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Bacterial cell differentiation controlled by prophages

Research Project

Project/Area Number 19K22411
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 44:Biology at cellular to organismal levels, and related fields
Research InstitutionUniversity of Tsukuba

Principal Investigator

Toyofuku Masanori  筑波大学, 生命環境系, 准教授 (30644827)

Project Period (FY) 2019-06-28 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2020: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsプロファージ / 細菌 / 形態分化 / 細胞壁 / スフェロプラスト / エンドリシン
Outline of Research at the Start

本研究では内在性ファージの働きによって細菌集団中に一定の割合で出現する、細胞壁を失った細菌を解析する。細胞壁を失った細菌は通常細菌とは明らかに異質であり、これまでに想定されてきた細菌の形質の範囲を大きく押し広げることが予想される。さらには、物質生産等、細菌を利用した産業に画期的な知見を提供する可能性がある。

Outline of Final Research Achievements

We have found that in bacteria that harbor prophage in their genome, cell that lose their cell walls appear in about 1% of the entire population. Bacteria that have lost their cell walls may exhibit properties that are different from those of normal bacteria. Therefore, we aimed to characterize the basic properties of bacteria that have lost their cell walls.Although bacteria that have lost their cell walls occur infrequently, in this study, we optimized the culture conditions and established a culture system in which nearly 90% of all cells survive without cell walls. We also found that such cells appeared in both Gram-negative and Gram-positive bacteria. The analysis also suggested that the bacteria are in a kind dormant sate.

Academic Significance and Societal Importance of the Research Achievements

細胞壁を失った細胞は通常の細胞とその性質が大きく異なることが予測されるが、そのような細胞が自然界に存在し、何らかの役割を果たしているとはこれまでにほとんど考えられてこなかった。本成果によって細胞壁を失った細胞がグラム陰性菌および陽性菌のモデル細菌で出現することが明らかとなり、多くの細菌が環境に応じて一種の形態分化を行うことが示唆された点で学術的な意義がある。さらに、細菌を失った細菌はある種の抗生物質への耐性も示しており、微生物制御新たな観点もたらす。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (23 results)

All 2022 2021 2020 2019 Other

All Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 7 results,  Open Access: 5 results) Presentation (13 results) (of which Int'l Joint Research: 2 results,  Invited: 11 results) Remarks (3 results)

  • [Journal Article] Phage Genes Induce Quorum Sensing Signal Release through Membrane Vesicle Formation2022

    • Author(s)
      Yasuda Marina、Yamamoto Tatsuya、Nagakubo Toshiki、Morinaga Kana、Obana Nozomu、Nomura Nobuhiko、Toyofuku Masanori
    • Journal Title

      Microbes and Environments

      Volume: 37 Issue: 1 Pages: n/a

    • DOI

      10.1264/jsme2.ME21067

    • NAID

      130008144944

    • ISSN
      1342-6311, 1347-4405
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Autolysis‐mediated membrane vesicle formation in Bacillus subtilis2021

    • Author(s)
      Abe Kimihiro、Toyofuku Masanori、Nomura Nobuhiko、Obana Nozomu
    • Journal Title

      Environmental Microbiology

      Volume: - Issue: 5 Pages: 2632-2647

    • DOI

      10.1111/1462-2920.15502

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mycolic acid-containing bacteria trigger distinct types of membrane vesicles through different routes2021

    • Author(s)
      Nagakubo Toshiki、Tahara Yuhei O.、Miyata Makoto、Nomura Nobuhiko、Toyofuku Masanori
    • Journal Title

      iScience

      Volume: 24 Issue: 1 Pages: 102015-102015

    • DOI

      10.1016/j.isci.2020.102015

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Involvement of membrane vesicles in long‐chain‐ AHL delivery in Paracoccus species2020

    • Author(s)
      Morinaga Kana、Nagakubo Toshiki、Nomura Nobuhiko、Toyofuku Masanori
    • Journal Title

