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Nitrogen starvation response in a C4 model plant, Setaria viridis

Research Project

Project/Area Number 20K21271
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 38:Agricultural chemistry and related fields
Research InstitutionNagoya University

Principal Investigator

Kiba Takatoshi  名古屋大学, 生命農学研究科, 准教授 (20532097)

Co-Investigator(Kenkyū-buntansha) Bellegarde Fanny  名古屋大学, 生命農学研究科, 特任助教 (20867618)
Project Period (FY) 2020-07-30 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2021: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2020: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Keywords窒素欠乏応答 / エノコログサ / 窒素栄養 / Setaria viridis / 窒素欠乏 / 窒素応答 / 窒素飢餓
Outline of Research at the Start

植物が自然環境でしばしば遭遇する窒素欠乏を、どのように感知し応答するのかについて、その分子メカニズムの理解は進んでいない。本申請研究では、C4単子葉植物であるエノコログサ(Setaria viridis)を新たな順遺伝学的研究材料として用いて、その分子メカニズム解明に挑戦する。エノコログサは、窒素栄養環境に対する高い適応能力や低窒素環境における高い競合能をもち、実験室レベルで遺伝学的材料として扱いやすい特徴をすべて備えている。具体的には順遺伝学的解析(変異体、GWAS)を行うためのパイプラインを一から構築し、窒素欠乏応答を指標に解析を行うことで、窒素欠乏感知・応答メカニズム解明を目指す。

Outline of Final Research Achievements

The molecular mechanisms of how plants sense and respond to nitrogen deficiency, which they often encounter in the natural environment, are not well understood. One reason for this is that the forward genetic approach using Arabidopsis is approaching its limits. In this study, we attempted to solve this problem by developing a new forward genetic research material, Setaria viridis, a C4 monocotyledonous plant. To this end, we produced a platinum-quality genome assembly and de novo assemblies for 598 wild accessions, created a mutant library, determined the cultivation conditions that induce nitrogen deficiency in juvenile and mature plants, and collected basic data on the physiological response of the plant to nitrogen deficiency.

Academic Significance and Societal Importance of the Research Achievements

本研究がさらに進展し、多くの研究者がエノコログサを順遺伝学的研究に容易に利用できるようになれば、窒素欠乏感知・応答機構を含め植物に普遍的な生命現象についての理解だけでなく、C4植物に特徴的な生命現象の研究の方向性にも大きな変革をもたらすであろう。特筆すべきは、エノコログサが、トウモロコシなど、その大きさゆえに遺伝学的研究には様々な困難が伴う作物と同じC4植物であることである。エノコログサを用いれば、これまでは不可能だった実験系も可能となり、C4 光合成成立の仕組み、C4 植物に特徴的な高い窒素利用効率や乾燥耐性を支えるメカニズム、C4草本雑草防除の研究にも大きな波及効果が期待できる。

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (21 results)

All 2022 2021 2020 Other

All Int'l Joint Research (2 results) Journal Article (8 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 8 results,  Open Access: 7 results) Presentation (8 results) Remarks (2 results) Patent(Industrial Property Rights) (1 results)

  • [Int'l Joint Research] Donald Danforth Plant Science Center/HudsonAlpha Institute for Biotechnology/Dep. Energy Joint Genome Institute(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Donald Danforth Plant Science Center/HudsonAlpha Institute for Biotechnology/Dep. Energy Joint Genome Institute(米国)

    • Related Report
      2020 Research-status Report
  • [Journal Article] 2. Mechanism of nitrogen transport in plants2021

    • Author(s)
      木羽 隆敏, 小西 美稲子, 柳澤 修一
    • Journal Title

      Japanese Journal of Soil Science and Plant Nutrition

      Volume: 92 Issue: 2 Pages: 76-91

    • DOI

      10.20710/dojo.92.2_76

    • NAID

      130008024162

    • ISSN
      0029-0610, 2424-0583
    • Year and Date
      2021-04-05
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Excessive ammonium assimilation by plastidic glutamine synthetase causes ammonium toxicity in Arabidopsis thaliana2021

    • Author(s)
      Hachiya Takushi、Inaba Jun、Wakazaki Mayumi、Sato Mayuko、Toyooka Kiminori、Miyagi Atsuko、Kawai-Yamada Maki、Sugiura Daisuke、Nakagawa Tsuyoshi、Kiba Takatoshi、Gojon Alain、Sakakibara Hitoshi
    • Journal Title

      Nature Communications

      Volume: 12 Issue: 1 Pages: 4944-4944

    • DOI

      10.1038/s41467-021-25238-7

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Low nitrogen conditions accelerate flowering by modulating the phosphorylation state of FLOWERING BHLH 4 in <i>Arabidopsis</i>2021

    • Author(s)
      Sanagi Miho、Aoyama Shoki、Kubo Akio、Lu Yu、Sato Yasutake、Ito Shogo、Abe Mitsutomo、Mitsuda Nobutaka、Ohme-Takagi Masaru、Kiba Takatoshi、Nakagami Hirofumi、Rolland Filip、Yamaguchi Junji、Imaizumi Takato、Sato Takeo
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 118 Issue: 19 Pages: 1-12

    • DOI

      10.1073/pnas.2022942118

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A genome resource for green millet Setaria viridis enables discovery of agronomically valuable loci2020

