Inhibition and recovery of growth processes in roots of pisum sativum L. Exposed to 60‐Hz electric fields
- 1 January 1981
- journal article
- research article
- Published by Wiley in Bioelectromagnetics
- Vol. 2 (4), 329-340
- https://doi.org/10.1002/bem.2250020405
Abstract
Roots of Pisum sativum L. were chronically exposed in aqueous inorganic nutrient medium to 60-Hz electric fields between 140 and 490 V/m (growth medium conductivity ∼ 0.08 S/m). The growth rate, meristematic mitotic index, and growth rate recovery of the roots were determined. At 140 V/m there was no perturbation in growth rate or mitotic index. At 430 V/m the growth rate and the mitotic index were reduced. The mitotic index had a maximum depression (∼ 55% of control), which occurred at 4 h. The depression in growth rate was immediate and constant over time. When roots were exposed to an electric field at 430 V/m for 2 days, the growth rate was depressed by about 40%. When the field was terminated, the growth rate steadily increased and was almost normal after 5 days. At 490 V/m root growth rate was almost completely arrested. According to these results, there is a narrow range of induced membrane potentials that span the range from slightly altered to almost completely arrested growth rates.Keywords
This publication has 33 references indexed in Scilit:
- 60 Hz electric field parameters associated with the perturbation of a eukaryotic cell systemRadiation and Environmental Biophysics, 1980
- Statistical analysis of root growth rate determinationsEnvironmental and Experimental Botany, 1980
- Natural H+ Currents Traverse Growing Roots and Root Hairs of Barley (Hordeum vulgare L.)Plant Physiology, 1979
- A study of dielectric membrane breakdown in theFucus eggThe Journal of Membrane Biology, 1979
- Cell Arrest in G1 and G2 of the Mitotic Cycle of Vicia Faba Root MeristemsAmerican Journal of Botany, 1973
- Analysis of plant root electropotentialsJournal of Theoretical Biology, 1972
- Studies on the relationships between cell population and growth kinetics of root meristemsExperimental Cell Research, 1967
- THE BIO-ELECTRIC POTENTIALS OF PLANTS AND THEIR FUNCTIONAL SIGNIFICANCE: I. AN ELECTROKINETIC THEORY OF TRANSPORTCanadian Journal of Botany, 1957
- GALVANOTAXIS OF SLIME MOLDThe Journal of general physiology, 1951
- THE EFFECT OF LIGHT ON THE ELECTRICAL POLARITY AND THE RATE OF ELONGATION OF THE AVENA COLEOPTILEPlant Physiology, 1946