curriculum vitae

Masakazu Iwai

Research Scientist

Bioenergetics Department
Molecular Biophysics & Integrated Bioimaging Division
Lawrence Berkeley National Laboratory

Visiting Scientist

Niyogi Lab
Department of Plant & Microbial Biology
University of California, Berkeley

Open Researcher and Contributor ID (ORCID)
Google Scholar

Education

Professional Experience

Publication

Please feel free to contact me for a copy if you have difficulty retrieving any of the following publications.
* = corresponding author(s)
  1. A hemoprotein with a zinc-mirror heme site ties heme availability to carbon metabolism in cyanobacteria
    Grosjean N, Yee EF, Kumaran D, Chopra K, Abernathy M, Biswas S, Byrnes J, Kreitler DF, Cheng J-F, Ghosh A, Almo SC, Iwai M, Niyogi KK, Pakrasi HB, Sarangi R, van Dam H, Yang L, Blaby IK, Blaby-Haas CE*
    Nature Communications 15: 3167 (2024)
    DOI: 10.1038/s41467-024-47486-z
  2. Structural diversity in eukaryotic photosynthetic light harvesting
    Iwai M*, Patel-Tupper D, Niyogi KK
    Annual Review of Plant Biology 75: 9.1–9.34 (2024)
    DOI: 10.1146/annurev-arplant-070623-015519
  3. Chlamydomonas cells transition through distinct Fe nutrition stages within 48 h of transfer to Fe-free medium
    Liu HW, Urzica EI, Gallaher SD, Blaby-Haas CE, Iwai M, Schmollinger S, Merchant SS*
    bioRxiv - preprint (2024)
    DOI: 10.1101/2024.02.13.579691
  4. Macroscale structural changes of thylakoid architecture during high light acclimation in Chlamydomonas reinhardtii
    Broderson M, Niyogi KK, Iwai M*
    Photosynthesis Research (2024)
    DOI: 0.1007/s11120-023-01067-1
    bioRxiv - preprint (2021)
    DOI: 10.1101/2021.06.26.450046
  5. Bidirectional energy flow in the photosystem II supercomplex
    Leonardo C†, Yang S-J†, Orcutt K, Iwai M, Arsenault EA, Fleming GR*
    bioRxiv - preprint (2023)
    †Authors contributed equally
    DOI: 10.1101/2023.11.30.569278
  6. Phycobilisome protein ApcG interacts with photosystem II and regulates energy transfer in Synechocystis
    Espinoza-Corral R, Iwai M, Zavřel T, Lechno-Yossef S, Sutter M, Červený J, Niyogi KK, Kerfeld CA*
    Plant Physiology kiad615 (2023)
    DOI: 10.1093/plphys/kiad615
  7. Photoprotection
    Iwai M†, Wakao S†, Niyogi KK
    Chapter 25 In The Chlamydomonas Sourcebook (Third Edition), ed AR Grossman, F-A Wollman, pp. 807-828. London: Academic Press (2023)
    †Authors contributed equally
    ISBN: 978-0-12-821430-5
  8. From antenna to reaction center: Pathways of ultrafast energy and charge transfer in photosystem II
    Yang S-J, Arsenault EA, Orcutt K, Iwai M, Yoneda Y, Fleming GR*
    Proceedings of the National Academy of Sciences USA 119: e2208033119 (2022)
    DOI: 10.1073/pnas.2208033119
  9. The initial charge separation step in oxygenic photosynthesis
    Yoneda Y, Arsenault EA, Orcutt K, Iwai M, Fleming GR*
    Nature Communications 13: 2275 (2022) - selected as an Editor's Highlight
    DOI: 10.1038/s41467-022-29983-1
    arXiv - preprint (2021)
    DOI: 10.48550/arXiv.2107.11112
  10. Role of an ancient light-harvesting protein of PSI in light absorption and photoprotection
    Lu Y*, Gan Q, Iwai M, Alboresi A, Burlacot A, Dautermann O, Takahashi H, Crisanto T, Peltier G, Morosinotto T, Melis A, Niyogi KK*
    Nature Communications 12: 679 (2021)
    DOI: 10.1038/s41467-021-20967-1
