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Elucidation of mechanism of cesium accumulation for decontamination of radiocesium by microbe

Research Project

Project/Area Number 25340040
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Risk sciences of radiation and chemicals
Research InstitutionJapan Atomic Energy Agency

Principal Investigator

SAKAMOTO Fuminori  国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 先端基礎研究センター, 研究員 (60391273)

Co-Investigator(Kenkyū-buntansha) OHNUKI Toshihiko  国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門先端基礎研究センター, 研究員 (20354904)
KOZAI Naofumi  国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門先端基礎研究センター, 研究員 (80354877)
Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords放射性セシウム / 酵母 / 一遺伝子欠損酵母 / 放射性セシウム回収 / 微生物 / 液胞
Outline of Final Research Achievements

Environmental pollution with the radiocesium around Fukushima Daiichi Nuclear Power Plant (FDNPP) is a big problem. The purpose of this study is to provide new knowledge for effective decontamination of radiocesium released from DFNPP in large quantities by using microbes. As a result of study using 5416 kinds of yeast which is one of microbe, we clarified that the genes in conjunction with tonoplast membrane composition are related to tolerance of radiocesium. In addition, as a result of field experiment using yeast and mycelia of mushroom which is also one of microbe, 75 Bq of Cs-137 was accumulated by the yeast and 86 Bq of Cs-137 was accumulated by the mycelia in maximum from the area of 800 square centimeters respectively. We continue the study to establish the more effective decontamination technique of radiocesium.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (3 results)

All 2015 2014

All Presentation (3 results)

  • [Presentation] 放射性セシウム存在下で発現する酵母タンパク質の同定2015

    • Author(s)
      坂本文徳、香西直文、田中健之、大貫敏彦
    • Organizer
      第88回日本生化学会大会
    • Place of Presentation
      神戸ポートアイランド(兵庫県・神戸市)
    • Year and Date
      2015-12-01
    • Related Report
      2015 Annual Research Report
  • [Presentation] きのこへの放射性セシウムの濃集抑制材の開発2015

    • Author(s)
      坂本文徳、大貫敏彦、香西直文
    • Organizer
      日本原子力学会2015年秋の大会
    • Place of Presentation
      静岡大学(静岡県・静岡市)
    • Year and Date
      2015-09-09
    • Related Report
      2015 Annual Research Report
  • [Presentation] 放射性セシウム濃集に関わる酵母遺伝子の探索2014

    • Author(s)
      坂本文徳
    • Organizer
      第87階日本生化学会大会
    • Place of Presentation
      京都
    • Year and Date
      2014-10-15 – 2014-10-18
    • Related Report
      2014 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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