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2012 Fiscal Year Annual Research Report

水中パルス放電に伴う各種物理現象によるスサビノリ遺伝子活性化のメカニズム解明

Research Project

Project/Area Number 23760265
Research InstitutionKumamoto University

Principal Investigator

王 斗艶  熊本大学, 大学院先導機構, 准教授 (30508651)

Keywordsバイオエレクトリクス
Research Abstract

水中パルス放電は、放電プラズマより生成される化学的活性種、放電発光に含まれる紫外線、放電路の加熱膨張に伴う衝撃波、放電路先端における超高電界、及び電極間における大電流などの発生を伴い、これらの高エネルギー密度現象を複合要素として発生する。一方、スサビノリは養殖海苔の代表的な品種として日本各地で養殖されており、葉緑体ゲノムの解読および発現配列タグの解読が終了し、実験室での培養が容易であるため大型海藻のモデル植物として使用されている。申請者はこれまでに水中パルス放電によりスサビノリの内生変異体作成に寄与する遺伝子の活性に成功しており、本研究ではそれぞれの単一ストレスがスサビノリ遺伝子に対する影響を調査し、活性メカニズムを解明する。
平成24年度は、平成23年度の化学的活性種・パルス高電界・大電流ストレスに続いて、紫外線をスサビノリへ印加し、遺伝子活性レベルの評価を実施した。キセノンフラッシュランプを用いた紫外線照射実験の結果として、ランプの出力(すなわち照射エネルギー)を増加させていくと、最大で無処理の3倍のPyRE1G1転写レベルが得られた。ただしこの場合、水中ストリーマ状放電の30倍程度の注入エネルギーを要している。水中ストリーマ状放電の印加条件を最適化していけば、より効率的に高い転写レベルを得ることが出来る可能性がある。その一例として印加電圧のパルス幅がある。今回の研究で用いたパルス電源は半値幅で約400nsとなっており、細胞壁への影響が主となる周波数領域である。細胞核へ影響を付加するには100ns以下のパルス幅を有するパルス高電界が必要であると報告されていることから、本研究への単パルス高電圧印加が更なる興味深い結果を引き出すと考える。また、このことはレトロトランスポゾン転写活性のメカニズムを解明するためにも重要となる。

  • Research Products

    (18 results)

All 2013 2012

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (13 results) (of which Invited: 2 results) Book (1 results)

  • [Journal Article] ナノ秒パルス放電方式オゾン発生におけるマルチワイヤ電極の特性2013

    • Author(s)
      澁田哲
    • Journal Title

      静電気学会誌

      Volume: 37, 1 Pages: 2-7

    • Peer Reviewed
  • [Journal Article] Effects of pulsed electric field and pulsed current on transcriptional activation of retrotransposon of Porphyra yezoensis2012

    • Author(s)
      K. Hirayama
    • Journal Title

      International Journal of Plasma Environmental Science & Technology

      Volume: 6, 2 Pages: 272-277

    • Peer Reviewed
  • [Journal Article] Concrete recycling by pulsed power discharge inside concrete2012

    • Author(s)
      S. Inoue
    • Journal Title

      International Journal of Plasma Environmental Science & Technology

      Volume: 6, 2 Pages: 183-188

    • Peer Reviewed
  • [Journal Article] Protein transduction into Eukaryotic cells using non-thermal plasma2012

    • Author(s)
      N. Takamura
    • Journal Title

      International Journal of Plasma Environmental Science & Technolog

      Volume: 6, 1 Pages: 59-62

    • Peer Reviewed
  • [Presentation] Bioelectrics Application for Plants Activatio2013

    • Author(s)
      D. Wang
    • Organizer
      The 6th Workshop on Biological Applications of Plasma/Photon Processin
    • Place of Presentation
      Osaka University Nakanoshima Center, Osaka, Japan
    • Year and Date
      20130308-20130308
    • Invited
  • [Presentation] Performance of waste water treatment system based on nano-seconds pulsed discharge2012

    • Author(s)
      Y. Shimasaki
    • Organizer
      18th International Conference on Advanced Oxidation Technologies for Treatment of Water, Air and Soil
    • Place of Presentation
      Crowne Plaza Riverfront, Jacksonville, Florida, USA
    • Year and Date
      20121111-20121115
  • [Presentation] Effect of rise time of applied pulsed voltage on ozone generation characteristics2012