  11. Variable optical properties of light-harvesting complex II revisited
    Iwai M*, Chen JJ, Park S, Yoneda Y, Schmid EM, Fletcher DA, Fleming GR, Niyogi KK
    bioRxiv - preprint (2020)
    DOI: 10.1101/2020.10.05.312405
  12. The role of mixed vibronic Qy-Qx states in green light absorption of light-harvesting complex II
    Arsenault EA, Yoneda Y, Iwai M, Niyogi KK, Fleming GR*
    Nature Communications 11: 6011 (2020) - selected as an Editor's Highlight
    DOI: 10.1038/s41467-020-19800-y
    Research Square - preprint (2020)
    DOI: 10.21203/rs.3.rs-46465/v1
  13. Atomic force microscopy visualizes mobility of photosynthetic proteins in grana thylakoid membranes
    Onoa B*, Fukuda S, Iwai M, Bustamante C, Niyogi KK*
    Biophysical Journal 118: 1-11 (2020)
    DOI: 10.1016/j.bpj.2020.02.029
    bioRxiv - preprint (2018)
    DOI: 10.1101/426759
  14. Vibronic mixing enables ultrafast energy flow in light-harvesting complex II
    Arsenault EA, Yoneda Y, Iwai M, Niyogi KK, Fleming GR*
    Nature Communications 11: 1460 (2020)
    DOI: 10.1038/s41467-020-14970-1
  15. The Mars1 kinase confers photoprotection through signaling in the chloroplast unfolded protein response
    Perlaza K, Toutkoushian H, Boone M, Lam M, Iwai M, Jonikas MC, Walter P*, Ramundo S*
    eLife 8: e49577 (2019)
    DOI: 10.7554/eLife.49577
  16. Hexokinase is necessary for glucose-mediated photosynthesis repression and lipid accumulation in a green alga
    Roth MS*, Westcott D, Iwai M, Niyogi KK*
    Communications Biology 2: 347-357 (2019)
    DOI: 10.1038/s42003-019-0577-1
  17. The PSI-PSII megacomplex in green plants
    Yokono M*, Takabayashi A, Kishimoto J, Fujita T, Iwai M, Murakami A, Akimoto S, Tanaka A
    Plant & Cell Physiology 60: 1098-1108 (2019)
    DOI: 10.1093/pcp/pcz026
  18. Chlorophyll-carotenoid excitation energy transfer and charge transfer in Nannochloropsis oceanica for the regulation of photosynthesis
    Park S, Steen C, Lyska D, Fischer AL, Endelman B, Iwai M, Niyogi KK, Fleming GR*
    Proceedings of the National Academy of Sciences of the USA 116: 3385-3390 (2019)
    DOI: 10.1073/pnas.1819011116
  19. Regulation of oxygenic photosynthesis during trophic transitions in the green alga Chromochloris zofingiensis
    Roth MS*, Gallaher SD, Westcott DJ, Iwai M, Louie KB, Mueller M, Walter A, Foflonker F, Bowen BP, Ataii NN, Song J, Chen J-H, Blaby-Haas CE, Larabell C, Auer M, Northen TR, Merchant SS, Niyogi KK*
    The Plant Cell 31: 579-601 (2019)
    DOI: 10.1105/tpc.18.00742
  20. A unique supramolecular organization of photosystem I in the moss Physcomitrella patens
    Iwai M†*, Grob P†, Iavarone AT, Nogales E, Niyogi KK*
    Nature Plants 4: 904-909 (2018)
    †Authors contributed equally
    DOI: 10.1038/s41477-018-0271-1
  21. Chlorophyll-carotenoid excitation energy transfer in high-light-acclimating thylakoid membranes investigated by snapshot transient absorption spectroscopy
    Park S, Fischer AL, Steen C, Iwai M, Morris JM, Walla PJ, Niyogi KK, Fleming GR*
    Journal of the American Chemical Society 140, 11965-11973 (2018)
    DOI: 10.1021/jacs.8b04844
  22. Subdiffraction-resolution live-cell imaging for visualizing thylakoid dynamics
    Iwai M*, Roth MS, Niyogi KK*
    The Plant Journal 96, 233-243 (2018)
    DOI: 10.1111/tpj.14021
