Research of the novelty and universal mechanism of photosystem II by the chlorophyll d having cyanobacteria
Project/Area Number |
21570038
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Plant molecular biology/Plant physiology
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Research Institution | Tokyo University of Science |
Principal Investigator |
TOMO Tatsuya 東京理科大学, 理学部, 准教授 (60300886)
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Project Period (FY) |
2009 – 2011
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Project Status |
Completed (Fiscal Year 2011)
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Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
|
Keywords | 光化学系II / クロロフィル / 酸化還元電位 / 光合成 / 光化学系 / シアノバクテリア / クロロフィルd |
Research Abstract |
A. marina is a photosynthetic cyanobacterium in which chlorophyll(Chl) d is the major antenna pigment. Chl d absorbs light with a wavelength up to 30 nm red-shifted from Chl a. Therefore, if Chl d was the special pair component, the overall energetics must be different in A. marina. We performed direct measurements of the redox potential of primary and secondary electron donor using purified Acaryochloris PS II and the Chl a-type PS II. We obtained positive potential shits for A. marina in PS II complexes. The difference in the redox potential of electron donors between the two species closely corresponded to the difference in the light energy absorbed by Chl a versus Chl d. These finding indicate that changes in Chl species modulates a specific potential change in reduction side in PS II.
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Report
(4 results)
Research Products
(96 results)
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[Journal Article] Molecular environments of divinyl chlorophylls in Prochlorococcus and Synechocystis : Differences in fluorescence properties with chlorophyll replacement2011
Author(s)
Mimuro, M., Murakami, A., Tomo, T., Tsuchiya, T., Watabe, K., Yokono, M., Akimoto, S.
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Journal Title
Biochim.Biophys.Acta
Volume: 1807
Pages: 471-481
Related Report
Peer Reviewed
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[Journal Article] Binding and Functional Properties of Five Extrinsic Proteins in Oxygen-evolving Photosystem II from a Marine Centric Diatom2010
Author(s)
Ryo Nagao, Akira Moriguchi, Tatsuya Tomo, Ayako Niikura, Saori Nakajima, Takehiro Suzuki, Akinori Okumura, Masako Iwai, Jian-Ren Shen, Masahiko Ikeuchi, Isao Enami
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Journal Title
J. Bio. Chem
Volume: 285
Pages: 29191-29199
Related Report
Peer Reviewed
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[Journal Article] Purification and characterization of a stable oxygen-evolving Photosystem II complex from a marine centric diatom, Chaetoceros gracilis2010
Author(s)
Ryo Nagao, Tatsuya Tomo, Eri Noguchi, Saori Nakajima, Takehiro Suzuki, Akinori Okumura, Yasuhiro Kashino, Mamoru Mimuro, Masahiko Ikeuchi, Isao Enami
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Journal Title
Biochim. Biophys. Acta
Volume: 1797
Pages: 160-166
Related Report
Peer Reviewed
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[Journal Article] Binding and functional properties of five extrinsic proteins in oxygen-evolving Photosystem II from a marine centric diatom, Chaetoceros gracilis2010
Author(s)
Nagao, R., Moriguchi, A., Tomo, T., Niikura, A., Nakajima, S., Suzuki, T., Okumura, A., Iwai, M., Shen, J.-R., Ikeuchi, M., Enami, I.
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Journal Title
J.Biol.Chem.
Volume: 285
Pages: 29191-29199
Related Report
Peer Reviewed
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[Journal Article] Species-dependence of the redox potential of the primary quinone electron acceptor Q_A in photosystem II verified by spectroelectrochemistry2010
Author(s)
Shibamoto, T., Kato, Y., Nagao, R., Yamazaki, T., Tomo, T., Watanabe T.
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Journal Title
FEBS Letters
Volume: 584
Pages: 1526-1530
Related Report
Peer Reviewed
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[Journal Article] Topological Analysis of the Extrinsic PsbO, PsbP and PsbQ Proteins in a Green Algal PSII Complex by Cross-Linking with a Water-Soluble Carbodiimide2010
Author(s)
Nagao, R., Suzuki, T., Okumura, A., Niikura, A., Iwai, M., Dohmae, N., Tomo, T., Shen, J.-R., Ikeuchi, M., Enami, I.
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Journal Title
Plant Cell Physiology
Volume: 51
Pages: 718-727
NAID
Related Report
Peer Reviewed
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[Journal Article] Purification and characterization of a stable oxygen-evolving Photosystem II complex from a marine centric diatom, Chaetoceros gracilis2010
Author(s)
Ryo Nagao, Tatsuya Tomo, Eri Noguchi, Saori Nakajima, Takehiro Suzuki, Akinori Okumura, Yasuhiro Kashino, Mamoru Mimuro, Masahiko Ikeuchi, Isao Enami
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Journal Title
BIOCHIMICA ET BIOPHYSICA ACTA-BIOENER GETICS 1797
Pages: 160-166
Related Report
Peer Reviewed
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[Presentation] 耐酸性を担う Cyanidioshyzon merolae の遺伝子を導入したラン色細菌 Thermosynechococcus elongatus の耐酸性獲得2009
Author(s)
長尾遼, 岩井雅子, 松本ゆり, 妹尾聡子, 奥村彰規, 鈴木健裕, 緑川貴文, 河野祐介, 三角修己, 鞆達也, 黒岩常祥, 池内昌彦, 榎並勲
Organizer
日本植物学会第73回大会
Place of Presentation
山形大学
Related Report
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