• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2019 Fiscal Year Annual Research Report

3D ultrastructural analysis of plant endomembrane with high pressure freezing and correlative array tomography

Research Project

Project/Area Number 17K07477
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

豊岡 公徳  国立研究開発法人理化学研究所, 環境資源科学研究センター, 上級技師 (10360596)

Project Period (FY) 2017-04-01 – 2020-03-31
Keywords高圧凍結技法 / アレイトモグラフィー / 植物細胞 / 3次元超微形態 / 細胞内輸送 / 膜交通 / 電子顕微鏡 / 光電子相関顕微鏡
Outline of Annual Research Achievements

エンドメンブレン系分子のSCAMP2-YFPや SYP41-YFP形質転換体シロイヌナズナの芽生え(発芽7-10日の根、葉)を用いて、高圧凍結固定・凍結置換を行った。アクリル系樹脂包埋のあとに、ダイヤモンドナイフを用いてウルトラミクロトームにより500nmまたは1000nmの準超薄切片を作製し、カバーガラスに貼付け、共焦点レーザー顕微鏡を用いて蛍光撮影を行った。さらに高感度検出器を搭載した共焦点レーザー顕微鏡を用いて、100-200nm超薄切片から蛍光検出を試みた。GFP退色防止剤等を含め、最も自家蛍光が少なく、蛍光色素の蛍光強度が強い処理条件を検討したが良好な結果を得られなかった。他のオルガネラマーカーでは良好な結果が得られたため、タグとして用いている蛍光タンパク質を変える必要性がある結論に至った。赤色蛍光タンパク質RFPで標識したゴルジ体やエンドソームなどのエンドソーム系のコンストラクト作製および形質転換体の作製を進めた。ネイティブプロモーター下で発現するシロイヌナズナ形質転換体を作製し、安定に発現する3世代までの株を得た。この株を用いて、高圧凍結しCLEMするための条件検討を進めた。一方、RFP結合SCAMP2形質転換タバコ培養細胞を用いて、分泌に関与する小胞塊のCLEM解析を進めたが、高圧凍結固定の前に通常の化学固定でCLEMを行なったが蛍光は保存できなかった。これらの成果は米国で開催されたアメリカ顕微鏡学会(M&M)や日本顕微鏡学会などで発表を行った。また、退色防止剤を用いた蛍光復帰によりCLEM法を国際誌MIcroscopyに掲載された。

  • Research Products

    (18 results)

All 2020 2019 Other

All Journal Article (12 results) (of which Peer Reviewed: 12 results,  Open Access: 7 results) Presentation (5 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results) Remarks (1 results)

  • [Journal Article] Cytosolic GLUTAMINE SYNTHETASE1;1 Modulates Metabolism and Chloroplast Development in Roots2020

    • Author(s)
      Kusano Miyako、Fukushima Atsushi、Tabuchi-Kobayashi Mayumi、Funayama Kazuhiro、Kojima Soichi、Maruyama Kyonoshin、Yamamoto Yoshiharu Y.、Nishizawa Tomoko、Kobayashi Makoto、Wakazaki Mayumi、Sato Mayuko、Toyooka Kiminori、Osanai-Kondo Kumiko、Utsumi Yoshinori、Seki Motoaki、Fukai Chihaya、Saito Kazuki、Yamaya Tomoyuki
    • Journal Title

      Plant Physiology

      Volume: 182 Pages: 1894~1909

    • DOI

      https://doi.org/10.1104/pp.19.01118

    • Peer Reviewed
  • [Journal Article] Dimorphic Leaf Development of the Aquatic Plant Callitriche palustris L. Through Differential Cell Division and Expansion2020

    • Author(s)
      Koga Hiroyuki、Doll Yuki、Hashimoto Kei、Toyooka Kiminori、Tsukaya Hirokazu
    • Journal Title

      Frontiers in Plant Science

      Volume: 11 Pages: 269

    • DOI

      10.3389/fpls.2020.00269

    • Peer Reviewed / Open Access
  • [Journal Article] Acclimation process of the chlorophyll <i>d</i>-bearing cyanobacterium <i>Acaryochloris marina</i> to an orange light environment revealed by transcriptomic analysis and electron microscopic observation2020

    • Author(s)
      Kashimoto Tomonori、Miyake Keita、Sato Mayuko、Maeda Kaisei、Matsumoto Chikahiro、Ikeuchi Masahiko、Toyooka Kiminori、Watanabe Satoru、Kanesaki Yu、Narikawa Rei
    • Journal Title

      The Journal of General and Applied Microbiology

      Volume: 20 Pages: 2953

    • DOI

      10.2323/jgam.2019.11.008

    • Peer Reviewed / Open Access
  • [Journal Article] Metabolomics with 15N Labeling for Characterizing Missing Monoterpene Indole Alkaloids in Plants2020

    • Author(s)
      Nakabayashi Ryo、Mori Tetsuya、Takeda Noriko、Toyooka Kiminori、Sudo Hiroshi、Tsugawa Hiroshi、Saito Kazuki
    • Journal Title

      Analytical Chemistry

      Volume: 92 Pages: 5670-5675

    • DOI

      10.1021/acs.analchem.9b03860

    • Peer Reviewed / Open Access
  • [Journal Article] High Humidity Causes Abnormalities in the Process of Appressorial Formation of Blumeria graminis f. sp. hordei2020

    • Author(s)
      Sugai Koreyuki、Inoue Hiroshi、Inoue Chie、Sato Mayuko、Wakazaki Mayumi、Kobayashi Kappei、Nishiguchi Masamichi、Toyooka Kiminori、Yamaoka Naoto、Yaeno Takashi
    • Journal Title

