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A unique photosystem I reaction center from a chlorophyll d-containing cyanobacterium Acaryochloris marina

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Journal of Integrative Plant Biology 2021年第10期63卷 1740-1752页

作者： Caihuang Xu Qingjun Zhu Jing-Hua Chen Liangliang Shen Xiaohan Yi Zihui Huang Wenda Wang Min Chen tingyun kuang Jian-Ren Shen Xing Zhang Guangye Han Department of Biophysics and Department of Pathology of Sir Run Run Shaw Hospital Zhejiang University School of MedicineHangzhou 310058China Photosynthesis Research Center Key Laboratory of PhotobiologyInstitute of BotanyThe Chinese Academy of SciencesBeijing 100093China College of Life Sciences University of Chinese Academy of ScienceBeijing 100049China Center of Cryo-Electron Microscopy Zhejiang University School of MedicineHangzhou 310058China School of Life and Environmental Science Faculty of ScienceUniversity of SydneySydney NSW2006Australia Division of Photosynthesis and Structural Biology Institute for Interdisciplinary Scienceand Graduate School of Natural Science and TechnologyOkayama UniversityOkayama 700-8530Japan

Photosystem I(PSI)is a large protein supercomplex that catalyzes the light-dependent oxidation of plastocyanin(or cytochrome c6)and the reduction of *** catalytic reaction is realized by a transmembrane electron transfer chain consisting of primary electron donor(a special chlorophyll(Chl)pair)and electron acceptors A_(0),A_(1),and three Fe_(4)S_(4) clusters,F_(X),F_(A),and F_(B).Here we report the PSI structure from a Chl d-dominated cyanobacterium Acaryochloris marina at 3.3Åresolution obtained by single-particle cryo-electron *** *** PSI exists as a trimer with three identical ***,the structure reveals a unique composition of electron transfer chain in which the primary electron acceptor A_(0) is composed of two pheophytin a rather than Chl a found in any other well-known PSI structures.A novel subunit Psa27 is observed in the *** PSI *** addition,77 Chls,13α-carotenes,two phylloquinones,three Fe-S clusters,two phosphatidyl glycerols,and one monogalactosyl-diglyceride were identified in each PSI *** results provide a structural basis for deciphering the mechanism of photosynthesis in a PSI complex with Chl d as the dominating pigments and absorbing far-red light.

关键词： A.marina chlorophyll d cryoelectron microscopy pheophytin a photosynthesis photosystem I reaction center

The excitation energy transfer between β-Car and Chla molecules in PS Ⅱ core antenna complexes CP43 and CP47

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Chinese Science Bulletin 2000年第17期45卷 1579-1583页

作者： SHAN Jixiu, WANG Jushuo, LI Liangbi,ZHAO Nanming & kuang tingyun1. Laboratory of Photosynthesis Basic Research, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China 2. Department of Biological Sciences and Biotechnology, State Key Laboratory of Biomembrane and Membrane Biotechnology, Tsinghua University, Beijing 100084, ChinaCorrespondence should be addressed to kuang tingyun Laboratory of Photosynthesis Basic Research Institute of Botany Chinese Academy of Sciences Beijing China Department of Biological Sciences and Biotechnology State Key Laboratory of Biomembrane and Membrane Biotechnology Tsinghua University Beijing China

The excitation energy transfer efficiency between p-Car and Chla molecules in purified CP43 and CP47 was calculated by comparing absorption and fluorescence excitation after normalization at 550 nm, CP43 had an energy transfer efficiency of 29.1% while the CP47 had an energy transfer efficiency of 62.8%, proving that excitation energy was transferred between p-Car and Chla molecules in CP43 and CP47 at normal conditions. The excitation energy transfer between p-Car and Chla molecules in CP43 and CP47 may occur through the "Dexter" mechanism and the distance between these two kinds of pigments should be less than 1 nm. In addition, the results were also used to discuss the conformational relationship between p-Car and Chla molecules in CP43 and CP47.

关键词： CP43 CP47 β-Car Chla excitation energy transfer.

