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Electrical control of the growth of plant roots showing self-organized structures

Research Project

Project/Area Number 02650306
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 計測・制御工学
Research InstitutionKyushu University

Principal Investigator

TOKO Kiyoshi  Kyushu University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (50136529)

Co-Investigator(Kenkyū-buntansha) IIYAMA Satoru  Kyushu Junior College of Kinki University, Home Economics, Associate Professor, 九州短期大学, 助教授 (80176057)
HAYASHI Kenshi  Kyushu University, Faculty of Engineering, Assistant Professor, 工学部, 助手 (50202263)
Project Period (FY) 1990 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1991: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1990: ¥1,500,000 (Direct Cost: ¥1,500,000)
KeywordsPlant / Self-organized state / Growth differentiation / Electric control / Electric spatial pattern
Research Abstract

In this work, using adzuki been (Azukia angularis), we studied the relationship between the growth and the electric phenomenon. The present purposes are to understand basic phenomena about the growth under the electrical control, and to make clear the mechanism of the self-organized structure constructed from ion channels and pumps in the multi-cellular system. The following results were obtained :
1) Using the multi-electrode measuring system, it was found that the oscillation of electric potential near the surface around the root appears coherent. The root growth is larger with the higher-frequency oscillation.
2) The growth speed becomes higher by applying the DC electric field in the direction from the base to the top of the root. The reverse of the electric field makes the growth speed lower.
3) The root bends to the side of the positive electrode with application of the DC electric field in the transverse direction. The bending tendency increases with increasing the electric field.
These facts show that the growth control by the electric method may be possible by changing the electrochemical environment made by a plant itself.

Report

(3 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • Research Products

    (39 results)

All Other

All Publications (39 results)

  • [Publications] Kiyoshi Toko: "Growth and Electric Current Flowing at the Surface of Stems" Protoplasma. 154. 71-73 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Kiyoshi Toko: "Oscillations of Electrical Potentioal along a Root of a Higher Plant" Biophys.J.57. 269-279 (1190)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Masaaki Souda: "Relationshiop between Growth and Electric Oscillations in Bean Roots" Plant Physiol.93. 532-536 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Shu Ezaki: "Electrical Control of Growth of the Higher Plant" Mem.Fac.Eng.Kyushu Univ.50. 377-393 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 江崎 秀: "2次元電気化学的パタ-ンの表面電位を用いた解析" 九大工学集報. 63. 315-322 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Shu Ezaki: "Electrical Stimulation on the Growth of a Root of the Higher Plant" Trans.IEICE. E73. 922-927 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Tetsuya Matsuno: "Entrainment of Electrochemical Spatial Pattern between Unicellular Biological Systems" Forma. 5. 135-152 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 田中 千佳子: "側根の成長に及ぼす電界およびpHの効果" 近畿大学九州短大研究紀要. 20. 1-9 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 都甲 潔: "多細胞系における自己組織化と成長の電気的制御" 生物物理. 31. 149-154 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Shu Ezaki: "Electropism by DC Electric Field in a Root of the Higher Plant" IEICE Trans.E74. 2634-2641 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Kazuyuki Imagawa: "Electrical Potentioals during Grovitropism in Bean Epicotyls" Plant Physiol.97. 193-196 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] K. Toko, C. Tanaka, S. Ezaki, S. Iiyama, and K. yamafuji: "Growth and electric current flowing at the surface of stems" Protoplasm. 154. 71-73 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] M. Souda, K. Toko, K. Hayashi, T. Fujiyoshi, S. Ezaki, and K. Yamafuji: "Relationship between growth and electric oscillations in bean roots" Plant. Physiol. 93. 532-536 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] K. Toko, M. Souda, T. Matsuno, and K. Yamafuji: "Oscillations of electrical potential along a root of a higher plant" Biophsy. J. 57. 269-279 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] S. Ezaki, K. Toko, Members and K. Yamafuji: "Electrical stimulation on the growth of a root of the higher plant" Trans. IEICE. E73. 922-927 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] S. Ezaki, S. Hamada, T, Fujiyoshi, K. Toko, and K. Yamafuji: "Two-dimensional analysis of electrochemical pattern with a surface potential" Technology Reports Kyushu Univ.63. 315-322 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Matuno, K. Toko, T. Fujiyoshi, K. Yamafuji, and K. Ogata: "Entrainment of electrochemical spatial pattern between unicellular biological systems" Forma. 5. 135-152 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] C. Tanaka, S. Iiyama, S. Ezaki, K. Toko, and K. Yamafuji: "Effect of electric field and pH on the growth of lateral roots" Memoirs Kinki Kyushu Junior College Kinki Univ.20. 1-9 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] S. Ezaki, K. Toko, K. Yamafuji, and C. Tanaka: "Electrical control of growth of the higher plant" Memoirs Faculty Engineering Kyushu Univ.50. 377-393 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] K. Toko, S. Ezaki, and K. Ymafuji: "Self-organization and electrical control of the growth of multicellular systems" Biophysics. 31. 149-154 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] K. Imagawa, K. Toko, S. Ezaki, K. Hayashi, and K. Yamafuji: "Electrical potentials during gravitrpism in bean epicotyls" Plant Physiol. 97. 193-196 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] S. Ezaki, K. Toko, Members and K. Yamafuji: "Electrotropism by DC electric filed in a root of the higher plant" IEICE Trans.E74. 2634-2641 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Kiyoshi Toko: "Growth and Electric Current Flowing at the Surface of Stems" Protoplasma. 154. 71-73 (1990)

