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Li Q, Tian M, Teng J, Gao P, Tang BQ, Wu H. Radio frequency-induced superoxide accumulation affected the growth and viability of Saccharomyces cerevisiae. Int Microbiol 2020; 23:391-396. [PMID: 31898034 DOI: 10.1007/s10123-019-00111-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 11/24/2019] [Accepted: 11/29/2019] [Indexed: 12/26/2022]
Abstract
With the development of the electric technologies, the biological effects of electromagnetic fields (EMF) were widely studied. However, the results remain controversial and the biophysical mechanisms are still unknown. To our knowledge, little studies pay attention to the radio frequency (RF) of 2.6-5 MHz. In the present study, we investigated the effect of these radio frequencies on the growth and cell viability of Saccharomyces cerevisiae at very low power density below 0.1 mT. The result appeared to be time-dependent. The growth of the yeast cells was obviously affected by the RF-EMF with a 43.5% increase when exposed for 30 h, and the growth-promoting effect decreased along with the radiation time and eventually turned to an inhibiting effect retarding growth by 20.7% at 89 h. The cell viability was improved to 70.1% at 8 h and reduced by 33.5% at 28 h. The superoxide accumulated in exposed cells as radiation time increased which may lead to the inhibition of viability and growth of the cells. However, the efficient frequency, power density, and exposure dosage await further investigation. Nevertheless, the wave band studied in this research is effective to produce biological effect, and therefore, it may provide an optional new radio frequency which is valuable for the development and utilization in therapy technique and medical use.
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Affiliation(s)
- Qing Li
- Institute of Life Science & Technology, ENN Group, South District of ENN Industrial Park, Langfang, 065001, Hebei, China
| | - Miao Tian
- Institute of Life Science & Technology, ENN Group, South District of ENN Industrial Park, Langfang, 065001, Hebei, China
| | - Jie Teng
- Institute of Life Science & Technology, ENN Group, South District of ENN Industrial Park, Langfang, 065001, Hebei, China
| | - Peng Gao
- Institute of Life Science & Technology, ENN Group, South District of ENN Industrial Park, Langfang, 065001, Hebei, China
| | - Bruce Qing Tang
- Institute of Life Science & Technology, ENN Group, South District of ENN Industrial Park, Langfang, 065001, Hebei, China
| | - Hong Wu
- Institute of Life Science & Technology, ENN Group, South District of ENN Industrial Park, Langfang, 065001, Hebei, China.
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2
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Rifna E, Ratish Ramanan K, Mahendran R. Emerging technology applications for improving seed germination. Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2019.02.029] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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3
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Effect of Bio-Availability of Magnetized Water on Different Biological Systems. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2017. [DOI: 10.22207/jpam.11.2.66] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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da Silva JAT, Dobránszki J. Magnetic fields: how is plant growth and development impacted? PROTOPLASMA 2016; 253:231-48. [PMID: 25952081 DOI: 10.1007/s00709-015-0820-7] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Accepted: 04/13/2015] [Indexed: 05/24/2023]
Abstract
This review provides detailed insight on the effects of magnetic fields on germination, growth, development, and yield of plants focusing on ex vitro growth and development and discussing the possible physiological and biochemical responses. The MFs considered in this review range from the nanoTesla (nT) to geomagnetic levels, up to very strong MFs greater than 15 Tesla (T) and also super-weak MFs (near 0 T). The theoretical bases of the action of MFs on plant growth, which are complex, are not discussed here and thus far, there is limited mathematical background about the action of MFs on plant growth. MFs can positively influence the morphogenesis of several plants which allows them to be used in practical situations. MFs have thus far been shown to modify seed germination and affect seedling growth and development in a wide range of plants, including field, fodder, and industrial crops; cereals and pseudo-cereals; grasses; herbs and medicinal plants; horticultural crops (vegetables, fruits, ornamentals); trees; and model crops. This is important since MFs may constitute a non-residual and non-toxic stimulus. In addition to presenting and summarizing the effects of MFs on plant growth and development, we also provide possible physiological and biochemical explanations for these responses including stress-related responses of plants, explanations based on dia-, para-, and ferromagnetism, oriented movements of substances, and cellular and molecular changes.
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Affiliation(s)
| | - Judit Dobránszki
- Research Institute of Nyíregyháza, University of Debrecen, Nyíregyháza, P.O. Box 12, 4400, Hungary.