Dynamic changes in flag leaf angle contribute to high photosynthetic capacity

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Chinese Science Bulletin 2009年第17期54卷 3045-3052页

作者： LIU YongKang LI MingJun LI JingYuan LI XiaoJuan YANG XingHong TONG YiPing ZHANG AiMin LI Bin LIN JinXing kuang tingyun LI ZhenSheng Institute of Biology Henan Normal University Xinxiang 453007 China Institute of Botany Chinese Academy of Sciences Beijing 100093 China State Key Laboratory of Crop Biology Shandong Agricultural University Tai'an 271018 China Institute of Genetics and Developmental Biology Chinese Academy of Sciences Beijing 100101 China

Dynamic changes in flag leaf angle, anatomy, photosynthesis, chlorophyll content, population photosynthesis, and light transmission are investigated in three wheat cultivars: Xiaoyan 81 (Xy 81) in which flag leaf angle changes from erect to draped, Xiaoyan 41 (Xy 41) in which flag leaf angle changes from erect to half draped (middle type), and Xiaoyan 6 (Xy 6) in which the flag leaf remains erect from the flowering to the grain-filling stage. No obvious differences in leaf thickness, leaf area, mesophyll morphology, granal stacking, photosynthesis, or chlorophyll content are found among the three cultivars. It is of interest to find that the flag leaf angle of Xy 81 changes from erect to draped during the grain - filling stage, but there are no obvious changes in chlorophyll content or photosynthetic capacity during this period, indicating that changes in flag leaf angle do not result from senescence. Moreover, the study shows that levels of population photosynthesis and light transmission in Xy 81 are higher than in Xy 41 and Xy 6. Taken together, these results demonstrate that dynamic changes in Xy 81 flag leaf angle enhance population photosynthesis and thus may improve wheat yield.

关键词：动态变化光合能力叶角叶绿素含量光合作用小麦品种小偃6号叶片厚度

Relation between seed size in different plant species and response of their seedlings to double CO_2

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Chinese Science Bulletin 1997年第4期42卷 331-333页

作者： DING Li, ZHANG Chonghao, BAI Kezhi and kuang tingyun1 Department of Biology, Beijing Normal University, Beijing 100875, China 2. Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China Department of Biology Beijing Normal University Beijing China Institute of Botany Chinese Academy of Sciences Beijing China

ATMOSPHERIC CO2 concentration is predicted to increase to 700μL/L by the middle of the 21st century. The impacts of raising CO2 on vegetation and ecosystem have been intensively studied. It is well known that C3 species and C4 species responded much differently to double CO2. Potential enhancement of photosynthesis efficiency induced by double CO2 in C3 plants was almost 66%, but in C4 plants only 4%. The response to double CO2 in C3 species might

关键词： double CO2 seed size seedling growth percentage enhancement.

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我国生物质能发展战略的几点意见

化学进展 2007年第7期19卷 1060-1063页

作者：匡廷云白克智杨秀山中国科学院植物研究所北京100093 首都师范大学生命科学院北京100037

本文介绍了国内外生物质能发展的现状与趋势,概述了我国生物质能源近期和远期的潜力。指出研发高新技术是我国生物质能发展的关键。建议以扩大资源总量、提升能源转换的加工技术水平和能源利用效率等为重点。

关键词：生物质能生产潜力生物燃料高技术

Probing the Effects of Mutation of Cytochrome c550-Tyr137 on Photosystem Ⅱ

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Probing the Effects of Mutation of Cytochrome c550-Tyr137 on...

阴离子表面活性剂存在下光系统Ⅱ中酪氨酸残基的性能研究

中国化学会第五届全国生物物理化学会议（NCBPC5）

作者：肖亚男 tingyun kuang Guangye Han Jian-Ren Shen Institute of Botany the Chinese Academy of Sciences Research Institute for Interdisciplinary Science Graduate School of Natural Science and TechnologyOkayama University

Photosystem Ⅱ(PSII) performs light-induced water-oxidation,leading to the splitting of water into electrons,protons and *** structure of cyanobacterial PSII has been studied extensively,which showed that water-oxidat...

