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Analysis of defense responses based on innate immunity against viroid infection and mechanism to develop dwarfing and necrosis

Research Project

Project/Area Number 18H02201
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 39040:Plant protection science-related
Research InstitutionHirosaki University

Principal Investigator

Sano Teruo  弘前大学, 農学生命科学部, 教授 (30142699)

Co-Investigator(Kenkyū-buntansha) 葛西 厚史  弘前大学, 農学生命科学部, 研究機関研究員 (80633982)
中原 健二  北海道大学, 農学研究院, 講師 (90315606)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2020: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2019: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Keywordsウイロイド / 自然免疫 / 矮化 / 壊疽 / 活性酸素種(ROS) / miR398 / miR398a-3p / 2-オキソグルタル酸ジオキシゲナーゼ / 矮化・壊疽 / miRNA398 / miRNA398a-3p / 2-オキソグルタル酸オキシゲナーゼ / トランスクリプトーム解析 / 防御反応 / 活性酸素種 / スーパーオキシドジスムターゼ / 2-オキソグルタル酸/Fe(II)依存ジオキシゲナーゼ / ダイサー様リボヌクレアーゼ / 壊疽症状 / マイクロRNA398 / マイクロRNA398a-3p / ジベレリンβ水酸化酵素
Outline of Final Research Achievements

In tomato plants infected with the virulent strain of potato spindle tuber viroid (PSTVd), stress-responsive microRNAs (miR398 and miR398a-3p) were excessively induced, and the expression of SOD genes encoding reactive oxygen species (ROS) scavenging enzymes were down-regulated, which caused loss of normal ROS scavenging function resulted in excessive accumulation of ROS, leading to severe pathological symptoms accompanied by necrosis. The nucleotides at position 42 and 64 of the attenuated strain of PSTVd were key nucleotides for the attenuation, and in cooperation with the nucleotides 43, 310, and 311/312, contributed to its low and stable accumulation. The attenuated strain did not elicit an excessive defense responses, such as pathogenesis-related protein 1b1. A novel 2-oxoglutarate Fe (II)-dependent oxygenase gene associated with dwarfing and leaf malformation characteristic of viroid disease was identified in tomato plant (Solanum lycopersicum).

Academic Significance and Societal Importance of the Research Achievements

ウイロイドは小環状1本鎖RNA病原体で、侵入した宿主細胞中で自己増殖し、矮化・葉巻・壊疽・塊茎/果実の肥大異常や着色障害を起こす。ジャガイモ、トマト、キク、ココヤシ、ホップ、リンゴなど様々な農作物に経済的被害を与えている。治療薬はなく、診断により早期に発見して除去する以外に有効な防除方法がない。本研究では、ウイロイド感染に対する宿主の基礎的自然免疫で生じる抵抗性反応、特に活性酸素種の発生機構とそれがウイロイド特有の病徴発現に至る分子機構の一端を明らかした。これらの研究成果は、植物本来の自然免疫を活用した実用的ウイロイド防御戦略の開発に貢献するものである。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (33 results)

All 2021 2020 2019 2018 Other

All Int'l Joint Research (4 results) Journal Article (11 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 11 results,  Open Access: 8 results) Presentation (18 results) (of which Int'l Joint Research: 4 results)

  • [Int'l Joint Research] シェルブルック大学(カナダ)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] 中国農業科学院植物保護研究所(中国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] シェルブルック大学(カナダ)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] 中国農業科学院植物保護研究所(中国)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Mechanism underlying potato spindle tuber viroid affecting tomato (Solanum lycopersicum): loss of control over reactive oxygen species production2021

    • Author(s)
      Fujibayashi Misato、Suzuki Takahiro、Sano Teruo
    • Journal Title

      Journal of General Plant Pathology

      Volume: 87 Issue: 4 Pages: 1-10

    • DOI

      10.1007/s10327-021-01000-1

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Suppression of RNA-dependent RNA polymerase 6 in tomatoes allows potato spindle tuber viroid to invade basal part but not apical part including pluripotent stem cells of shoot apical meristem.2020

    • Author(s)
      Naoi T, Kitabayashi S, Kasai A, Sugawara K, Adkar-Purushothama CR, Senda M, Hataya T, Sano T.
    • Journal Title

      PLoS One

      Volume: 15(7) Issue: 7 Pages: e0236481-e0236481

    • DOI

      10.1371/journal.pone.0236481

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] RNA silencing-related genes contribute to tolerance of infection with potato virus X and Y in a susceptible tomato plant. Plant viruses2020