      Environmental Microbiology Reports

      Volume: 12 Issue: 3 Pages: 355-360

    • DOI

      10.1111/1758-2229.12843

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Peculiarities of biofilm formation by Paracoccus denitrificans and associated factors2020

    • Author(s)
      Morinaga K, Yoshida K, Takahashi K, Nomura N, Toyofuku M
    • Journal Title

      Applied Microbiology and Biotechnology

      Volume: 104 Issue: 6 Pages: 2427-2433

    • DOI

      10.1007/s00253-020-10400-w

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cracking open bacterial membrane vesicles2020

    • Author(s)
      Nagakubo T, Nomura N, Toyofuku M.
    • Journal Title

      Frontiers in Microbiology

      Volume: 10 Pages: 3026-3026

    • DOI

      10.3389/fmicb.2019.03026

    • NAID

      120007132782

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Polyfunctional nanofibril appendages mediate attachment, filamentation, and filament adaptability in Leptothrix cholodnii2019

    • Author(s)
      Kunoh T, Morinaga K, Sugimoto S, Miyazaki S, Toyofuku M, Iwasaki K, Nomura N, Utada AS
    • Journal Title

      ACS Nano

      Volume: 14 Issue: 5 Pages: 5288-5297

    • DOI

      10.1021/acsnano.9b04663

    • NAID

      120007132616

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Applying single cell imaging to understand bacterial membrane vesicle transport2022

    • Author(s)
      豊福雅典
    • Organizer
      日本農芸化学会2022年度大会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] イメージングで捉える細菌の細胞外膜小胞輸送2022

    • Author(s)
      豊福雅典
    • Organizer
      第95回 細菌学会総会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 球状になる緑膿菌の亜集団細胞の解析2022

    • Author(s)
      原田 潤、兼松周作、野村暢彦、豊福雅典
    • Organizer
      第56回緑膿菌感染症研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 緑膿菌細胞集団中の一部で出現する球状細胞の解析2022

    • Author(s)
      原田 潤、兼松周作、野村暢彦、豊福雅典
    • Organizer
      日本農芸化学会2022年度大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Bacterial Interactions Through Membrane Vesicles2021

    • Author(s)
      Masanori Toyofuku
    • Organizer
      FEMS-ASM World Microbe Forum
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Bacterial communication through MVs2021

    • Author(s)
      Masanori Toyofuku
    • Organizer
      EMBO workshop
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 膜小胞を介した細菌間コミュニケーションの研究2021

    • Author(s)
      豊福雅典
    • Organizer
      日本微生物学連盟 野本賞 受賞講演
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Bacterial Trafficking of Biomolecules Through Membrane Vesicles2021

    • Author(s)
      豊福雅典
    • Organizer
      Annual meeting of electrokinetic society Japan
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] メンブレンベシクル形成機構の多様性と普遍性2021

    • Author(s)
      豊福雅典
    • Organizer
      日本農芸化学会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 細菌における多様なMV形成機構2020

    • Author(s)
      豊福雅典
    • Organizer
      日本生化学会大会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] MV形成機構におけるパラダイムシフトとその応用2020

    • Author(s)
      豊福雅典
    • Organizer
      第93回日本細菌学会総会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 緑膿菌細胞集団中に出現するスフェロプラスト様細胞の解析2020

    • Author(s)
      兼松周作、野村暢彦、豊福雅典
    • Organizer
      生化学若い研究者の会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 細菌の生き様を捉える2020

    • Author(s)
      豊福雅典
    • Organizer
      生化学若い研究者の会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Remarks] 研究室HP

    • URL

      https://sites.google.com/alumni.tsukuba.ac.jp/masatoyofuku/home

    • Related Report
      2021 Annual Research Report
  • [Remarks] 研究者総覧

    • URL

      https://trios.tsukuba.ac.jp/researcher/0000003299

    • Related Report
      2020 Research-status Report
  • [Remarks] 研究室HP

    • URL

      http://www.envr.tsukuba.ac.jp/~microbio/

    • Related Report
      2019 Research-status Report

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Published: 2019-07-04   Modified: 2023-01-30  

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