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The effect of electromagnetic radiation from the Skrunda Radio Location Station on Spirodela polyrhiza (L.) Schleiden cultures
DOI
    10.1016/0048-9697(95)04922-3
Abstract
Abstract The effect of electromagnetic radiation from the Skrunda Radio Location Station was studied on the vegetative growth and morphology of the duckweed Spirodela polyrhiza (L.) Schleiden plant in the next generation. The impact of plant development stage and length of the exposure period were examined. The effect of short-term (5-day) exposures of Spirodela cultures depended on the stage of development at the time of exposure. Generally, the vegetative reproduction rate was accelerated in the first 20 days after the end of exposure. Exposure of plants just beginning formation lowered the vegetative growth rate. Eighty-eight-hour exposure caused the appearance of some abnormal individuals after 30 days of growth. At 55 days, various morphological and developmental abnormalities appeared in 6–10 daughter plants from 10 exposed mother plants, compared with 0.1 plants per 10 in the control condition. Plants developed completely to daughter fronds under exposure from the electromagnetic field had a shorter life-span (67 days compared to 87 days in the control) and fewer subsequent daughters (total eight compared to 10 in the control group).
  • References (10)
  • Cited By (27)
Madeleine F. Barnothy1
Estimated H-index: 1
I. Theoretical Considerations.- 1. Introduction.- 2. Simple Theoretical Models for Magnetic Interactions with Biological Units.- 3. Basic Concepts Related to Magnetic Fields and Magnetic Susceptibility.- 4. The Vector Character of Field and Gradient and Its Possible Implications for Biomagnetic Experiments and Space Travel.- 5. Rotational Diffusion in a Magnetic Field and Its Possible Magnetobiological Implications.- 6. Distortion of the Bond Angle in a Magnetic Field and Its Possible Magnetobio...
Cited 282 Source
T. Kalniņš1
Estimated H-index: 1
(Latvian Academy of Sciences),
R. Križbergs1
Estimated H-index: 1
(Latvian Academy of Sciences),
A. Romančuks1
Estimated H-index: 1
(Latvian Academy of Sciences)
This paper describes measurements of electromagnetic radiation intensity around the Skrunda Radio Location Station that were made in an attempt to provide the best possible data for biological effect studies, considering the available equipment and knowledge. The measured intensities fit expected patterns with distance from the source. The measured pulse intensities radiated by the Skrunda Radio Location Station (RLS) are considered to be more relevant for biologists. The variability of intensit...
Cited 9 Source Cite this paper
Wuncheng Wang1
Estimated H-index: 1
Phytotoxicity tests using higher plants in general are infrequently used as a part of ecotoxicology. Many reports assess herbicide toxicity merely on the basis of faunal species tests. This is inadequate because the herbicide impact is much greater on flora than on fauna. Environmental pollution by herbicides was likely to have been quite wide-spread during the past years (1964–1984) when the use of herbicides grew five-fold. When herbicides reach non-target areas, they can cause unacceptable ha...
Ref 83Cited 113 Source Cite this paper
Alaka Srivastava4
Estimated H-index: 4
(Banaras Hindu University),
V. S. Jaiswal9
Estimated H-index: 9
(Banaras Hindu University)
Summary Effect of cadmium on turion formation and germination of Spirodela polyrrhiza L. (SP 20 ) was studied. Cadmium inhibited the general growth of the plants but induced and stimulated turion formation. In control media, plants could produce turions after about 30 days of inoculation, in the presence of 10mg1 -1 of Cd, turion formation started even after 10 days of exposure. However cadmium inhibited the general germination rate of turions.
Ref 16Cited 9 Source Cite this paper
1990 in environmental research [IF: 3.83]
Wuncheng Wang1
Estimated H-index: 1
Duckweed commonly refers to a group of floating, flowering plants of the family Lemnaceae. Duckweed plants are fast growing and widely distributed. They are easy to culture and to test. Some reports suggest that duckweed plants are tolerant to environmental toxicity. Other studies, however, indicate that duckweed plants are as sensitive to toxicity as other aquatic species. Duckweed plants are especially suitable for use in complex effluent bioassays, and for testing herbicide pollution in the a...
Ref 78Cited 180 Source Cite this paper
D. Križaj1
Estimated H-index: 1
,
V. Valenčič1
Estimated H-index: 1
Biological systems are composed of subsystems having optima related to different environmental conditions. Roots and shoots in plants represent one such example—differential growth of root and shoot tissue in plants is coordinated by control mechanisms where a stimulatory effect in one often is inhibitory for the other. Can different intensities of magnetic field elicit differential responses in both subsystems? A 50-Hz magnetic field was applied, and the length of shoots and roots in water cres...