    • Author(s)
      Kwon J, Kasai A, Maoka T, Masuta C, Sano T, Nakahara, K.S.
    • Journal Title

      Virology J

      Volume: 17 Issue: 1 Pages: 149-149

    • DOI

      10.1186/s12985-020-01414-x

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Identification and molecular mechanisms of key nucleotides causing attenuation in pathogenicity of dahlia isolate of potato spindle tuber viroid2020

    • Author(s)
      Kitabayashi S, Tsushima D, Adkar-Purushothama CR, Sano T.
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 21 Issue: 19 Pages: 7352-7352

    • DOI

      10.3390/ijms21197352

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effects of host-adaptive mutations on hop stunt viroid pathogenicity and small RNA biogenesis2020

    • Author(s)
      Zhang Z, Xia C, Matsuda T, Taneda A, Murosaki F, Hou W, Owens RA, Li S, Sano T.
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 21 Issue: 19 Pages: 7383-7383

    • DOI

      10.3390/ijms21197383

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] RNAi-mediated down-regulation of dicer-like 2 and 4 changes the response of ‘Moneymaker’ tomato to potato spindle tuber viroid infection from tolerance to lethal systemic necrosis, accompanied by up-regulation of miR398, 398a-3p and production of excessive amount of reactive oxygen species2019

    • Author(s)
      Suzuki T, Ikeda S, Kasai A, Taneda A, Fujibayashi M, Sugawara K, Okuta M, Maeda H, Sano T.
    • Journal Title

      Viruses

      Volume: 11 Issue: 4 Pages: 344-344

    • DOI

      10.3390/v11040344

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Biological and molecular characterization of hop stunt viroid variants from pistachio trees in Iran2019

    • Author(s)
      Maddahian M, Massumi H, Heydarnejad J, Hosseinipour A, Khezri A, Sano T.
    • Journal Title

      J Phytopathology

      Volume: 167 Issue: 3 Pages: 163-173

    • DOI

      10.1111/jph.12783

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Viroid diseases in pome and stone fruit trees and Koch’s postulates: a critical assessment2018

    • Author(s)
      Di Serio F, Ambros S, Sano T, Flores R, Navarro B.
    • Journal Title

      Viruses

      Volume: 10 Issue: 11 Pages: 612-612

    • DOI

      10.3390/v10110612

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Vertical and Horizontal Transmission of Pospiviroids2018

    • Author(s)
      Matsushita Y, Yanagisawa Y, Sano T.
    • Journal Title

      Viruses

      Volume: 10 Issue: 12 Pages: 706-706

    • DOI

      10.3390/v10120706

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Influence of the terminal left domain on horizontal and vertical transmissions of tomato planta macho viroid and potato spindle tuber viroid through pollen2018

    • Author(s)
      Yanagisawa H, Sano T, Hase S, Matsushita Y.
    • Journal Title

      Virology

      Volume: 526 Pages: 22-31

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Viroid-derived small RNA induces early flowering in tomato plants by RNA silencing2018

    • Author(s)
      Adkar-Purushothama CR, Sano T, Perreault J-P
    • Journal Title

      Mol Plant Pathol.

      Volume: 19 Issue: 11 Pages: 2446-2458

    • DOI

      10.1111/mpp.12721

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] ジャガイモやせいもウイロイドの病原性の違いに関与する宿主遺伝子の発現量解析2020

    • Author(s)
      北林奨也・佐野輝男
    • Organizer
      令和2年度日本植物病理学会大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Analysis of increased virulence of potato virus X in AGO2-knockdown tomato2020

    • Author(s)
      Kwon J, Maoka T, Sano T, Masuta C, Nakahara K.
    • Organizer
      令和2年度日本植物病理学会大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ウイロイド感受性トマト品種におけるジャガイモやせいもウイロイド感染による病徴発現関連遺伝子転写物の5’非翻訳領域の欠失2020

    • Author(s)
      鈴木貴大・藤林美里・佐野輝男
    • Organizer
      令和2年度日本植物病理学会大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] RNA silencing-related genes are involved in tomato tolerance toward virus infection2019

    • Author(s)
      Kwon, J., C. Masuta, A. Kasai, T. Sano, K. Nakahara
    • Organizer
      38th Annual American Society for Virology Meeting
    • Related Report
      2019 Annual Research Report
  • [Presentation] 果実障害の重症度を制御するリンゴゆず果ウイロイド塩基配列の分析2019