  23. Light-harvesting antenna complexes in the moss Physcomitrella patens: implications for the evolutionary transition from green algae to land plants
    Iwai M*, Yokono M
    Current Opinion in Plant Biology 37, 94-101 (2017)
    DOI: 10.1016/j.pbi.2017.04.002
  24. Improving photosynthesis and crop productivity by accelerating recovery from photoprotection
    Kromdijk J, Głowacka K, Leonelli L, Gabilly S, Iwai M, Niyogi KK*, Long SP*
    Science 354, 857-861 (2016)
    DOI: 10.1126/science.aai8878
  25. Live-cell visualization of excitation energy dynamics in chloroplast thylakoid structures
    Iwai M*, Yokono M, Kurokawa K, Ichihara A, Nakano A
    Scientific Reports 6, 29940 (2016)
    DOI: 10.1038/srep29940
  26. Toward understanding the multiple spatiotemporal dynamics of chlorophyll fluorescence
    Iwai M*, Yokono M, Nakano A
    Plant Signaling & Behavior 10:6, e1022014 (2015)
    DOI: 10.1080/15592324.2015.1022014
  27. Light-harvesting complex Lhcb9 confers a green alga-type photosystem I supercomplex to the moss Physcomitrella patens
    Iwai M*, Yokono M, Kono M, Noguchi K, Akimoto S, Nakano A
    Nature Plants 1, 34-40 (2015)
    DOI: 10.1038/nplants.2014.8
  28. Visualizing structural dynamics of thylakoid membranes
    Iwai M*, Yokono M, Nakano A
    Scientific Reports 4, 3768 (2014)
    DOI: 10.1038/srep03768
  29. Photosystem II antenna phosphorylation-dependent protein diffusion determined by fluorescence correlation spectroscopy
    Iwai M*, Pack C-G, Takenaka Y, Sako Y, Nakano A
    Scientific Reports 3, 2833 (2013)
    DOI: 10.1038/srep02833
  30. Isolation of the elusive supercomplex that drives cyclic electron flow in photosynthesis
    Iwai M†, Takizawa K†, Tokutsu R, Okamuro A, Takahashi Y, Minagawa J*
    Nature 464: 1210-1213 (2010)
    †Authors contributed equally
    DOI: 10.1038/nature08885
  31. Live-cell imaging of photosystem II antenna dissociation during state transitions
    Iwai M, Yokono M, Inada N, Minagawa J*
    Proceedings of the National Academy of Sciences of the USA 107: 2337-2342 (2010)
    DOI: 10.1073/pnas.0908808107
  32. Characterization of photosystem I antenna proteins in the prasinophyte Ostreococcus tauri
    Swingley WD, Iwai M, Chen Y, Ozawa S, Takizawa K, Takahashi Y, Minagawa, J*
    Biochimica et Biophysica Acta 1797: 1458-1464 (2010)
    DOI: 10.1016/j.bbabio.2010.04.017
  33. CP29, a monomeric light-harvesting complex II protein, is essential for state transitions in Chlamydomonas reinhardtii
    Tokutsu R, Iwai M, Minagawa J*
    The Journal of Biological Chemistry 284: 7777–7782 (2009)
    DOI: 10.1074/jbc.m809360200
  34. Molecular remodeling of photosystem II during state transitions in Chlamydomonas reinhardtii
    Iwai M, Takahashi Y, Minagawa J*
    The Plant Cell 20: 2177-2189 (2008)
    DOI: 10.1105/tpc.108.059352
  35. Distinct physiological responses to a high light and low CO2 environment revealed by fluorescence quenching in phototrophically grown Chlamydomonas reinhardtii
    Iwai M, Kato N, Minagawa J*
    Photosynthesis Research 94: 307-314 (2007)
    DOI: 10.1007/s11120-007-9220-y
  36. Identification of the mobile light-harvesting complex II polypeptides for state transitions in Chlamydomonas reinhardtii
    Takahashi H†, Iwai M†, Takahashi Y, Minagawa J*
    Proceedings of the National Academy of Sciences of the USA 103: 477-482 (2006)
    †Authors contributed equally
    DOI: 10.1073/pnas.0509952103