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Songnuan W, Siriwattanakul U, Kirawanich P. Physiological and Genetic Analyses of Arabidopsis Thaliana Growth Responses to Electroporation. IEEE Trans Nanobioscience 2015; 14:773-9. [PMID: 26316193 DOI: 10.1109/tnb.2015.2472992] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Stress-induced effect on Arabidopsis thaliana seeds due to high-intensity electrical pulses is described. The pulsed electric field (PEF) treatment system was constructed under the concept of electroporation to deliver 10-nanosecond, 5-Hz pulse train with the energy density per pulse up to 4 kJ ·kg (-1). The analysis of the growth responses revealed that the optimal specific energy of ∼ 1 kJ · kg (-1) delivered the positive effect on the early growth with significant enhancement in the germination percentage and leaf area expansion. The same treatment energy, in addition, contributed to the higher level of the gene expression at nearly tenfold (PAD3 and PR1) compared with untreated control. Such optimistic evidences suggest that the PEF treatment may have practical applications such as to stimulate the delayed germination in preserved economical crops and should be preferred over chemical treatments due to its short-term effect.
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Alikamanoğlu S, Yaycılı O, Atak Ç, Rzakoulieva A. Effect of Magnetic Field and Gamma Radiation onPaulowinia TomentosaTissue Culture. BIOTECHNOL BIOTEC EQ 2014. [DOI: 10.1080/13102818.2007.10817412] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Nagaraju M, Reddy KV, Reshma SR, Jareena S. Exposure of Greengram Seeds (Vigna radiate var. radiata) to Static Magnetic Fields: Effects on Germination and a-amylase Activity. ACTA ACUST UNITED AC 2012. [DOI: 10.3923/rjss.2012.106.114] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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8
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Jinapang P, Prakob P, Wongwattananard P, Islam NE, Kirawanich P. Growth characteristics of mung beans and water convolvuluses exposed to 425-MHz electromagnetic fields. Bioelectromagnetics 2010; 31:519-27. [DOI: 10.1002/bem.20584] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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9
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Cakmak T, Dumlupinar R, Erdal S. Acceleration of germination and early growth of wheat and bean seedlings grown under various magnetic field and osmotic conditions. Bioelectromagnetics 2010; 31:120-9. [PMID: 19681058 DOI: 10.1002/bem.20537] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Magnetic field (MF) can have different effects on plant metabolism depending on its application style, intensity, and environmental conditions. This study reports the effects of different intensities of static MF (4 or 7 mT) on seed germination and seedling growth of bean or wheat seeds in different media having 0, 2, 6, and 10 atmosphere (atm) osmotic pressure prepared with sucrose or salt. The germination percentages of the treated seeds were compared with untreated seeds germinated in different osmotic pressure during 7 days of incubation. The application of both MFs promoted the germination ratios of bean and wheat seeds, regardless of increasing osmotic pressure of sucrose or salt. Growth data measured on the 7th day showed that the treated plants grew faster than control. After 7 days of incubation, the mean length of treated seedlings was statistically higher than control plants in all the media. The greatest germination and growth rates in both plants were from the test groups exposed to 7 mT MF. Strikingly, effects of static MF on germination and growth increased positively with increasing osmotic pressure or salt stress compared to their respective controls. On the other hand, MF application caused an increase in dry biomass accumulation of root and shoots of both seedlings; however, this effect was found statistically important in all the conditions for wheat but not for bean, in general.
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Affiliation(s)
- Turgay Cakmak
- Department of Biology, Science Faculty, Atatürk University, Erzurum, Turkey.
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Leelapriya T, Dhilip KS, Sanker Narayan PV. Effect of Weak Sinusoidal Magnetic Field on Germination and Yield of Cotton (Gossypiumspp.). Electromagn Biol Med 2009. [DOI: 10.1081/jbc-120024621] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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11
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Vashisth A, Nagarajan S. Exposure of seeds to static magnetic field enhances germination and early growth characteristics in chickpea (Cicer arietinum L.). Bioelectromagnetics 2008; 29:571-8. [DOI: 10.1002/bem.20426] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Trebbi G, Borghini F, Lazzarato L, Torrigiani P, Calzoni GL, Betti L. Extremely low frequency weak magnetic fields enhance resistance of NN tobacco plants to tobacco mosaic virus and elicit stress-related biochemical activities. Bioelectromagnetics 2007; 28:214-23. [PMID: 17080458 DOI: 10.1002/bem.20296] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Increasing evidence has accumulated concerning the biological effects of extremely low frequency magnetic fields (ELF-MFs) in different plant models. In the present study, effects of ELF-MFs in tobacco plants reacting to tobacco mosaic virus (TMV) with a hypersensitive response (HR) were evaluated. Plants were exposed for 8 or 24 h (either before or after TMV inoculation) to a static MF, at either -17 or 13 microT, combined with a 10 Hz sinusoidal MF with different intensities (25.6 or 28.9 microT). The working variables were the area and number of hypersensitive lesions in leaves. Following ELF-MFs exposure, an increased resistance was detected, particularly after an 8-h treatment, as shown by the decrease in lesion area and number. Moreover, two enzyme activities involved in resistance mechanisms were analyzed: ornithine decarboxylase (ODC) and phenylalanine ammonia-lyase (PAL). Uninoculated leaves previously exposed to ELF-MFs in general showed a significant increase relative to controls in ODC and PAL activities, in particular for 13 microT static MF plus 28.9 microT, 10 Hz sinusoidal MF (24 h) treatment. In conclusion, ELF-MFs seem to influence the HR of tobacco to TMV, as shown by the increased resistance and changes in ODC and PAL activities, indicating the reliability of the present plant model in the study of bioelectromagnetic interactions.
