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Degradation of mRNA on the membrane of endoplasmic reticulum

Research Project

Project/Area Number 17K07450
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Plant molecular biology/Plant physiology
Research InstitutionOsaka Prefecture University

Principal Investigator

Koizumi Nozomu  大阪府立大学, 生命環境科学研究科, 教授 (20252835)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords小胞体ストレス応答 / 細胞質スプライシング / 小胞体シャペロン / RNA分解 / シロイヌナズナ / 小胞体 / ゼニゴケ / 種子貯蔵タンパク質 / 植物 / 遺伝子 / シグナル伝達
Outline of Final Research Achievements

It was shown that the ER stress response occurs in a basal land plant, liverwort. Both of IRE1-mediated cytoplasmic splicing and RIDD were observed as well as in Arabidopsis.It was revealed that an amino acid sequence (ORF2) appeared in bZIP60 after cytoplasmic splicing by IRE1 increases the transcriptional activity of the ER chaperone BiP3 promoter by about ten-fold. Arabidopsis expressing a mutated seed storage protein was produced. In the seeds of this plant, the accumulation of seed storage protein was reduced, and BiP3 expression, which was not normally expressed in seeds, was observed. In other words, we succeeded to produce a plant in which the ER stress response constitutively occurs in seeds.

Academic Significance and Societal Importance of the Research Achievements

植物では小胞体ストレス応答の分子機構、生理的役割について不明な点が少なくない。真核生物で最も古いストレスセンサーであるIRE1が介在する小胞体ストレス応答の分子メカニズムがシロイヌナズナと同様、基部陸上であるゼニゴケでも見られることを明らかにした。植物の小胞体ストレス応答の分子メカニズムの理解が進むと考えられる。
変異型の種子貯蔵タンパク質12Sアルブミンを発現するシロイヌナズナを作出したところ種子において小胞体ストレス応答が観察された。IRE1遺伝子破壊株でこの変異型12Sアルブミンを発現するシロイヌナズナを作出することで小胞体ストレス応答の生理的役割の理解が進むと期待できる。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (12 results)

All 2019 2018 2017

All Journal Article (8 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 8 results,  Open Access: 4 results) Presentation (4 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Unfolded protein-independent IRE1 activation contributes to multifaceted developmental processes in Arabidopsis2019

    • Author(s)
      Mishiba Kei-ichiro、Iwata Yuji、Mochizuki Tomofumi、Matsumura Atsushi、Nishioka Nanami、Hirata Rikako、Koizumi Nozomu
    • Journal Title

      Life Science Alliance

      Volume: 2 Issue: 5 Pages: e201900459-e201900459

    • DOI

      10.26508/lsa.201900459

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Deficiency in the double-stranded RNA binding protein HYPONASTIC LEAVES1 increases sensitivity to the endoplasmic reticulum stress inducer tunicamycin in Arabidopsis2019

    • Author(s)
      Rikako Hirata, Kei-ichiro Mishiba, Nozomu Koizumi & Yuji Iwata
    • Journal Title

      BMC Research Notes

      Volume: 12 Pages: 580-580

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Constitutive BiP protein accumulation in Arabidopsis mutants defective in a gene encoding chloroplast-resident stearoyl-acyl carrier protein desaturase2018

    • Author(s)
      Iwata Yuji、Iida Tsukasa、Matsunami Toshihiro、Yamada Yu、Mishiba Kei-ichiro、Ogawa Takumi、Kurata Tetsuya、Koizumi Nozomu
    • Journal Title

      Genes to Cells

      Volume: 23 Issue: 6 Pages: 456-465

    • DOI

      10.1111/gtc.12585

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Interplay between the unfolded protein response and reactive oxygen species: a dynamic duo2018

    • Author(s)
      Ozgur Rengin、Uzilday Baris、Iwata Yuji、Koizumi Nozomu、Turkan Ismail
    • Journal Title

      Journal of Experimental Botany

      Volume: 69 Issue: 14 Pages: 3333-3345

    • DOI

      10.1093/jxb/ery040

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The Unfolded Protein Response2018

    • Author(s)
      Tabara Kazuki、Iwata Yuji、Koizumi Nozomu
    • Journal Title

      The Plant Endoplasmic Reticulum, Methods and Protocols

      Volume: 1691 Pages: 223-230

    • DOI

      10.1007/978-1-4939-7389-7_17

    • ISBN
      9781493973880, 9781493973897
    • Related Report
      2018 Research-status Report 2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 植物における膜結合型転写因子の活性化機構2018

    • Author(s)
      岩田雄二、小泉望
    • Journal Title

      化学と生物

      Volume: 56 Pages: 732-737

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Inositol-requiring enzyme 1 affects meristematic division in roots under moderate salt stress in Arabidopsis2017

    • Author(s)
      Iwata Yuji、Yagi Fumika、Saito Sae、Mishiba Kei-ichiro、Koizumi Nozomu
    • Journal Title

      Plant Biotechnology

      Volume: 34 Issue: 3 Pages: 159-163

    • DOI

      10.5511/plantbiotechnology.17.0615a

    • NAID

      130006124648

    • ISSN
      1342-4580, 1347-6114
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Overexpression of the endoplasmic reticulum stress-inducible gene <i>TIN1</i> causes abnormal pollen surface morphology in Arabidopsis2017

    • Author(s)
      Iwata Yuji、Nishino Tsuneyo、Koizumi Nozomu
    • Journal Title

      Plant Biotechnology

      Volume: 34 Issue: 3 Pages: 173-176

    • DOI

      10.5511/plantbiotechnology.17.0823b

    • NAID

      130006124639

    • ISSN
      1342-4580, 1347-6114
    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] ゼニゴケ小胞体ストレスセンサーIRE1の機能解析2017

    • Author(s)
      竹田翔,十川太輔,西浜竜一,三柴啓一郎,大和勝幸,河内孝之,岩田雄二,小泉望
    • Organizer
      日本農芸化学会 関西・中四国・西日本支部 2017年度合同大阪大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 形質転換シロイヌナズナによる細胞レベルでの細胞質スプライシングの検出2017

    • Author(s)
      田原一喜,三柴啓一郎,小泉望,岩田雄二
    • Organizer
      日本農芸化学会 関西・中四国・西日本支部 2017年度合同大阪大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 形質転換シロイヌナズナによる細胞レベルでの細胞質スプライシングの検出2017

    • Author(s)
      田原一喜,三柴啓一郎,小泉望,岩田雄二
    • Organizer
      2017年度生命科学系学会合同年次大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Detection of cytoplasmic splicing by BiFC-based reporter in Arabidopsis2017

    • Author(s)
      Kazuki Tabara, Kei-ichiro Mishiba, Nozomu Koizumi, Yuji Iwata
    • Organizer
      Taiwan-Japan Plant Biology 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2021-02-19  

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