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Ultra oil cell: Creating a cell factory that mass-produces carotenoids and long chain unsaturated fatty acids

Research Project

Project/Area Number 18K19166
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 InstitutionThe University of Tokyo

Principal Investigator

Kawano Shigeyuki  東京大学, フューチャーセンター推進機構, 特任研究員 (70161338)

Project Period (FY) 2018-06-29 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2018: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords機能性 / 脂肪酸 / クロレラ / 物質生産 / 細胞機能 / カロテノイド / トレボウクシア / 微生物遺伝育種 / 機能性食品 / 生物活性物質
Outline of Final Research Achievements

Using “ultra oil cell” induced by nutrient starvation and intense light stress, we decided to create a cell factory (Chlorella factory) that accumulated functional substances such as ω3 fatty acids and carotenoids. We focused on selecting strains suitable for the cell factory with an awareness of practical application. The phylogenetic relationship of species and strains about the productivity of fats and carotenoids in addition to biomass were clarified by collecting a wide range of green algae, mainly Trebouxiophyceae and conducting molecular phylogenetic analysis. Most of the species and strains investigated can be easily cultured not only with autotrophs but also with heterotrophs and mixed nutrients, and have high biomass productivity. The productivity of fats under heterotrophic nutrition varies greatly depending on the strain, but some strains had an oil content of more than 50%.

Academic Significance and Societal Importance of the Research Achievements

2021年4月の「2030年度の温室効果ガス削減目標を2013年度比で46%削減する」との政府発表は、パリ協定にもられた26%でも実現を危ぶまれていたので、各界に衝撃をもって受け止められている。地球温暖化は待ったなしであるが、世代時間の短い微細藻類であれば、10年間の研究期間でも二酸化炭素削減に資する新たな品種を開発できる可能性がある。微細藻類を「育種する」という発想こそが、応用微生物学の新たなトレンドになると考え、多くの株とその培養方法を検討するとともに重イオンビーム照射による分子育種法を開発してきた。カロテノイドと長鎖不飽和脂肪酸を大量生産する「超オイル細胞」の作出はその延長線上にある。

Report

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

    (38 results)

All 2021 2020 2019 2018 Other

All Int'l Joint Research (2 results) Journal Article (13 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 11 results,  Open Access: 8 results) Presentation (17 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results) Book (1 results) Remarks (4 results) Patent(Industrial Property Rights) (1 results)

  • [Int'l Joint Research] Czech Academy of Sciences(チェコ)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] Czech Academy of Sciences(チェコ)

    • Related Report
      2018 Research-status Report
  • [Journal Article] Worldwide research trends on microalgae and recent work in Cytologia.2020

    • Author(s)
      Hosokawa, S and Kawano, S.
    • Journal Title

      Cytologia

      Volume: 85 Pages: 178-185

    • NAID

      130007907373

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Sexual difference of optimum environmental condition for growth and maturation of the brown alga Undaria pinnatifida in gametophyte stage2020

    • Author(s)
      Sato, Y., Endo, H., Oikawa, H., Kanematsu, K., Naka, H., Mogamiya, M., Kawano, S., Kazama, Y.
    • Journal Title

      Genes

      Volume: 11 Issue: 8 Pages: 944-944

    • DOI

      10.3390/genes11080944

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The <i>Parachlorella</i> Genome and Transcriptome Endorse Active RWP-RK, Meiosis and Flagellar Genes in Trebouxiophycean Algae2019

    • Author(s)
      Ota, S., Oshima, K., Yamazaki, T., Takeshita, T., Bisova, K., Zachleder, V., Hattori, M. and Kawano, S.
    • Journal Title

      CYTOLOGIA

      Volume: 84 Issue: 4 Pages: 323-330

    • DOI

      10.1508/cytologia.84.323

    • NAID

      130007769499

    • ISSN
      0011-4545, 1348-7019
    • Year and Date
      2019-12-25
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Ultrafast simultaneous Raman-fluorescence spectroscopy.2019

    • Author(s)
      Lindley, M., Hiramatsu, K., Nomoto, H., Shibata, F., Takeshita, T., Kawano, S. and Goda, K.
    • Journal Title

      Anal. Chem.

      Volume: 91 Issue: 24 Pages: 15563-15563

    • DOI

      10.1021/acs.analchem.9b03563

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Asexual thalli originated from sporophytic thalli via apomeiosis in the green seaweed Ulva.2019

    • Author(s)
      Ichihara, K., Yamazaki, T., Miyamura, S., Hiraoka, M. and Kawano, S.
    • Journal Title

      Sci. Rep.