    • Related Report
      1991 Annual Research Report
  • [Publications] Kiyoshi Toko: "Oscillations of Electrical Potential along a Root of a Higher Plant" Biophys.J.57. 269-279 (1990)

    • Related Report
      1991 Annual Research Report
  • [Publications] Masaaki Souda: "Relationship between Growth and Electric Oscillations in Bean Roots" Plant Physiol.93. 532-536 (1990)

    • Related Report
      1991 Annual Research Report
  • [Publications] Shu Ezaki: "Electrical control of Growth of the Higher Plant" Mern.Fac.Eng.Kyushu Univ.50. 377-393 (1990)

    • Related Report
      1991 Annual Research Report
  • [Publications] 江崎 秀: "2次元電気化学的パタ-ンの表面電位を用いた解析" 九大工学集報. 63. 315-322 (1990)

    • Related Report
      1991 Annual Research Report
  • [Publications] Shu Ezaki: "Electrical Stimulation on the Growth of a Root of the Higher Plant" Trans.IEICE. E73. 922-927 (1990)

    • Related Report
      1991 Annual Research Report
  • [Publications] Tetsuya Matsuno: "Entrainment of Eleutrochemical spatial Pattern between Unicellular Biolgical Systems" Forma. 5. 135-152 (1990)

    • Related Report
      1991 Annual Research Report
  • [Publications] 田中 千佳子: "側根の成長に及ぼす電界およびpHの効果" 近畿大学九州短大研究紀要. 20. 1-9 (1990)

    • Related Report
      1991 Annual Research Report
  • [Publications] 都甲 潔: "多細胞系における自己組織化と成長の電気的制御" 生物物理. 31. 149-154 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Shu Ezaki: "Electropism by DC Electric Field in a Root of the Higher Plant" IEICE Trans.E74. 2634-2641 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Kazuyuki Imagawa: "Electrical Potentials during Grovitropism in Bean Epicotyls" Plant Physiol.97. 193-196 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Kiyoshi Toko: "Growth and Electric Current Flowing at the Surface of Stems" Protoplasma. 154. 71-73 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Kiyoshi Toko: "Oscillations of Electrical Potential along a Root of a Higher Plant" Biophys.J.57. 269-279 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Masaaki Souda: "Relationship between Growth and Electric Oscillations in Bean Roots" Plant Physiol.93. 532-536 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Shu Ezaki: "Electrical Control of Growth of the Higher Plant" Mem.Fac.Eng.Kyushu Univ.50. 377-393 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 江崎 秀: "2次元電気化学的パタ-ンの表面電位を用いた解析" 九大工学集報. 63. 315-322 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Shu Ezaki: "Electrical Stimulation on the Growth of a Root of the Higher Plant" Trans.IEICE. E73. 922-927 (1990)

    • Related Report
      1990 Annual Research Report

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Published: 1990-04-01   Modified: 2016-04-21  

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