Professional Presentations

  • 2023
    LBNL Molecular Biophysics & Integrated Bioimaging Division Annual Meeting (Invited Talk)
    32nd Western Photosynthesis Conference (Invited Talk)
    Quantum Biology Gordon Research Conference (Invited Talk)
  • 2022
    31st Western Photosynthesis Conference (Online Poster)
  • 2020
    Department Seminar at Northern Illinois University (Invited online talk)
    Big Quantum in Proteins International Meeting (Invited online talk)
    Bioenergetics Seminar, Berkeley, CA, USA (Online talk)
    29th Western Photosynthesis Conference, Bodega Bay, CA, USA (Talk)
  • 2019
    28th Western Photosynthesis Conference, Friday Harbor, WA, USA (Talk & Poster)
  • 2018
    Molecular Biophysics & Integrated Bioimaging Division Annual Meeting, Berkeley, CA, USA (Invited Talk)
  • 2016
    Bioenergetics Seminar, Berkeley, CA, USA (Talk)
    The 13th Annual Advanced Imaging Methods Workshop, Berkeley, CA, USA (Poster)
  • 2015
    Plant & Microbial Biology Department Student & Postdoc Seminar, Berkeley, CA, USA (Talk)
    The 56th Annual Meeting of Japan Society of Plant Physiologists, Tokyo, Japan (Talk)
    The 17th Plant Organelle Workshop, Tokyo, Japan (Invited Talk)
    Precursory Research for Embryonic Science and Technology Project Research Seminar, Tokyo, Japan (Talk)
    RIKEN 4D Symposium, Saitama, Japan (Poster)
  • 2014
    Core Research for Evolutionary Science and Technology/Precursory Research for Embryonic Science and Technology Joint Project Meeting, Tokyo, Japan (Talk)
    RIKEN Symposium for Advanced Photonics, Saitama, Japan (Poster)
    The 40th Annual Meeting of the Japan Society for Laser Microscopy, Saitama, Japan (Talk)
    Precursory Research for Embryonic Science and Technology Project Meeting, Shizuoka, Japan (Talk)
    RIKEN Symposium for Advanced Photonics, Saitama, Japan (Poster)
    Japan Society for the Promotion of Science Project Seminar (Invited Talk)
  • 2013
    Core Research for Evolutionary Science and Technology/Precursory Research for Embryonic Science and Technology Joint Project Meeting, Tokyo, Japan (Talk)
    RIKEN Symposium for Advanced Photonics, Saitama, Japan (Poster)
    Precursory Research for Embryonic Science and Technology Project Meeting, Kyoto, Japan (Talk)
    The 4th Annual Symposium of The Japanese Society of Photosynthesis Research, Nagoya, Japan (Invited Talk)
    The 54th Annual Meeting of Japan Society of Plant Physiologists, Okayama, Japan (Talk)
    RIKEN Kibo Symposium, Saitama, Japan (Invited Talk)
  • 2012
    RIKEN Extreme Photonics Research Symposium, Saitama, Japan (Poster)
    Precursory Research for Embryonic Science and Technology Project Meeting, Tokyo, Japan (Talk)
    RIKEN Symposium, Saitama, Japan (Invited Talk)
    Okayama University International Symposium, Okayama, Japan (Poster)
    The 50th Annual Meeting of the Biophysical Society of Japan, Nagoya, Japan (Poster)
    Japanese-Finnish Photosynthesis Research Conference, Turku, Finland (Invited Talk)