Ref 15Cited 19 Source Cite this paper
W. Grundler1
Estimated H-index: 1
,
F. Keilmann1
Estimated H-index: 1
(Max Planck Society),
H. Fröhlich1
Estimated H-index: 1
Abstract The growth behaviour of yeast cultures in aqueous suspension was monitored by visible light extinction and showed an exponential growth rate reproducible within ±3% limits. When the cultures were irradiated by c.w. microwave fields of a few mW/cm 2 the growth rate either stayed constant or was considerably enhanced or reduced depending on the frequency around 42 GHz. A spectral fine structure with a width of the order of 10 MHz was observed. Careful temperature monitoring excludes a tri...
Ref 4Cited 99 Source Cite this paper
Douglas W. Dunlop1
Estimated H-index: 1
(University of Wisconsin–Milwaukee),
Barbara L. Schmidt1
Estimated H-index: 1
(University of Wisconsin–Milwaukee)
The effects of magnetic fields on the growth and development of organisms have been studied for over a century. A variety of plant material has been used in such experiments, including both vascular and nonvascular plants. These studies have been largely concerned with growth responses, rather than anatomical effects. The investigations described in this chapter include not only growth responses of a filamentous alga and the adventitious roots of several angiosperms, but also the effects of hete...
Ref 3Cited 11 Download Pdf Cite this paper
  • References (10)
  • Cited By (27)
A.A. Khalafallah1
Estimated H-index: 1
,
Samira M. Sallam1
Estimated H-index: 1
The objective of the present study was to investigate the changes of germination, growth rate and absorbance efficiency of photosynthetic pigments of maize grains after exposed to microwaves (MW). Experiment was carried out by exposing maize plants to continuous microwaves energy at (935.2-960.2 MHz with intensities 0.07-0.15 mW/cm 2 ). The test plants and the control plants were subjected to the same environment during four weeks. The hypothesis was that plants exposed to MW would be different ...
Ref 19Cited 12 Source
Objectives: To determine if AC electromagnetic fields can be used to improve growth of food crops. This would reduce and minimize contamination of yield that is associated with application of fertilizers to promote plant growth and chemicals to control pests and diseases. Methodology and results: Alternating 50Hz electromagnetic fields generated by Helmholtz coil of 0, 5, 10, 30 and 60mT were applied to germinated Rosecoco bean (Phaseolus vulgaris L.) seedlings. For a given sample, seedlings wer...
Ref 16 Download Pdf
Neil J. Cherry1
Estimated H-index: 1
The brain is a very sensitive Bioelectromagnetic organ sat through classical resonance processes can be halted and damage of external electromagnetic fields and radiation. This review will explore the possibility that this could result in violence enhanced rates of homicide. The evidence that electromagnetic fields and radiation electromagnetic are genotoxic means that exposure to any electromagnetic fields and radiation will enhance cell death (Apoptosis). The natural ageing process involves ox...
Ref 219Cited 2 Download Pdf
The widespread and massively growing rate of usage of mobile phones around the world is leading to having over a billion people using their phones most days. Initially we had bag phones and car phones. Over 10 years ago we moved to portable handsets which originally were analogue phones and now most of the phones are digital. With the phone held against the ear the exposure of the head to modulated or digitally pulsed microwaves from the antenna, is very high. The head is a very sensitive bioele...
Ref 163 Download Pdf
Neil J. Cherry1
Estimated H-index: 1
Thousands of people are using cell phones for hours each day. They are exposing a very sensitive organ, their brain, to higher mean intensities than military personnel are exposed to when repairing radar. The military personnel show significant increases in cancer and a wide range of illnesses. Even at the very low mean levels that people experience living within 10 km of radio and TV towers, significant increases in cancer has been observed.
Ref 118Cited 1 Source
Danguole Montvydiene3
Estimated H-index: 3
,
Danute Marciulioniene3
Estimated H-index: 3
The toxicities of copper, chromium, cadmium, nickel, manganese, zinc, and lead ions and various concentrations of mixtures of them were studied using the aquatic plant Spirodela polyrrhiza and the terrestrial plant Lepidium sativum. The composition of the model mixture was based on average analytical data of the annual amounts of representative heavy metals (HM) in wastewater discharged from the Ignalina Nuclear Power Plant (Lithuania) during 1996. The observed and predicted effects of the HM mi...
Ref 32Cited 46 Source Cite this paper
Margarita Kouzmanova3
Estimated H-index: 3
(Sofia University),
M. Dimitrova5
Estimated H-index: 5
(Sofia University),
D. Dragolova2
Estimated H-index: 2
(Sofia University)
... more
ABSTRACTAccelerated and widespread use of different communication systems and modern electronic equipment increases exposure to radiofrequency electromagnetic fields (RF EMF) and raises serious concerns about the biological and health-related effects of RF radiation. Numerous studies document various biological effects of RF radiation. However, most of these findings derive from epidemiological, animal and in vitro studies while only a few investigate effects of RF radiation on plants.The purpos...
Ref 15Cited 8 Source Cite this paper