Theoretical study on trapping, transfer and fixation of solar radiation energy in photosynthesis of higher plants

高等植物光合作用捕获、转移和固定太阳辐射能的理论研究

基本信息

  • 批准号:
    15540389
  • 负责人:
  • 金额:
    $ 1.6万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
  • 财政年份:
    2003
  • 资助国家:
    日本
  • 起止时间:
    2003 至 2005
  • 项目状态:
    已结题

项目摘要

In research of biological processes, it is an important step to clarify the structure of biological polymers and their arrangement in proteins. In photosynthesis, it was only recent, after 1984, that 3-d structures of protein-pigment complexes in photosystems of photosynthetic bacteria were first clarified. Since then, research of photosynthesis has greatly been developed. Photosynthesis by these bacteria, however, uses substances like H2S, but H2O, as starting materials, and hence does not evolve oxygen. Accordingly, it had been awaited to clarify 3-d structures of protein-pigment complexes participating in oxygen-evolving photosynthesis by higher plants. It was finally achieved since 2001.However, a big issue reveals itself. Organisms participating in the initial processes of photosynthesis are the reaction center and the antenna system, in which the core antenna encloses most closely the reaction center. It was clarified that the arrangement of pigments in the core antenna is very d … More ifferent between anoxygenic and oxygenic kinds of photosynthesis, although that in the reaction center is similar between them. It has been accepted that these two kinds of photosynthesis have evolved from a common ancestor, departing from each other. Therefore, the most important processes essential in photosynthesis should be nearly common between these two kinds of photosynthesis. This cannot be understood from the structure of the reaction center ant the antenna system.As the most important achievement of the present work, it was clarified that the mechanism for trapping of pigment excitation energies from the core antenna by the reaction center, quickly followed by the initial fixation of excitation energies into the charge-separated state in the reaction center, is conserved between the two kinds of photosynthesis. This reaction is most important in the whole of the initial photosynthetic processes, limiting it, and photosynthesis would become difficult if this reaction mechanism was changed essentially. Accordingly, it must be conserved in evolution. In other words, the present work clarified the mechanism of the most important reaction in the whole of the initial photosynthetic processes, Less
在生物过程的研究中,弄清生物聚合物的结构及其在蛋白质中的排列是一个重要的步骤。在光合作用方面,直到1984年以后,才首次阐明了光合细菌光系统中蛋白质-色素复合物的三维结构。从那时起,光合作用的研究得到了很大的发展。然而,这些细菌的光合作用使用H2S等物质作为起始材料,而不是H2O,因此不会释放氧气。因此,人们一直期待着阐明参与高等植物放氧光合作用的蛋白质-色素复合物的三维结构。2001年,这一目标终于实现了。参与光合作用初始过程的生物体是反应中心和天线系统,其中核心天线最紧密地包围反应中心。阐明了核天线中色素的排列是非常复杂的 ...更多信息 缺氧光合作用与有氧光合作用的反应中心的光合作用是相似的,但两者的光合作用方式不同。人们已经接受这两种光合作用是从一个共同的祖先进化而来的,彼此分离。因此,光合作用中最重要的基本过程应该在这两种光合作用中几乎是共同的。作为本工作的最重要的成果,阐明了反应中心捕获来自核心天线的色素激发能,然后迅速将激发能固定到反应中心的电荷分离态的机制在两种光合作用之间是守恒的。这一反应在整个初始光合过程中是最重要的,限制了它,如果这一反应机制从根本上改变,光合作用将变得困难。因此,它必须在进化中被保存。换句话说,本工作阐明了整个初始光合过程中最重要的反应的机制,