    Core Research for Evolutionary Science and Technology/Precursory Research for Embryonic Science and Technology Joint Project Meeting, Hokkaido, Japan (Invited Talk)
    Precursory Research for Embryonic Science and Technology Project Meeting, Shizuoka, Japan (Talk)
    Photosynthesis Gordon Research Conference, Davidson, NC, USA (Poster)
    The 15th Annual Moss International Conference, The Bronx, NY, USA (Poster)
    The 53rd Annual Meeting of Japan Society of Plant Physiologists, Kyoto, Japan (Talk)
    Kyoto University Research Seminar, Kyoto, Japan (Invited Talk)
    Precursory Research for Embryonic Science and Technology Kick-Off Meeting, Kyoto, Japan (Talk)
  • 2011
    The 8th Chlamydomonas Workshop, Tokyo, Japan (Talk)
    The 24th Japanese Association of Plant Lipid Researchers Annual Symposium, Tokyo, Japan (Poster)
    RIKEN Extreme Photonics Research Seminar, Saitama, Japan (Poster)
    The 52rd Annual Meeting of Japan Society of Plant Physiologists, Sendai, Japan (Talk)
    Institute for Protein Research Seminar, Osaka, Japan (Poster)
  • 2010
    RIKEN Extreme Photonics Research Seminar, Saitama, Japan (Poster)
    Tokyo University Research Seminar, Tokyo, Japan (Invited Talk)
    The 51st Annual Meeting of Japan Society of Plant Physiologists, Kumamoto, Japan (Talk)
    RIKEN Advanced Science Institute-Yokohama Joint Research Forum, Yokohama, Japan (Poster)
  • 2009
    RIKEN Advanced Science Institute- BioResource Research Center Joint Research Forum, Saitama, Japan (Poster)
    RIKEN Extreme Photonics Research Seminar, Saitama, Japan (Poster)
    RIKEN Seminar, Saitama, Japan (Talk)
    Nara Institute of Science and Technology Symposium, Nara, Japan (Invited Talk)
    The 50th Annual Meeting of Japan Society of Plant Physiologists, Nagoya, Japan (Talk)
  • 2008
    Nara Institute of Science and Technology Symposium, Nara, Japan (Invited Talk)
    The 49th Annual Meeting of Japan Society of Plant Physiologists, Sapporo, Japan (Talk)
  • 2007
    The Hokkaido Branch Meeting for Botanical Society of Japan, Sapporo, Japan (Invited Talk)
    Satellite Meeting of the 14th International Congress on Photosynthesis "State Transitions", London, UK (Invited Talk)
    The 14th International Congress on Photosynthesis, Glasgow, Scotland (Poster)
    Nara Institute of Science and Technology Workshop, Nara, Japan (Talk)
  • 2006
    Japanese-Finnish Seminar, Nara, Japan (Talk & Poster)
    The 47th Annual Meeting of Japan Society of Plant Physiologists, Tsukuba, Japan (Talk)
    Nara Institute of Science and Technology Workshop, Nara, Japan (Talk)
  • 2005
    The 5th Chlamydomonas Workshop, Tsukuba, Japan (Talk)
    The 46th Annual Meeting of Japan Society of Plant Physiologists, Niigata, Japan (Talk)
  • 2004
    The 13th International Congress on Photosynthesis Research, Montreal, Canada (Poster)

Fellowships, Grants, and Awards

Service - Outreach - Professional Activities