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Affiliation(s)
- Grazia Trebbi
- Dipartimento di Scienze e Tecnologie Agroambientali, Università di Bologna, Italy
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De Souza A, Garcí D, Sueiro L, Gilart F, Porras E, Licea L. Pre-sowing magnetic treatments of tomato seeds increase the growth and yield of plants. Bioelectromagnetics 2006; 27:247-57. [PMID: 16511881 DOI: 10.1002/bem.20206] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The effects of pre-sowing magnetic treatments on growth and yield of tomato (cv Campbell-28) were investigated under field conditions. Tomato seeds were exposed to full-wave rectified sinusoidal non-uniform magnetic fields (MFs) induced by an electromagnet at 100 mT (rms) for 10 min and at 170 mT (rms) for 3 min. Non-treated seeds were considered as controls. Plants were grown in experimental plots (30.2 m(2)) and were cultivated according to standard agricultural practices. During the vegetative and generative growth stages, samples were collected at regular intervals for growth rate analyses, and the resistance of plants to geminivirus and early blight was evaluated. At physiological maturity, the plants were harvested from each plot and the yield and yield parameters were determined. In the vegetative stage, the treatments led to a significant increase in leaf area, leaf dry weight, and specific leaf area (SLA) per plant. Also, the leaf, stem, and root relative growth rates of plants derived from magnetically treated seeds were greater than those shown by the control plants. In the generative stage, leaf area per plant and relative growth rates of fruits from plants from magnetically exposed seeds were greater than those of the control plant fruits. At fruit maturity stage, all magnetic treatments increased significantly (P < .05) the mean fruit weight, the fruit yield per plant, the fruit yield per area, and the equatorial diameter of fruits in comparison with the controls. At the end of the experiment, total dry matter was significantly higher for plants from magnetically treated seeds than that of the controls. A significant delay in the appearance of first symptoms of geminivirus and early blight and a reduced infection rate of early blight were observed in the plants from exposed seeds to MFs. Pre-sowing magnetic treatments would enhance the growth and yield of tomato crop.
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Affiliation(s)
- A De Souza
- Laboratory of Non-Ionizing Radiation, Center for Environmental Research, Services and Technologies, Agricultural Research Institute Jorge Dimitrov, Granma, Cuba.
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Sandu DD, Goiceanu IC, Ispas A, Creanga I, Miclaus S, Creanga DE. A preliminary study on ultra high frequency electromagnetic fields effect on black locust chlorophylls. ACTA BIOLOGICA HUNGARICA 2005; 56:109-17. [PMID: 15813219 DOI: 10.1556/abiol.56.2005.1-2.11] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Chlorophylls were quantitatively studied in the leaves of black locust (Robinia pseudoacacia L.) seedlings exposed to electromagnetic fields of high frequency. Exposure system was designed and built up to make possible simultaneous exposure of seedling lots (3 months old) to low power density electromagnetic fields corresponding to a frequency of 400 MHz. After three weeks of daily exposures (1, 2, 3 and 8 hours), chlorophyll levels were measured using adequate spectral device. Statistical analysis of experimental results was performed by means of t-test to identify significant modifications induced by electromagnetic treatment in exposed samples in comparison to the control. Chlorophyll-a as well as chlorophyll-b level was found to decrease except the exposure time of two hours, where a considerable enhancement was noticed. It was revealed that the ratio of the two main types of chlorophyll was decreasing logarithmically to the increase of daily exposure time.
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Affiliation(s)
- D D Sandu
- Faculty of Physics, "Al I Cuza" University, 6600 lasi
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Ružič R, Jerman I. WEAK MAGNETIC FIELD DECREASES HEAT STRESS IN CRESS SEEDLINGS. Electromagn Biol Med 2002. [DOI: 10.1081/jbc-120003112] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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