    • Author(s)
      T. Hirota
    • Organizer
      18th International Conference on Advanced Oxidation Technologies for Treatment of Water, Air and Soil
    • Place of Presentation
      Crowne Plaza Riverfront, Jacksonville, Florida, USA
    • Year and Date
      20121111-20121115
  • [Presentation] Radial distribution of ozone in a coaxial reactor of nano-seconds pulsed discharge based ozonizer2012

    • Author(s)
      S. Naka
    • Organizer
      18th International Conference on Advanced Oxidation Technologies for Treatment of Water, Air and Soil
    • Place of Presentation
      Crowne Plaza Riverfront, Jacksonville, Florida, USA
    • Year and Date
      20121111-20121115
  • [Presentation] Effect of electrode temperature on ozone oroduction using nano-seconds pulsed discharge2012

    • Author(s)
      Y. Araki
    • Organizer
      18th International Conference on Advanced Oxidation Technologies for Treatment of Water, Air and Soil
    • Place of Presentation
      Crowne Plaza Riverfront, Jacksonville, Florida, USA
    • Year and Date
      20121111-20121115
  • [Presentation] Process performance of nano-seconds pulsed discharge2012

    • Author(s)
      T. Namihira
    • Organizer
      18th International Conference on Advanced Oxidation Technologies for Treatment of Water, Air and Soil
    • Place of Presentation
      Crowne Plaza Riverfront, Jacksonville, Florida, USA
    • Year and Date
      20121111-20121115
    • Invited
  • [Presentation] Generation and characteristic survey of atmospheric-pressure dry, vapor, mist plasma jet using high-frequency high-voltage power supply2012

    • Author(s)
      N. Takamura
    • Organizer
      65th Gaseous Electronics Conferenc
    • Place of Presentation
      AT&T Conference Center, Austin, USA
    • Year and Date
      20121022-20121026
  • [Presentation] Effects of reactor cooling for nano-seconds pulsed discharge based ozonizer2012

    • Author(s)
      S. Shibuta
    • Organizer
      4th Euro-Asian Pulsed Power Conference and 19th International Conference on High-Power Particle Beams
    • Place of Presentation
      Karlsruhe Institute of Technology, Karlsruhe, German
    • Year and Date
      20120930-20121004
  • [Presentation] Effect of atmospheric-pressure plasma on cell culture media and cell death2012

    • Author(s)
      N. Takamura
    • Organizer
      4th Euro-Asian Pulsed Power Conference and 19th International Conference on High-Power Particle Beams
    • Place of Presentation
      Karlsruhe Institute of Technology, Karlsruhe, German
    • Year and Date
      20120930-20121004
  • [Presentation] Potential of laser breakdown plasma on new chemical reaction field2012

    • Author(s)
      R. Tsuruga
    • Organizer
      4th Euro-Asian Pulsed Power Conference and 19th International Conference on High-Power Particle Beams
    • Place of Presentation
      Karlsruhe Institute of Technology, Karlsruhe, German
    • Year and Date
      20120930-20121004
  • [Presentation] Development of ozonizer using nano-seconds pulsed discharge2012

    • Author(s)
      K. Yamawaki
    • Organizer
      4th Euro-Asian Pulsed Power Conference and 19th International Conference on High-Power Particle Beams
    • Place of Presentation
      Karlsruhe Institute of Technology, Karlsruhe, German
    • Year and Date
      20120930-20121004
  • [Presentation] Growth control of leaf vegetables using pulsed electric field2012

    • Author(s)
      D. Wang
    • Organizer
      9th International Bioelectrics Symposium
    • Place of Presentation
      KKR Hotel Kumamoto, Kumamoto, Japan
    • Year and Date
      20120905-20120908
  • [Presentation] Protein and antibody transduction into human cells using non-thermal plasma2012

    • Author(s)
      N. Takamura
    • Organizer
      9th International Bioelectrics Symposium
    • Place of Presentation
      KKR Hotel Kumamoto, Kumamoto, Japan
    • Year and Date
      20120905-20120908
  • [Book] Air Pollution - A Comprehensive Perspective2012

    • Author(s)
      T. Matsumoto
    • Total Pages
      533
    • Publisher
      InTech

URL: 

Published: 2014-07-24  

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