    • Author(s)
      鈴木貴大・佐野輝男
    • Organizer
      平成 31年度(第 54回)植物感染生理談話会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ジャガイモやせいもウイロイド-42番塩基変異体の弱毒化機構―蓄積量と標的候補遺伝子の発現量解析―2019

    • Author(s)
      北林奨也・対馬大希・Adkar-Purushothama C.R.・佐野輝男
    • Organizer
      平成 31年度(第 54回)植物感染生理談話会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ジャガイモやせいもウイロイド感染による矮化・葉巻病徴発現に関与するトマト遺伝子の解析2019

    • Author(s)
      鈴木貴大・藤林美里・葛西厚史・佐野輝男・Zhang, Z-X.・Li S-F.
    • Organizer
      令和元年度日本植物病理学会東北部会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ジャガイモやせいもウイロイドの42 番塩基と64 番塩基の変異による弱毒化の解析2019

    • Author(s)
      北林奨也・対馬大希・Adkar-Purushothama, C.R.・佐野輝男
    • Organizer
      令和元年度日本植物病理学会東北部会
    • Related Report
      2019 Annual Research Report
  • [Presentation] リンゴゆず果ウイロイドのトマト果実への病原性を制御する塩基配列の分析2019

    • Author(s)
      鈴木貴大・藤林美里・佐野輝男
    • Organizer
      令和元年度日本植物病理学会東北部会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ジャガイモやせいもウイロイド感染トマトにおける活性酸素種の発生と壊疽症状2019

    • Author(s)
      鈴木貴大・藤林美里・前多隼人・佐野輝男
    • Organizer
      平成31年度日本植物病理学会大会(つくば市)
    • Related Report
      2018 Annual Research Report
  • [Presentation] ジャガイモやせいもウイロイドの弱毒化に関与する宿主遺伝子-カルコン合成酵素遺伝子の発現量分析2019

    • Author(s)
      北林奨也・対馬大希・Adkar-Purushothama C.R・佐野輝男
    • Organizer
      平成31年度日本植物病理学会大会(つくば市)
    • Related Report
      2018 Annual Research Report
  • [Presentation] トマトRDR6はジャガイモやせいもウイロイド2系統の頂端分裂組織への侵入を同様の抑制するが、初期増殖に異なる影響を及ぼす2019

    • Author(s)
      直井 崇・畑谷 達児・北林 奨也・葛西 厚史・佐野 輝男
    • Organizer
      平成31年度日本植物病理学会大会(つくば市)
    • Related Report
      2018 Annual Research Report
  • [Presentation] Selection of AFCVd variants with severe and mild symptom on tomato fruits2018

    • Author(s)
      Suzuki, T., M. Fujibayashi, T. Sano
    • Organizer
      International Conference on Viroids and Viroid-like RNAs (Valencia, Spain)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Susceptibility to viroid infection of tomato plant in which RNA silencing key factors - AGO2, RDR6, or DCL2 & 4 - is knocked down2018

    • Author(s)
      Suzuki, T., A. Kasai, M. Fujibayashi, T. Sano
    • Organizer
      International Conference on Viroids and Viroid-like RNAs (Valencia, Spain)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Elimination of apple fruit crinkle viroid (AFCVd) during anther development and its depressed propagation in pollen of Nicotiana tabacum2018

    • Author(s)
      Matousek, J., L. Steinbachova, UK. Killi, AK. Mishra, T. Sano, D. Honys, G. Steger
    • Organizer
      International Conference on Viroids and Viroid-like RNAs (Valencia, Spain)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Identification and characterization of miRNAs in cucumber and their responses to hop stunt viroid (HSVd) infection2018

    • Author(s)
      Zhang, ZX., CJ. Xia, WY. Hou, ZF. Fan, T. Sano, SF. Li
    • Organizer
      International Conference on Viroids and Viroid-like RNAs (Valencia, Spain)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ジャガイモやせいもウイロイド ( PSTVd ) の42番塩基の変異がもたらす弱毒化機構の分析2018

    • Author(s)
      北林奨也・対馬大希・Adkar-Purushothama CR・佐野輝男
    • Organizer
      平成30年度日本植物病理学会東北部会(山形市・山形大学)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 黄化・壊疽症状を示すジャガイモやせいもウイロイド感染トマト葉における活性酸素種の発生量解析2018

    • Author(s)
      鈴木貴大・藤林美里・前多隼人・佐野輝男
    • Organizer
      平成30年度日本植物病理学会東北部会(山形市・山形大学)
    • Related Report
      2018 Annual Research Report

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Published: 2018-04-23   Modified: 2022-01-27  

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