      Volume: 9 Issue: 1 Pages: 13523-13523

    • DOI

      10.1038/s41598-019-50070-x

    • NAID

      120007163346

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] ヘマトコッカス藻の強光回避戦略2019

    • Author(s)
      大田修平・河野重行
    • Journal Title

      Plant Morphology

      Volume: 31 Pages: 19-23

    • NAID

      130007823155

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 微細藻類によるバイオ燃料生産の実用化に向けて 新たな株の単離2019

    • Author(s)
      竹下毅・細川聡子・河野重行
    • Journal Title

      MDB技術予測レポート

      Volume: 1 Pages: 1-15

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Three-dimensional ultrastructure and hyperspectral imaging of metabolite accumulation and dynamics in Haematococcus and Chlorella.2019

    • Author(s)
      Ota, S. and Kawano, S.
    • Journal Title

      Microscopy

      Volume: 68 Issue: 1 Pages: 57-68

    • DOI

      10.1093/jmicro/dfy142

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] カロテノイド市場の形成と展開2019

    • Author(s)
      竹下毅・河野重行
    • Journal Title

      バイオインダストリー

      Volume: 36 Pages: 1-11

    • Related Report
      2018 Research-status Report
  • [Journal Article] Independent regulation of the lipid and starch synthesis pathways by sulfate metabolites in the green microalga Parachlorella kessleri under sulfur starvation conditions.2018

    • Author(s)
      Yamazaki, T., Konosu, E., Takeshita, T., Hirata, A., Ota, S., Kazama, Y., Abe, T., Kawano, S.
    • Journal Title

      Algal Res.

      Volume: 36 Pages: 37-47

    • DOI

      10.1016/j.algal.2018.09.022

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Comparison of lipid productivity of Parachlorella kessleri heavy-ion beam irradiation mutant PK4 in laboratory and 150-L mass bioreactor, identification and characterization of its genetic variation.2018

    • Author(s)
      Takeshita, T., Ivanov, I. N., Oshima, K., Ishii, K., Kawamoto, H., Ota, S., Yamazaki, T., Hirata, A., Kazama, Y., Abe, T., Hattori, M., Bisova, K., Zachleder, V. and Kawano, S.
    • Journal Title

      Algal Res.

      Volume: 35 Pages: 416-426

    • DOI

      10.1016/j.algal.2018.09.005

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Carotenoid dynamics and lipid droplet containing astaxanthin in response to light in the green alga Haematococcus pluvialis2018

    • Author(s)
      Ota Shuhei、Morita Aya、Ohnuki Shinsuke、Hirata Aiko、Sekida Satoko、Okuda Kazuo、Ohya Yoshikazu、Kawano Shigeyuki
    • Journal Title

      Scientific Reports

      Volume: 8 Issue: 1 Pages: 1-10

    • DOI

      10.1038/s41598-018-23854-w

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] カロテノイド世界市場の動向と七色クロレラ2018

    • Author(s)
      竹下毅・河野重行
    • Journal Title

      バイオインダストリー

      Volume: 35 Pages: 9-20

    • Related Report
      2018 Research-status Report
  • [Presentation] クロレラの内部倍数性とAr・Feイオンビーム照射による染色体の分断化と再構築2021

    • Author(s)
      石井公太郎、風間裕介、浅野円花、竹下毅、阿部知子、河野重行
    • Organizer
      日本藻類学会第45回大会 オンライン開催
    • Related Report
      2020 Annual Research Report
  • [Presentation] Ar・Feイオンビーム照射によって生じるクロレラ染色体の断片化と染色体再編成2020

    • Author(s)
      石井公太郎, 風間裕介, 浅野円花, 阿部知子, 河野重行
    • Organizer
      日本育種学会 第138回講演会 オンライン開催
    • Related Report
      2020 Annual Research Report
  • [Presentation] 微細藻類クロレラを用いた、重イオンビーム照射による変異株の作出と大量培養への展開2020

    • Author(s)
      竹下毅、吉澤有子、工藤恭子、惠良田真由美、篠原理香、河野重行
    • Organizer
      日本植物学会第84回大会 オンライン開催
    • Related Report
      2020 Annual Research Report
  • [Presentation] 緑藻クラミドモナスの性転換に伴う配偶子の細胞融合部位の配置転換2020

    • Author(s)
      印南椋矢、宮村新一、大越昌子、南雲保、市原健介、山崎誠和、河野重行
    • Organizer
      日本植物学会第84回大会 オンライン開催
    • Related Report
      2020 Annual Research Report
  • [Presentation] 重イオンビーム照射により得られる微細藻類変異株のスクリーニングと大量培養への展開2020

    • Author(s)
      竹下毅、吉澤有子、工藤恭子、恵良田真由美、篠原利香、河野重行
    • Organizer
      日本藻類学会第44回大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 日本沿岸域に生育する2種のアオノリの比較ゲノム解析2020

    • Author(s)
      山崎誠和、市原健介、桑野和可、宮村新一、河野重行
    • Organizer
      日本藻類学会第44回大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 海産緑藻の配偶子,動接合子,遊走子における眼点のサイズと生育環境との関係2020

    • Author(s)
      宮村新一、桑野和可、河野重行
    • Organizer
      日本藻類学会第44回大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 日本沿岸域に生育する2種のアオノリで起きたオルソログの分子進化2019