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来源： cnki会议评论

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cnki会议

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化学学报 2002年第3期60卷 545-550页

作者：阳振乐李良璧匡廷云中国科学院植物研究所光合中心北京100093

通过荧光光谱和富立叶变换红外 (FT IR)光谱研究了阴离子型表面活性剂 -十二烷基硫酸钠 (SDS)与光系统Ⅱ (PSⅡ )的相互作用 .结果表明 ,PSⅡ表现出酪氨酸荧光的特性 .在PSⅡ蛋白质内部 ,存在着 2 32nm处的组分与酪氨酸之间以及这两种... 详细信息

通过荧光光谱和富立叶变换红外 (FT IR)光谱研究了阴离子型表面活性剂 -十二烷基硫酸钠 (SDS)与光系统Ⅱ (PSⅡ )的相互作用 .结果表明 ,PSⅡ表现出酪氨酸荧光的特性 .在PSⅡ蛋白质内部 ,存在着 2 32nm处的组分与酪氨酸之间以及这两种氨基酸残基与叶绿素a之间的能量传递 .SDS的存在会使这些能量传递以及PSⅡ中蛋白的骨架结构和酪氨酸残基的结构发生改变 ,而变化方式又明显受SDS在溶液中聚集状态的影响 .低于其临界胶束浓度(cmc)时 ,SDS会促进蛋白质中 2 32nm处的组分与酪氨酸之间的能量传递 ,并且使酪氨酸残基处于极性更小的环境 ;而大于cmc时 ,SDS却产生相反的效应 .但不同浓度的SDS均会抑制酪氨酸残基至叶绿素a的能量传递 .

关键词：阴离子表成活性剂光系统Ⅱ 酪氨酸残基能量传递光合作用十二烷基硫酸钠

Increase in electron transfer activity in photosystemⅡof spinach thylakoids caused by conversion of phosphatidyl-glycerol to phosphatidic acid molecules

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Chinese Science Bulletin 2003年第15期48卷 1581-1585页

作者： WU Feng, YANG Zhenle, LI Liangbi & kuang tingyun Key Laboratory of Photosynthesis and Environmental Molecular Physiology & Photosynthesis Research Center, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China Correspondence should be addressed to Yang Zhenle (e-mail: yangzhl @***) Key Lab. of Photosyn. and Environmental Molec. Physiology and Photosynthesis Research Center Institute of Botany Chinese Academy of Sciences Beijing 100093 China

The techniques of oxygen electrode polarography, sodium dodecyl sulfate-polyacryamide gel electrophoresis (SDS-PAGE) and thin layer chromatography (TLC) were employed to investigate the effect of phospholipase D treatment on physiological function of spinach thylakoids. It was shown that the phospholipase D treatment on thylakoid resulted in the degradation of phosphatidylglycerol (PG) and occurrence of phosphatidic acid (PA). The changes of PG to PA molecules caused an increase in oxygen evolution in photosystem Ⅱ (PSⅡ), which was accompanied by an uncoupling effect on thylakoid membrane. It was revealed that the head-groups of PG molecules play an important role in the maintenance of the appropriate physiological activity of thylakoid membrane.

关键词：电子转移活性类囊体光合作用菠菜磷脂酰甘油

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磷脂酰甘油与缺钙光系统Ⅱ的相互作用

化学学报 2000年第7期58卷 856-861页

作者：阳振乐李良璧许亦农匡廷云中国科学院植物研究所光合作用基础研究开放实验室北京100093

对磷脂酰甘油(PG)对缺钙光系统Ⅱ(d_(Ca)PSⅡ)放氧活性的影响及其作用机制进行了研究.结果表明,PG除能促进PSⅡ的放氧活性以外,还对PSⅡ系统表现出新的作用,即PG可以使PSⅡ颗粒因缺钙而受抑制的放氧活性得到恢复;外加Ca^(2+)可使PC表现... 详细信息

对磷脂酰甘油(PG)对缺钙光系统Ⅱ(d_(Ca)PSⅡ)放氧活性的影响及其作用机制进行了研究.结果表明,PG除能促进PSⅡ的放氧活性以外,还对PSⅡ系统表现出新的作用,即PG可以使PSⅡ颗粒因缺钙而受抑制的放氧活性得到恢复;外加Ca^(2+)可使PC表现出对d_(Ca)PSⅡ放氧活性的更大促进作用,且随Ca^(2+)浓度的增加,促进作用也越显著.PG的作用就在于恢复蛋白的正常结构,而PG与Ca^(2+)形成的配合物可以优化这种结构而使缺钙PSⅡ颗粒的放氧活性得到增强.

关键词：缺钙光系统Ⅱ 磷脂酰甘油钙离子放氧活性