      Pathogens

      Volume: 9 Pages: 45~45

    • DOI

      10.3390/pathogens9010045

    • Peer Reviewed / Open Access
  • [Journal Article] Carotenoids in the eyespot apparatus are required for triggering phototaxis in Euglena gracilis2020

    • Author(s)
      Kato Shota、Ozasa Kazunari、Maeda Mizuo、Tanno Yuri、Tamaki Shun、Higuchi‐Takeuchi Mieko、Numata Keiji、Kodama Yutaka、Sato Mayuko、Toyooka Kiminori、Shinomura Tomoko
    • Journal Title

      The Plant Journal

      Volume: 101 Pages: 1091~1102

    • DOI

      10.1111/tpj.14576

    • Peer Reviewed
  • [Journal Article] Efficient fluorescence recovery using antifade reagents in correlative light and electron microscopy2019

    • Author(s)
      Toyooka Kiminori、Shinozaki-Narikawa Naeko
    • Journal Title

      Microscopy

      Volume: 68 Pages: 417~421

    • DOI

      10.1093/jmicro/dfz029

    • Peer Reviewed
  • [Journal Article] Alternative Oxidase Capacity of Mitochondria in Microsporophylls May Function in Cycad Thermogenesis2019

    • Author(s)
      Ito-Inaba Yasuko、Sato Mayuko、Sato Mitsuhiko P.、Kurayama Yuya、Yamamoto Haruna、Ohata Mizuki、Ogura Yoshitoshi、Hayashi Tetsuya、Toyooka Kiminori、Inaba Takehito
    • Journal Title

      Plant Physiology

      Volume: 180 Pages: 743~756

    • DOI

      10.1104/pp.19.00150

    • Peer Reviewed
  • [Journal Article] 3D in vivo imaging of the keratin filament network in the mouse stratum granulosum reveals profilaggrin-dependent regulation of keratin bundling2019

    • Author(s)
      Usui Keiko、Kadono Nanako、Furuichi Yuki、Shiraga Keiichiro、Saitou Takashi、Kawasaki Hiroshi、Toyooka Kiminori、Tamura Hiroomi、Kubo Akiharu、Amagai Masayuki、Matsui Takeshi
    • Journal Title

      Journal of Dermatological Science

      Volume: 94 Pages: 346~349

    • DOI

      10.1016/j.jdermsci.2019.04.006

    • Peer Reviewed
  • [Journal Article] A Rho-actin signaling pathway shapes cell wall boundaries in Arabidopsis xylem vessels2019

    • Author(s)
      Sugiyama Yuki、Nagashima Yoshinobu、Wakazaki Mayumi、Sato Mayuko、Toyooka Kiminori、Fukuda Hiroo、Oda Yoshihisa
    • Journal Title

      Nature Communications

      Volume: 10 Pages: 08396-7

    • DOI

      10.1038/s41467-019-08396-7

    • Peer Reviewed / Open Access
  • [Journal Article] A conserved regulatory mechanism mediates the convergent evolution of plant shoot lateral organs2019

    • Author(s)
      Naramoto Satoshi、Jones Victor Arnold Shivas、Trozzi Nicola、Sato Mayuko、Toyooka Kiminori、Shimamura Masaki、Ishida Sakiko、Nishitani Kazuhiko、Ishizaki Kimitsune、Nishihama Ryuichi、Kohchi Takayuki、Dolan Liam、Kyozuka Junko
    • Journal Title

      PLOS Biology

      Volume: 17 Pages: e3000560

    • DOI

      10.1371/journal.pbio.3000560

    • Peer Reviewed / Open Access
  • [Journal Article] The RopGEF KARAPPO Is Essential for the Initiation of Vegetative Reproduction in Marchantia polymorpha2019

    • Author(s)
      Hiwatashi Takuma、Goh Honzhen、Yasui Yukiko、Koh Li Quan、Takami Hideyuki、Kajikawa Masataka、Kirita Hiroyuki、Kanazawa Takehiko、Minamino Naoki、Togawa Taisuke、Sato Mayuko、Wakazaki Mayumi、Yamaguchi Katsushi、Shigenobu Shuji、Fukaki Hidehiro、Mimura Tetsuro、Toyooka Kiminori、Sawa Shinichiro、...、Ishizaki Kimitsune
    • Journal Title

      Current Biology

      Volume: 29 Pages: 3525~3531.e7

    • DOI

      10.1016/j.cub.2019.08.071

    • Peer Reviewed / Open Access
  • [Presentation] Development of rapid and accurate CLEM system and application for tissues and cells of plant and animal2020

    • Author(s)
      Kiminori Toyooka
    • Organizer
      3D Electron Microscopy of Organelles and Macromolecules (EMOM)
    • Int'l Joint Research / Invited
  • [Presentation] 光-電子相関顕微鏡システムの開発と生物試料への応用2020

    • Author(s)
      豊岡 公徳
    • Organizer
      第125回日本解剖学会総会・全国学術集会
    • Invited
  • [Presentation] 切片SEM観察法の植物試料への応用2019

    • Author(s)
      豊岡 公徳
    • Organizer
      日本顕微鏡学会第75回学術講演会
  • [Presentation] Fluorescence Detection of Fluorescence-labeled Organelles In-resin Section using Antifade Reagents in Correlative Light and Electron Microscopy2019

    • Author(s)
      Kiminori Toyooka
    • Organizer
      Microscopy & Microanalysis 2019 Meeting
    • Int'l Joint Research
  • [Presentation] 走査電顕を用いた組織・細胞の新しい捉え方2019

    • Author(s)
      豊岡 公徳
    • Organizer
      日本植物学会第83回大会
  • [Remarks] 理化学研究所 環境資源科学研究センター 質量分析・顕微鏡解析ユニット 顕微鏡施設

    • URL

      http://bioem.riken.jp

URL: 

Published: 2021-01-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi