Energy flow in the light harvesting complex revealed by pre-excitation of the energy accepter

• Project/Area Number: 22740271
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Biophysics/Chemical physics
• Research Institution: Osaka University
• Principal Investigator: NAKAMURA Ryosuke 大阪大学, 産学連携本部, 特任講師 (70379147)
• Project Period (FY): 2010 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2010: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 超高速分光 / 光合成 / エネルギー移動

Research Abstract

We performed femtosecond transient absorption spectroscopy combined with pre-excitation of bacteriochlorophyll(BChl) in the LH1complex from Rhodospirillum rubrum S1. We observed that the energy flow from S_1to S* occurs only when nearby BChl is excited into Q_y. In addition, we observed an increase in triplet formation as the S* population increased, indicating that S* is an electronic excited state that is the precursor to triplet formation.

Research Products

• [Journal Article] Femtosecond stimulated Raman spectroscopy of the dark S_1excited state of carotenoid in photosynthetic light harvesting complex (2012)
  • Author(s): M. Yoshizawa, R. Nakamura, O. Yoshimitsu, K. Abe, S. Sakai, K. Nakagawa, R. Fujii, M. Nango, H. Hashimoto
  • Journal Title: Acta Biochim Pol Volume: 59 Pages: 49-52
  • Peer Reviewed
• [Journal Article] Formation Mechanism of Dark Excited State (S^*) of Carotenoid in Light-Harvesting Complex (2012)
  • Author(s): 中村亮介, 中川勝統, 南後守, 橋本秀樹, 吉澤雅幸
  • Journal Title: Carotenoid Science Volume: 16(印刷中)
  • Peer Reviewed
• [Journal Article] Femtosecond stimulated Raman spectroscopy of the dark S_1 excited state of carotenoid in photosynthetic light harvesting (2012)
  • Author(s): 吉澤雅幸, 中村亮介, 吉松織優, 阿部健太, 酒井俊亮, 中川勝統, 藤井律子, 南後守, 橋本秀樹
  • Journal Title: Acta Biochim Pol Volume: 29 Pages: 49-52
  • Peer Reviewed
• [Journal Article] Dark excited states of carotenoid regulated by bacteriochlorophyll in photosynthetic light harvesting (2011)
  • Author(s): R. Nakamura, K. Nakagawa, M. Nango, H. Hashimoto, M. Yoshizawa
  • Journal Title: J. Phys. Chem Volume: B115 Pages: 3233-3239
  • Peer Reviewed
• [Journal Article] Energy flow in the light harvesting complex manipulated by pre-excitation of the energy accepter (2011)
  • Author(s): R. Nakamura, Y. Yoshioka, K. Abe, S. Sakai, K. Nakagawa, M. Nango, H. Hashimoto, M. Yoshizawa
  • Journal Title: Ultrafast Phenomena XVII, Eds. Pages: 598-600
• [Journal Article] Coherent control of the selected excited state by two-color multipulse excitation (2011)
  • Author(s): K. Abe, R. Nakamura, Hashimoto, M. Yoshizawa
  • Journal Title: Ultrafast Phenomena XVII, Eds. Pages: 793-795
• [Journal Article] Dark excited states of carotenoid regulated by bacteriochlorophyll in photosynthetic light harvesting (2011)
  • Author(s): 中村亮介, 中川勝統, 南後守, 橋本秀樹, 吉澤雅幸
  • Journal Title: Journal of Physical Chemistry B Volume: 115 Pages: 3233-3239
  • Peer Reviewed
• [Journal Article] Energy flow in the light harvesting complex manipulated by pre-excitation of the energy accepter (2011)
  • Author(s): 中村亮介, 吉岡拓也, 阿部健太, 酒井俊亮, 中川勝統, 南後守, 橋本秀樹, 吉澤雅幸
  • Journal Title: Ultrafast Phenomena XVII, Oxford University Press Pages: 598-600
• [Journal Article] Coherent control of the selected excited state by two-color multipulse excitation (2011)
  • Author(s): 阿部健太, 中村亮介, 橋本秀樹, 吉澤雅幸
  • Journal Title: Ultrafast Phenomena XVII, Oxford University Press Pages: 793-795
• [Journal Article] Energy transfer dynamics in the reconstituted light-harvesting complex explored by multi-pulse excitation (2010)
  • Author(s): R. Nakamura, K. Nakagawa, K. Abe, H. Hashimoto, M. Nango, M. Yoshizawa
  • Journal Title: Carotenoid Sci Volume: 15 Pages: 59-62
  • Peer Reviewed
• [Journal Article] Mutual energy transfer between carotenoid and bacteriochlorophyll in the LH1 complex from photosynthetic bacteria (2010)
  • Author(s): T. Yoshioka, Y. Liu, K. Abe, R. Nakamura, R. Fujii, H. Hashimoto, M. Yoshizawa
  • Journal Title: Carotenoid Sci Volume: 15 Pages: 56-58
  • Peer Reviewed
• [Journal Article] Ultrafast relaxation kinetics inβ-carotene homologs having different methyl side groups (2010)
  • Author(s): Y. Iwabuchi, K. Abe, R. Nakamura, D. Kosumi, M. Fujiwara, R. Fujii, H. Hashimoto, M. Yoshizawa
  • Journal Title: Carotenoid Sci Volume: 15 Pages: 26-29
  • Peer Reviewed
• [Journal Article] Energy transfer dynamics in the reconstituted light-harvesting complex explored by multi-pulse excitation (2010)
  • Author(s): 中村亮介, 中川勝統, 阿部健太, 南後守, 橋本秀樹, 吉澤雅幸
  • Journal Title: Carotenoid Science Volume: 15 Pages: 59-62
  • Peer Reviewed
• [Journal Article] Mutual energy transfer between carotenoid and bacteriochlorophyll in the LH1 complex from photosynthetic bacteria (2010)
  • Author(s): 吉岡拓也, Liu Yinan, 阿部健太, 中村亮介, 藤井律子, 橋本秀樹, 吉澤雅幸
  • Journal Title: Carotenoid Science Volume: 15 Pages: 56-58
  • Peer Reviewed
• [Journal Article] Ultrafast relaxation kinetics in ss-carotene homologs having different methyl side groups (2010)
  • Author(s): 岩渕泰徳, 阿部健太, 中村亮介, 小澄大輔, 藤原正澄, 藤井律子, 橋本秀樹, 吉澤雅幸
  • Journal Title: Carotenoid Science Volume: 15 Pages: 26-29
  • Peer Reviewed
• [Presentation] 共鳴フェムト秒誘導ラマン分光による光合成色素蛋白複合体内のカロテノイドの光学的禁制励起状態の研究 (2012)
  • Author(s): 吉松織優, 阿部健太, 中村亮介, 酒井俊亮, 堀部智子, 藤井律子, 南後守, 橋本秀樹, 吉澤雅幸
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学
• [Presentation] 光受容蛋白質における光異性化構造ダイナミクスの研究 (2012)
  • Author(s): 中村亮介, 濱田格雄, 兼松泰男, 阿部健太, 吉澤雅幸
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学
• [Presentation] 共鳴フェムト秒誘導ラマン分光による励起状態振動の研究 (2012)
  • Author(s): 阿部健太, 吉松織優, 中村亮介, 橋本秀樹, 吉澤雅幸
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学
• [Presentation] Dark excited states of carotenoid in photosynthetic light harvesting complex studied by multi-pump spectroscopy (2011)
  • Author(s): 吉澤雅幸, 中村亮介, 吉松織優, 阿部健太, 酒井俊亮, 中川勝統, 南後守, 橋本秀樹
  • Organizer: The 16th International Symposium on Carotenoids
  • Place of Presentation: Krakow, Poland
  • Year and Date: 2011-07-18
• [Presentation] Resonant stimulated Raman spectroscopy of the S1 and S^* excited states of carotenoids in light-harvesting complex (2011)
  • Author(s): 吉松織優, 阿部健太, 中村亮介, 酒井俊亮, 中川勝統, 南後守, 橋本秀樹, 吉澤雅幸
  • Organizer: The 15th Conference on Timeresolved Vibrational Spectroscopy (TRVS XV)
  • Place of Presentation: Ascona, Switzerland
  • Year and Date: 2011-06-21
• [Presentation] Stimulated Raman spectroscopy of the electronic excited state of Photoactive Yellow Protein (2011)
  • Author(s): 中村亮介, 濱田格雄, 兼松泰男, 阿部健太, 吉澤雅幸
  • Organizer: The 15th Conference on Timeresolved Vibrational Spectroscopy (TRVS XV)
  • Place of Presentation: Ascona, Switzerland
  • Year and Date: 2011-06-20
• [Presentation] フェムト秒誘導ラマン分光による光受容蛋白質の光異性化反応の研究 (2011)
  • Author(s): 中村亮介, 濱田格雄, 兼松泰男, 阿部健太, 吉澤雅幸
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学
• [Presentation] フェムト秒近赤外光から波形制御中赤外光への高効率変換のための分極反転構造 (2011)
  • Author(s): 中村亮介, 市田秀樹, 兼松泰男
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学
• [Presentation] 共鳴フェムト秒誘導ラマン分光によるカロテノイドの光学的禁制励起状態の研究 (2011)
  • Author(s): 吉松織優, 中村亮介, 酒井俊亮, 中川勝統, 南後守, 橋本秀樹, 吉澤雅幸
  • Organizer: 第25回カロテノイド研究談話会
  • Place of Presentation: つくば国際会議場
• [Presentation] Dark excited states of carotenoid in photosynthetic light harvesting complex studied by multi-pump spectroscopy (2011)
  • Author(s): M. Yoshizawa, R. Nakamura, O. Yoshimatsu, K. Abe, S. Sakai, K. Nakagawa, M. Nango, and H. Hashimoto
  • Organizer: The16th International Symposium on Carotenoids
  • Place of Presentation: Krakow, Poland
• [Presentation] Stimulated Raman spectroscopy of the electronic excited state of Photoactive Yellow Protein (2011)
  • Author(s): R. Nakamura, N. Hamada, Y. Kanematsu, K. Abe, and M. Yoshizawa
  • Organizer: The15th Conference on Timeresolved Vibrational Spectroscopy(TRVS XV)
  • Place of Presentation: Ascona, Switzerland
• [Presentation] Resonant stimulated Raman spectroscopy of the S1 and S* excited states of carotenoids in light-harvesting complex (2011)
  • Author(s): O. Yoshimatsu, K. Abe, R. Nakamura, S. Sakai, K. Nakagawa, M. Nango, H. Hashimoto, and M. Yoshizawa
  • Organizer: The15th Conference on Timeresolved Vibrational Spectroscopy(TRVS XV)
  • Place of Presentation: Ascona, Switzerland
• [Presentation] 共鳴フェムト秒誘導ラマン分光による光合成色素タンパク複合体内のカロテノイド励起状態の研究 (2011)
  • Author(s): 吉松織優, 中村亮介, 酒井俊亮, 中川勝統, 南後守, 橋本秀樹, 吉澤雅幸
  • Organizer: 日本物理学会第66回年次大会
  • Place of Presentation: 新潟大学
• [Presentation] マルチパルス光を用いた色素蛋白複合体内のカロテノイドの研究 (2010)
  • Author(s): 中村亮介
  • Organizer: 2010年カロテノイド若手の会
  • Place of Presentation: 箱根路開雲
  • Year and Date: 2010-12-20
• [Presentation] 光合成アンテナ複合体におけるカロテノイドのダーク準位(S^*) (2010)
  • Author(s): 中村亮介, 中川勝統, 南後守, 橋本秀樹, 吉澤雅幸
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2010-09-25
• [Presentation] 光合成アンテナ複合体LH1におけるカロテノイド光学禁制準位(S^*)の生成機構 (2010)
  • Author(s): 中村亮介, 中川勝統, 南後守, 橋本秀樹, 吉澤雅幸
  • Organizer: 第24回カロテノイド研究談話会
  • Place of Presentation: 徳島大学附属病院
  • Year and Date: 2010-09-14
• [Presentation] Coherent control of the selected excited state by two-color multipulse excitation (2010)
  • Author(s): 阿部健太, 中村亮介, 橋本秀樹, 吉澤雅幸
  • Organizer: 7th International Conference on Ultrafast Phenomena
  • Place of Presentation: Snowmass Village, CO, USA
  • Year and Date: 2010-07-20
• [Presentation] Energy flow in the light harvesting complex manipulated bypre-excitation of the energy accepter (2010)
  • Author(s): 中村亮介, 吉岡拓也, 阿部健太, 酒井俊亮, 中川勝統, 南後守, 橋本秀樹, 吉澤雅幸
  • Organizer: 17th International Conference on Ultrafast Phenomena
  • Place of Presentation: Snowmass Village, CO, USA
  • Year and Date: 2010-07-19
• [Presentation] 光合成アンテナ複合体におけるカロテノイドのダーク準位(S*) (2010)
  • Author(s): 中村亮介, 中川勝統, 南後守, 橋本秀樹, 吉澤雅幸
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 大阪府立大学
• [Presentation] Multi-Color光励起によるカロテノイドの振動制御 (2010)
  • Author(s): 阿部健太, 中村亮介, 橋本秀樹, 吉澤雅幸
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 大阪府立大学
• [Presentation] 中心金属が異なるバクテリオクロロフィルを再会合した光合成アンテナ複合体のエネルギー移動 (2010)
  • Author(s): 吉岡拓也, 中村亮介, 中川勝統, 南後守, 橋本秀樹, 吉澤雅幸
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 大阪府立大学
• [Presentation] 共鳴フェムト秒誘導ラマン分光によるカロテノイド励起状態の研究 (2010)
  • Author(s): 吉松織優、阿部健太, 中村亮介, 橋本秀樹, 吉澤雅幸
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 大阪府立大学
• [Presentation] Energy flow in the light harvesting complex manipulated by pre-excitation of the energy accepter (2010)
  • Author(s): R. Nakamura, T. Yoshioka, K. Abe, S. Sakai, K. Nakagawa, M. Nango, H. Hashimoto, M. Yoshizawa
  • Organizer: 17th International Conference on Ultrafast Phenomena
  • Place of Presentation: Snowmass Village, CO, USA
• [Presentation] Coherent control of the selected excited state by two-color multipulse excitation (2010)
  • Author(s): K. Abe, R. Nakamura, H. Hashimoto, M. Yoshizawa
  • Organizer: 17th International Conference on Ultrafast Phenomena
  • Place of Presentation: held in Snowmass Village, CO, USA
• [Presentation] 光合成アンテナ複合体LH1におけるカロテノイド光学禁制準位(S*)の生成機構 (2010)
  • Author(s): 中村亮介, 中川勝統, 南後守, 橋本秀樹, 吉澤雅幸
  • Organizer: 第24回カロテノイド研究談話会
  • Place of Presentation: 徳島大学附属病院
• [Presentation] 異なる色素を再会合した光合成アンテナ複合体のエネルギー移動 (2010)
  • Author(s): 吉岡拓也, 中村亮介, 中川勝統, 南後守, 橋本秀樹, 吉澤雅幸
  • Organizer: 第24回カロテノイド研究談話会
  • Place of Presentation: 徳島大学附属病院