IEICE TRANSACTIONS on Fundamentals
Electrotropism by DC Electric Field in a Root of the Higher Plant
Summary :
Primary roots of adzuki bean were incubated under an external electric field in the transverse direction across the root. A root was laid horizontally in a aqueous solution, and the electric field was generated by flowing the electric current in the solution. Roots bent to the side of the positive electrode. This bending tendency increased with increasing the electric field. The surface-electric potential and pH distributions were measured under the electric field and the normal condition. The application of electric field caused the asymmetries of the electric potential pattern and the acidification. At the activated side in the growth, corresponding to the electrically negative side of the root, the amplitudes of the potential and the acidification were found to increase whereas the opposite tendency was observed at the opposite side. The results with a theoretical consideration suggest that the symmetry of the growth was broken by an asymmetrical H+ re-distribution made by the external electrical force.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E74-A No.9 pp.2634-2641
- Publication Date
- 1991/09/25
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- PAPER
- Category
- Nonlinear Circuits and Systems
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Shu EZAKI, Kiyoshi TOKO, Kaoru YAMAFUJI, "Electrotropism by DC Electric Field in a Root of the Higher Plant" in IEICE TRANSACTIONS on Fundamentals,
vol. E74-A, no. 9, pp. 2634-2641, September 1991, doi: .
Abstract: Primary roots of adzuki bean were incubated under an external electric field in the transverse direction across the root. A root was laid horizontally in a aqueous solution, and the electric field was generated by flowing the electric current in the solution. Roots bent to the side of the positive electrode. This bending tendency increased with increasing the electric field. The surface-electric potential and pH distributions were measured under the electric field and the normal condition. The application of electric field caused the asymmetries of the electric potential pattern and the acidification. At the activated side in the growth, corresponding to the electrically negative side of the root, the amplitudes of the potential and the acidification were found to increase whereas the opposite tendency was observed at the opposite side. The results with a theoretical consideration suggest that the symmetry of the growth was broken by an asymmetrical H+ re-distribution made by the external electrical force.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e74-a_9_2634/_p
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@ARTICLE{e74-a_9_2634,
author={Shu EZAKI, Kiyoshi TOKO, Kaoru YAMAFUJI, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Electrotropism by DC Electric Field in a Root of the Higher Plant},
year={1991},
volume={E74-A},
number={9},
pages={2634-2641},
abstract={Primary roots of adzuki bean were incubated under an external electric field in the transverse direction across the root. A root was laid horizontally in a aqueous solution, and the electric field was generated by flowing the electric current in the solution. Roots bent to the side of the positive electrode. This bending tendency increased with increasing the electric field. The surface-electric potential and pH distributions were measured under the electric field and the normal condition. The application of electric field caused the asymmetries of the electric potential pattern and the acidification. At the activated side in the growth, corresponding to the electrically negative side of the root, the amplitudes of the potential and the acidification were found to increase whereas the opposite tendency was observed at the opposite side. The results with a theoretical consideration suggest that the symmetry of the growth was broken by an asymmetrical H+ re-distribution made by the external electrical force.},
keywords={},
doi={},
ISSN={},
month={September},}
Copy
TY - JOUR
TI - Electrotropism by DC Electric Field in a Root of the Higher Plant
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 2634
EP - 2641
AU - Shu EZAKI
AU - Kiyoshi TOKO
AU - Kaoru YAMAFUJI
PY - 1991
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E74-A
IS - 9
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - September 1991
AB - Primary roots of adzuki bean were incubated under an external electric field in the transverse direction across the root. A root was laid horizontally in a aqueous solution, and the electric field was generated by flowing the electric current in the solution. Roots bent to the side of the positive electrode. This bending tendency increased with increasing the electric field. The surface-electric potential and pH distributions were measured under the electric field and the normal condition. The application of electric field caused the asymmetries of the electric potential pattern and the acidification. At the activated side in the growth, corresponding to the electrically negative side of the root, the amplitudes of the potential and the acidification were found to increase whereas the opposite tendency was observed at the opposite side. The results with a theoretical consideration suggest that the symmetry of the growth was broken by an asymmetrical H+ re-distribution made by the external electrical force.
ER -
English