    • Author(s)
      Mamidi Sujan、Healey Adam、Huang Pu、Grimwood Jane、Jenkins Jerry、Barry Kerrie、Sreedasyam Avinash、Shu Shengqiang、Lovell John T.、Feldman Maximilian、Wu Jinxia、Yu Yunqing、Chen Cindy、Johnson Jenifer、Sakakibara Hitoshi、Kiba Takatoshi et al.
    • Journal Title

      Nature Biotechnology

      Volume: 38 Issue: 10 Pages: 1203-1210

    • DOI

      10.1038/s41587-020-0681-2

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] NIGT1 family proteins exhibit dual mode DNA recognition to regulate nutrient responseassociated genes in Arabidopsis2020

    • Author(s)
      Ueda Yoshiaki、Nosaki Shohei、Sakuraba Yasuhito、Miyakawa Takuya、Kiba Takatoshi、Tanokura Masaru、Yanagisawa Shuichi
    • Journal Title

      PLOS Genetics

      Volume: 16 Issue: 11 Pages: 1-27

    • DOI

      10.1371/journal.pgen.1009197

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Nitrate‐inducible NIGT1 proteins modulate phosphate uptake and starvation signalling via transcriptional regulation of SPX genes2020

    • Author(s)
      Ueda Yoshiaki、Kiba Takatoshi、Yanagisawa Shuichi
    • Journal Title

      The Plant Journal

      Volume: 102 Issue: 3 Pages: 448-466

    • DOI

      10.1111/tpj.14637

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Nitrogen and Phosphorus interactions in plants: from agronomic to physiological and molecular insights.2020

    • Author(s)
      Takatoshi Kiba、Gabriel Krouk
    • Journal Title

      Current Opinion in Plant Biology

      Volume: 57 Pages: 104-109

    • DOI

      10.1016/j.pbi.2020.07.002

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Harnessing symbiotic plant-fungus interactions to unleash hidden forces from extreme plant ecosystems2020

    • Author(s)
      Perez-Alonso M.M., Guerrero-Galan, C., Scholz, S.S., Kiba, T., Sakakibara, H., Ludwig-Muller, J., Krapp, A., Oelmuller, R., Vicente-Carbajosa, J., Pollmann, S.
    • Journal Title

      Journal of Experimental Botany

      Volume: 54 Issue: 13 Pages: 137-142

    • DOI

      10.1093/jxb/eraa040

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] The physiological role of trans-zeatin-type cytokinins in rice2022

    • Author(s)
      Takatoshi Kiba, Kahori Mizutani, Yumiko Takebayashi, Mikiko Kojima, Tokunori Hobo, Hitoshi Sakakibara
    • Organizer
      第63回日本植物生理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 光合成依存的な細胞膜H+-ATPaseの活性化を介したシロイヌナズナ葉での硝酸取り込みの解析2022

    • Author(s)
      木下悟,鈴木孝征,木羽隆敏,榊原均,木下俊則
    • Organizer
      第63回日本植物生理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Agrobacteriumサイトカイニン合成酵素Tmrの宿主細胞内プラスチドへの輸送経路の解析2022

    • Author(s)
      鈴木嵩弘,橋本(杉本)美海,森仁志,木羽隆敏,榊原均
    • Organizer
      第63回日本植物生理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 窒素栄養欠乏時の代謝と成長相転換制御に関わる転写因子の機能解析2022

    • Author(s)
      眞木美帆,久保晃生,佐藤靖武,Filip Rolland,木羽隆敏,高木純平,今泉貴登,山口淳二, 佐藤長緒
    • Organizer
      第63回日本植物生理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] シロイヌナズナにおける器官間シグナル伝達を介した鉄吸収制御2021

    • Author(s)
      田畑亮, 井本駿平, 田村花, 神谷岳洋, 木羽隆敏, 榊原均
    • Organizer
      日本土壌肥料学会2021年度北海道大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 植物ホルモン・サイトカイニンによる植物成長制御 -側鎖修飾と長距離輸送の仕組みと役割-2021

    • Author(s)
      木羽隆敏
    • Organizer
      第255回遺伝子機能解析部門セミナー
    • Related Report
      2021 Annual Research Report
  • [Presentation] ABCG14を介した根から地上部へのサイトカイニン長距離輸送のメカニズム2020

    • Author(s)
      木羽隆敏、橋本祐典、小嶋美紀子、竹林裕美子、榊原均
    • Organizer
      日本植物学会第84回大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Identification of cis-regulatory elements that confers high expression2020

    • Author(s)
      木羽隆敏、工藤徹、矢野健太郎、加藤紀夫
    • Organizer
      第62回植物生理学会年会
    • Related Report
      2020 Research-status Report
  • [Remarks]

    • URL

      https://www.agr.nagoya-u.ac.jp/%7Eck/

    • Related Report
      2021 Annual Research Report
  • [Remarks] https://www.agr.nagoya-u.ac.jp/~ck/

    • Related Report
      2020 Research-status Report
  • [Patent(Industrial Property Rights)] 遺伝子の発現を高める方法2021

    • Inventor(s)
      木羽隆敏、加藤紀夫、矢野 健太郎、工藤徹
    • Industrial Property Rights Holder
      木羽隆敏、加藤紀夫、矢野 健太郎、工藤徹
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2021 Annual Research Report

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Published: 2020-08-03   Modified: 2023-01-30  

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