项目成果

期刊论文数量(53)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Detection of the Upper Edge of Exciton Multiplets in the Antenna Complexes LH1 and LH2 of Bacterial Photosynthesis
细菌光合作用天线复合体LH1和LH2中激子多重态上边缘的检测
  • DOI:
  • 发表时间:
    2003
  • 期刊:
  • 影响因子:
    0
  • 作者:
    H.Sumi;K.Mukai
  • 通讯作者:
    K.Mukai
Path-integral Monte Carlo Calculation of Reaction-Diffusion Equation
反应扩散方程的路径积分蒙特卡罗计算
  • DOI:
  • 发表时间:
    2003
  • 期刊:
  • 影响因子:
    0
  • 作者:
    K.Ando;H.Sumi
  • 通讯作者:
    H.Sumi
Physics and evolution in initial processes of photosynthesis ; solar-energy harvesting, excitation-energy transfer and its initial fixation
光合作用初始过程中的物理和进化;
N.Aratani(第1著者のみ記載): "Efficient excitation energy transfer in long meso-meso linked Zn(II) porphyrin arrays bearing a5, 15-bisphenylethynylated Zn(II)porphyrin acceptor"J.Am.Chem.Soc.. 125. 9668 (2003)
N.Aratani(仅由第一作者列出):“带有 5,15-双苯基乙炔基化 Zn(II) 卟啉受体的长介观-介观连接 Zn(II) 卟啉阵列中的有效激发能量转移”J.Am.Chem.Soc。 125.9668(2003)
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
Photosynthesis ; Fundamental Aspects to Global Perspectives(分担執筆)
光合作用;全球视角的基本方面(合著者)
  • DOI:
  • 发表时间:
    2005
  • 期刊:
  • 影响因子:
    0
  • 作者:
    K.Mukai;K.Saito;H.Sumi
  • 通讯作者:
    H.Sumi
{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ monograph.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ sciAawards.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ conferencePapers.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ patent.updateTime }}

SUMI Hitoshi其他文献

SUMI Hitoshi的其他文献

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

{{ truncateString('SUMI Hitoshi', 18)}}的其他基金

Study of concerted electron, excitation and proton transfer mediated by a midway molecule in biological systems
生物系统中中途分子介导的协同电子、激发和质子转移的研究
  • 批准号:
    18540402
  • 财政年份:
    2006
  • 资助金额:
    $ 1.6万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)

相似海外基金

Adaptive radiation in photosynthetic reaction center proteins of photosynthetic bacteria
光合细菌光合反应中心蛋白的适应性辐射
  • 批准号:
    19K06858
  • 财政年份:
    2019
  • 资助金额:
    $ 1.6万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Isolation and characterization of a novel photosynthetic reaction center protin
新型光合反应中心蛋白的分离和表征
  • 批准号:
    527571-2018
  • 财政年份:
    2018
  • 资助金额:
    $ 1.6万
  • 项目类别:
    University Undergraduate Student Research Awards
Analysis of the electron transfer reaction involved in quinones in the homodimeric photosynthetic reaction center
同型二聚体光合反应中心醌类参与的电子转移反应分析
  • 批准号:
    18K06153
  • 财政年份:
    2018
  • 资助金额:
    $ 1.6万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Evolution of the photosynthetic reaction center
光合反应中心的演化
  • 批准号:
    15K21122
  • 财政年份:
    2015
  • 资助金额:
    $ 1.6万
  • 项目类别:
    Grant-in-Aid for Young Scientists (B)
The mechanisms to control electron transfer reactions in the homodimeric photosynthetic reaction center based on its molecular structure
基于分子结构控制同型二聚体光合反应中心电子转移反应的机制
  • 批准号:
    15K07026
  • 财政年份:
    2015
  • 资助金额:
    $ 1.6万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Functional analysis of quinone in the photosynthetic reaction center complex of green sulfur bacteria
绿硫细菌光合反应中心复合体醌的功能分析
  • 批准号:
    25891025
  • 财政年份:
    2013
  • 资助金额:
    $ 1.6万
  • 项目类别:
    Grant-in-Aid for Research Activity Start-up
STRUCTURAL STUDIES OF THE PHOTOSYNTHETIC REACTION CENTER FROM R SPHAEROIDES
R SPHAEROIDES光合反应中心的结构研究
  • 批准号:
    8362334
  • 财政年份:
    2011
  • 资助金额:
    $ 1.6万
  • 项目类别:
STRUCTURAL STUDIES OF THE PHOTOSYNTHETIC REACTION CENTER FROM R SPHAEROIDES
R SPHAEROIDES光合反应中心的结构研究
  • 批准号:
    8170338
  • 财政年份:
    2010
  • 资助金额:
    $ 1.6万
  • 项目类别:
STRUCTURAL STUDIES OF THE PHOTOSYNTHETIC REACTION CENTER FROM RHODOBACTER SPHAER
红细菌SPHAER光合反应中心的结构研究
  • 批准号:
    8169989
  • 财政年份:
    2010
  • 资助金额:
    $ 1.6万
  • 项目类别:
Analysis of physicochemical properties and functions of quinone molecule in the homodimeric photosynthetic reaction center
同型二聚体光合反应中心醌分子的理化性质及功能分析
  • 批准号:
    21570168
  • 财政年份:
    2009
  • 资助金额:
    $ 1.6万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了