    • Author(s)
      山﨑誠和、市原健介、桑野和可、宮村新一、河野重行
    • Organizer
      日本植物学会第83回大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 海産緑藻の配偶子,動接合子,遊走子における眼点のサイズと分布2019

    • Author(s)
      宮村新一、河野重行
    • Organizer
      日本植物学会第83回大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Semi-in vitro アッセイ系を用いた母性遺伝における父方ミトコンドリアDNA分解の解析2019

    • Author(s)
      浦川直希、中村聡、岸本真理子、森山陽介、鈴木孝征、横川大輔、河野重行、東山哲也、佐々木成江
    • Organizer
      日本植物学会第83回大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Exclusion and selection of male and female ogranelles during the developmental process from zygotes to the thallus in Ulva partita2019

    • Author(s)
      Kawano, S., Mogi, Y., Yamazaki, T., Miyamura, S., Kuwano, K
    • Organizer
      7th European Phycological Congress
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Carotenoid and lipid accumulation in about twenty species of Chlorophyceae and Trebouxiophyceae under comparatively high light intensity2019

    • Author(s)
      Takeshita, T., Kudo, Y., Hosokawa, S., Erata, M., Kawano, S.
    • Organizer
      AlgalBBB 2019: The 9th International Conference on Algal Biomass, Biofuels and Bioproducts
    • Related Report
      2019 Research-status Report
  • [Presentation] An optimum condition for promoting growth and maturation at gametophyte stage of Undaria pinnatifida by optimal screening and application for the seedling production on industrial-scale2019

    • Author(s)
      Sato, Y., Oikawa, H., Kanematsu, K., Naka, H., Kawano, S.
    • Organizer
      AlgalBBB 2019: The 9th International Conference on Algal Biomass, Biofuels and Bioproducts
    • Related Report
      2019 Research-status Report
  • [Presentation] ヘマトコッカス藻の株間にみられる表現型とカロテノイド合成能の多様性2019

    • Author(s)
      柴田 洋、三浦 昌也、鈴木 辰弥、竹下 毅、河野 重行
    • Organizer
      日本藻類学会第43回大会、京都大学・吉田南キャンパス(京都市)
    • Related Report
      2018 Research-status Report
  • [Presentation] トレボウクシア藻の強光ストレス条件下における色素変化とオイル蓄積2019

    • Author(s)
      竹下 毅、柴田 洋、惠良田 真由美、宮下 英明、河野 重行
    • Organizer
      日本藻類学会第43回大会、京都大学・吉田南キャンパス(京都市)
    • Related Report
      2018 Research-status Report
  • [Presentation] 電顕3Dとハイパースペクトルで見るヘマトコッカス藻のカロテノイド分布とその動態2018

    • Author(s)
      大田 修平、河野 重行
    • Organizer
      日本植物学会第82回大会、広島国際会議場(広島県・広島市)
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] ハイパースペクトラルイメージングと画像解析による微細藻類のモニタリングシステムの開発2018

    • Author(s)
      大貫 慎輔、大田 修平、河野 重行、大矢 禎一
    • Organizer
      日本植物学会第82回大会、広島国際会議場(広島県・広島市)
    • Related Report
      2018 Research-status Report
    • Invited
  • [Book] 脱石油に向けたCO2資源化技術―化学・生物プロセスを中心に―2020

    • Author(s)
      湯川英明(監修)竹下毅・細川聡子・河野重行(一部共著)
    • Total Pages
      375
    • Publisher
      シーエムシー出版
    • ISBN
      9784781315102
    • Related Report
      2020 Annual Research Report
  • [Remarks] 機能性バイオプロジェクト・研究紹介

    • URL

      http://park.itc.u-tokyo.ac.jp/pls/research.html

    • Related Report
      2020 Annual Research Report 2019 Research-status Report 2018 Research-status Report
  • [Remarks] 機能性バイオ研究支援フォーラム・Research Topics

    • URL

      http://park.itc.u-tokyo.ac.jp/functionalbio/research.html

    • Related Report
      2020 Annual Research Report 2019 Research-status Report 2018 Research-status Report
  • [Remarks] 機能性バイオ研究支援フォーラム・Archives

    • URL

      http://park.itc.u-tokyo.ac.jp/functionalbio/archives.html

    • Related Report
      2020 Annual Research Report 2019 Research-status Report
  • [Remarks] 機能性バイオ研究支援フォーラム・Research Topics

    • URL

      http://park.itc.u-tokyo.ac.jp/pls/research.html

    • Related Report
      2018 Research-status Report
  • [Patent(Industrial Property Rights)] 抗精神疾患剤2020

    • Inventor(s)
      河野 重行、竹下 毅、礒田 博子、佐々木 一憲
    • Industrial Property Rights Holder
      河野 重行、竹下 毅、礒田 博子、佐々木 一憲
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2020-048362
    • Filing Date
      2020
    • Related Report
      2020 Annual Research Report

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Published: 2018-07-25   Modified: 2022-01-27  

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