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  1. No Access

    Article

    Presence of low-energy chlorophylls d in photosystem I trimer and monomer cores isolated from Acaryochloris sp. NBRC 102871

    Acaryochloris species belong to a special category of cyanobacteria possessing chlorophyll (Chl) d. One of the photosynthetic characteristics of Acaryochloris marina MBIC11017 is that the absorption spectra of ph...

    Ryo Nagao, Haruki Yamamoto, Haruya Ogawa, Hibiki Ito… in Photosynthesis Research (2024)

  2. No Access

    Article

    Improving rice nitrogen-use efficiency by modulating a novel monouniquitination machinery for optimal root plasticity response to nitrogen

    Plant nitrogen (N)-use efficiency (NUE) is largely determined by the ability of root to take up external N sources, whose availability and distribution in turn trigger the modification of root system architect...

    Yunzhi Huang, Zhe Ji, Yujun Tao, Shuxian Wei, Wu Jiao, Yongzhi Fang… in Nature Plants (2023)

  3. No Access

    Article

    Effects of thinning and understorey removal on soil extracellular enzyme activity vary over time during forest recovery after treatment

    Soil extracellular enzyme activities (EEAs) and extracellular enzymatic stoichiometry (EES) play an important role in soil nutrient cycling processes. However, the response of EEAs and EES to forest management...

    Lixiong Zeng, Wenfa **ao, Changfu Liu, Lei Lei, Zunji Jian, Yafei Shen… in Plant and Soil (2023)

  4. No Access

    Article

    Isolation and characterization of trimeric and monomeric PSI cores from Acaryochloris marina MBIC11017

    Photosystem I (PSI) catalyzes light-induced electron-transfer reactions and has been observed to exhibit various oligomeric states and different energy levels of chlorophylls (Chls) in response to oligomerizat...

    Ryo Nagao, Haruya Ogawa, Naoki Tsuboshita, Koji Kato… in Photosynthesis Research (2023)

  5. No Access

    Article

    Biochemical and spectroscopic characterization of PSI-LHCI from the red alga Cyanidium caldarium

    Light-harvesting complexes (LHCs) have been diversified in oxygenic photosynthetic organisms, and play an essential role in capturing light energy which is transferred to two types of photosystem cores to prom...

    Ryo Nagao, Yoshifumi Ueno, Miyu Furutani, Koji Kato… in Photosynthesis Research (2023)

  6. No Access

    Article

    Structural insights into a unique PSI–LHCI–LHCII–Lhcb9 supercomplex from moss Physcomitrium patens

    Photosystem I (PSI) possesses a variable supramolecular organization among different photosynthetic organisms to adapt to different light environments. Mosses are evolutionary intermediates that diverged from ...

    Song Zhang, Kailu Tang, Qiu**g Yan, **ngyue Li, Liangliang Shen… in Nature Plants (2023)

  7. Article

    Natural and artificial photosynthesis: fundamentals, progress, and challenges

    Mohammad Mahdi Najafpour, Jian-Ren Shen… in Photosynthesis Research (2022)

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  8. No Access

    Article

    Exciton quenching by oxidized chlorophyll Z across the two adjacent monomers in a photosystem II core dimer

    This study aimed to clarify (1) which pigment in a photosystem II (PSII) core complex is responsible for the 695-nm emission at 77 K and (2) the molecular basis for the oxidation-induced fluorescence quenching...

    Ahmed Mohamed, Shunsuke Nishi, Keisuke Kawakami, Jian-Ren Shen… in Photosynthesis Research (2022)

  9. No Access

    Article

    Excitation relaxation dynamics of carotenoids constituting the diadinoxanthin cycle

    Carotenoids (Cars) exhibit two functions in photosynthesis, light-harvesting and photoprotective functions, which are performed through the excited states of Cars. Therefore, increasing our knowledge on excita...

    Kohei Kagatani, Ryo Nagao, Jian-Ren Shen, Yumiko Yamano… in Photosynthesis Research (2022)

  10. No Access

    Article

    Effects of mutations of D1-R323, D1-N322, D1-D319, D1-H304 on the functioning of photosystem II in Thermosynechococcus vulcanus

    Photosystem II (PSII) has a number of hydrogen-bonding networks connecting the manganese cluster with the lumenal bulk solution. The structure of PSII from Thermosynechococcus vulcanus (T. vulcanus) showed that D...

    Qingjun Zhu, Yanyan Yang, Yanan **ao, Wenhui Han, **ngyue Li… in Photosynthesis Research (2022)

  11. No Access

    Article

    High-light modification of excitation-energy-relaxation processes in the green flagellate Euglena gracilis

    Photosynthetic organisms finely tune their photosynthetic machinery including pigment compositions and antenna systems to adapt to various light environments. However, it is poorly understood how the photosynt...

