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. 1990 Jun;93(2):532-6.
doi: 10.1104/pp.93.2.532.

Relationship between Growth and Electric Oscillations in Bean Roots

M Souda  1 , K Toko, K Hayashi, T Fujiyoshi, S Ezaki, K Yamafuji
Affiliations

Relationship between Growth and Electric Oscillations in Bean Roots

M Souda et al. Plant Physiol. 1990 Jun.

Abstract

Extracellular and intracellular electric potentials in bean roots are known to show electric oscillations along the longitudinal axis with a period of several minutes. The relationship between growth and the electric oscillations was studied using roots of adzuki (Phaseolus chrysanthos). We measured surface electric potentials with a multielectrode apparatus while simultaneously measuring elongation using a CCD camera and monitor. Roots having an electric oscillation grew faster than roots with no oscillation. Furthermore, elongation rate was higher in roots with higher oscillation frequency. Oscillation frequency had a strong dependence on temperature; i.e. Q(10) was estimated at 1.7. These results suggest a correlation between electric oscillation and elongation.

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References

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