藤祐樹, 秋本誠二, 野口巧, 土屋徹, 渡辺正, 三室守
    • Organizer
      7th International Conference on Tetrapyrrole Photoreceptors in Photosynthetic Organisms
    • Place of Presentation
      京都テルサ
    • Year and Date
      2007-12-10
    • Related Report
      2007 Annual Research Report
  • [Presentation] Fine Redox Potential Tuning among Chlorophylls and Mettaloproteins for Attaining the 100-% Quantum Yield in Charge Separartion and Subsequent Electrton Transfer of Photosynthetic Primary Processes2007

    • Author(s)
      Tadashi Watanabe
    • Organizer
      International Symposium on Metallomics
    • Place of Presentation
      Nagoya
    • Year and Date
      2007-11-25
    • Related Report
      2008 Final Research Report
  • [Presentation] Fine Redox Potential Tuning among Chlorophylls and Mettaloproteins for Attaining the 100-% Quantum Yield in Charge Separartion and Subsequent Electrton Transfer of Photosynthetic Primary Processes2007

    • Author(s)
      渡辺正
    • Organizer
      International Symposium on Metallomics 2007 (ISM 2007)
    • Place of Presentation
      名古屋国際会議場
    • Year and Date
      2007-11-25
    • Related Report
      2007 Annual Research Report
  • [Presentation] さまざまな光合成生物の光化学系IにおけるP700の酸化還元および分光特性2007

    • Author(s)
      加藤祐樹、仲村亮正、須澤朋之、山下麻美、渡辺正
    • Organizer
      第22回生体機能関連化学シンポジウム
    • Place of Presentation
      東北大学
    • Year and Date
      2007-09-28
    • Related Report
      2008 Final Research Report
  • [Presentation] 光化学系IIを構成する補因子シトクロムb559の酸化還元特性2007

    • Author(s)
      芝本匡雄、黒岩善徳、加藤祐樹、渡辺 正
    • Organizer
      第22回生体機能関連化学シンポジウム
    • Place of Presentation
      東北大学
    • Year and Date
      2007-09-28
    • Related Report
      2008 Final Research Report 2007 Annual Research Report
  • [Presentation] 分光電気化学的手法を用いたシトクロムb559のレドックス電位精密測定2007

    • Author(s)
      芝本匡雄, 黒岩善徳, 加藤祐樹, 渡辺正
    • Organizer
      電気化学秋季大会
    • Place of Presentation
      東京工業大学・大岡山キャンパス
    • Year and Date
      2007-09-19
    • Related Report
      2007 Annual Research Report
  • [Presentation] Unexpected Difference in the P700 Redox Potential among Oxygenic Photosynthetic Organisms Revealed by Spectroelectrochemistry2007

    • Author(s)
      Y. Kato, A. Nakamura, T. Suzawa, T. Watanabe
    • Organizer
      14th International Congress of Photosynthesis
    • Place of Presentation
      Glasgow(England)
    • Year and Date
      2007-07-14
    • Related Report
      2008 Final Research Report
  • [Remarks]

    • URL

      http://www.iis.u-tokyo.ac.jp/Labs/wata_lab/watanabej.html

    • Related Report
      2008 Final Research Report
  • [Remarks]

    • URL

      http://www.iis.u-tokyo.ac.jp/Labs/wata_lab/watanabej.html

    • Related Report
      2007 Annual Research Report

URL: 

Published: 2007-04-01   Modified: 2016-04-21  

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