    Ryo Nagao, Makio Yokono, Ka-Ho Kato, Yoshifumi Ueno… in Photosynthesis Research (2021)

  12. No Access

    Article

    Structural insights into cyanobacterial photosystem II intermediates associated with Psb28 and Tsl0063

    Photosystem II (PSII) is a multisubunit pigment–protein complex and catalyses light-induced water oxidation, leading to the conversion of light energy into chemical energy and the release of dioxygen. We analy...

    Yanan **ao, Guoqiang Huang, **n You, Qingjun Zhu, Wenda Wang… in Nature Plants (2021)

  13. No Access

    Article

    Adaptation of light-harvesting and energy-transfer processes of a diatom Phaeodactylum tricornutum to different light qualities

    Fucoxanthin-chlorophyll (Chl) a/c–binding proteins (FCPs) are light-harvesting pigment–protein complexes found in diatoms and brown algae. Due to the characteristic pigments, such as fucoxanthin and Chl c, FCPs c...

    Kumiko Oka, Yoshifumi Ueno, Makio Yokono, Jian-Ren Shen… in Photosynthesis Research (2020)

  14. No Access

    Article

    Effects of CO2 and temperature on photosynthetic performance in the diatom Chaetoceros gracilis

    CO2 concentration and temperature for growth of photosynthetic organisms are two important factors to ensure better photosynthetic performance. In this study, we investigated the effects of CO2 concentration and ...

    Ryo Nagao, Yoshifumi Ueno, Seiji Akimoto, Jian-Ren Shen in Photosynthesis Research (2020)

  15. No Access

    Article

    Adaptation of light-harvesting and energy-transfer processes of a diatom Chaetoceros gracilis to different light qualities

    Diatoms are a major group of microalgae in marine and freshwater environments. To utilize the light energy in blue to green region, diatoms possess unique antenna pigment–protein complexes, fucoxanthin chlorop...

    Seiji Akimoto, Yoshifumi Ueno, Makio Yokono, Jian-Ren Shen… in Photosynthesis Research (2020)

  16. No Access

    Article

    Changes in excitation relaxation of diatoms in response to fluctuating light, probed by fluorescence spectroscopies

    A marine pennate diatom Phaeodactylum tricornutum (Pt) and a marine centric diatom Chaetoceros gracilis (Cg) possess unique light-harvesting complexes, fucoxanthin chlorophyll a/c-binding proteins (FCPs). FCPs ha...

    Miyuki Tanabe, Yoshifumi Ueno, Makio Yokono, Jian-Ren Shen… in Photosynthesis Research (2020)

  17. No Access

    Article

    Regulation of photosystem I-light-harvesting complex I from a red alga Cyanidioschyzon merolae in response to light intensities

    Photosynthetic organisms use different means to regulate their photosynthetic activity in respond to different light conditions under which they grow. In this study, we analyzed changes in the photosystem I (P...

    Li**g Chang, Lirong Tian, Fei Ma, Zhiyuan Mao, **aochi Liu… in Photosynthesis Research (2020)

  18. No Access

    Article

    Function of PsbO-Asp158 in photosystem II: effects of mutation of this residue on the binding of PsbO and function of PSII in Thermosynechococcus vulcanus

    PsbO-D158 is a highly conserved residue of the PsbO protein in photosystem II (PSII), and participates in one of the hydrogen-bonding networks connecting the manganese cluster with the lumenal surface. In orde...

    Qingjun Zhu, Yanyan Yang, Yanan **ao, Wenda Wang, Tingyun Kuang… in Photosynthesis Research (2020)

  19. No Access

    Article

    Role of PsbV-Tyr137 in photosystem II studied by site-directed mutagenesis in the thermophilic cyanobacterium Thermosynechococcus vulcanus

    PsbV (cytochrome c550) is one of the three extrinsic proteins of photosystem II (PSII) and functions to maintain the stability and activity of the Mn4CaO5 cluster, the catalytic center for water oxidation. PsbV-Y...

    Yanan **ao, Qingjun Zhu, Yanyan Yang, Wenda Wang, Tingyun Kuang… in Photosynthesis Research (2020)

  20. No Access

    Article

    Effects of excess light energy on excitation-energy dynamics in a pennate diatom Phaeodactylum tricornutum

    Controlling excitation energy flow is a fundamental ability of photosynthetic organisms to keep a better performance of photosynthesis. Among the organisms, diatoms have unique light-harvesting complexes, fuco...

    Ryo Nagao, Yoshifumi Ueno, Makio Yokono, Jian-Ren Shen… in Photosynthesis Research (2019)

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