Medical/biological Study (experimental study)
Effects of radiofrequency electromagnetic fields on seed germination and root meristematic cells of Allium cepa L. med./biol. By: Tkalec M, Malaric K, Pavlica M, Pevalek-Kozlina B, Vidakovic-Cifrek Z
Published in: Mutat Res 2009; 672 (2): 76 - 81 ( PubMed Entry , Journal web site )
Aim of study (according to author)
To examine the effects of radiofrequency electromagnetic fields on seed germination, root growth as well as mitotic activity and induction of chromosome aberrations in root meristematic cells of onions.
Seeds were exposed to electromagnetic fields with varying frequency, field strength and exposure duration. For each exposure and the corresponding control group five petri dishes with 10 seeds each were prepared.
- genotoxicity/mutation: cytogenic and genotoxic effects in plants
effects on growth of plants
General category: radio frequency field
FIELD View further expo parameters
plant (species/strain): onion (Allium cepa)
investigation on living organism
cytogenic and genotoxic effects: cytogenic analysis of root tips (mitotic indices, frequencies of mitotic phases, mitotic abnormalities, chromatin aberrations)
- others: effects on growth of plants: germination and root growth (photomicrograph)
time of investigation: after exposure
Main outcome of study (according to author)
Germination rates and root length did not change significantly after exposure to radiofrequency fields under any of the experimental conditions.
An increase of the mitotic index in root tips was observed at 900 MHz after exposure to higher field strengths or modulated fields, while a 2-hour exposure to lower field strengths at 900 MHz as well as most of the treatments at 400 MHz did not have any effect compared with control groups (except for modulated fields). At 400 MHz mitotic and chromosomal abnormalities were found only after exposure to higher field intensities and to a modulated field, while at 900 MHz they were found after all investigated exposures.
Radiofrequency field exposure can induce mitotic abnormalities in root meristematic cells that could be due to impairments of the mitotic spindle. The effects depend on the field frequencies, field strengths and modulation.
(Study character: medical/biological study, experimental study, full/main study)
Study funded byRelated articles
- Singh HP et al. (2012): Cell phone electromagnetic field radiations affect rhizogenesis through...
- Hintzsche H et al. (2011): Terahertz radiation induces spindle disturbances in human-hamster hybrid cells.
- Schrader T et al. (2011): Spindle disturbances in human-hamster hybrid (A(L)) cells induced by the...
- Jinapang P et al. (2010): Growth characteristics of mung beans and water convolvuluses exposed to 425-MHz...
- Sharma VP et al. (2010): Cell phone radiations affect early growth of Vigna radiata (mung bean) through...
- Sharma VP et al. (2009): Mobile phone radiation inhibits Vigna radiata (mung bean) root growth by...
- Roux D et al. (2008): High frequency (900 MHz) low amplitude (5 V m-1) electromagnetic field: a...
- Vian A et al. (2007): Plants Respond to GSM-Like Radiations.
- Beaubois E et al. (2007): Intercellular communication in plants: evidence for two rapidly transmitted...
- Tkalec M et al. (2007): Exposure to radiofrequency radiation induces oxidative stress in duckweed Lemna...
- Vian A et al. (2006): Microwave Irradiation Affects Gene Expression in Plants
- Roux D et al. (2006): Electromagnetic fields (900 MHz) evoke consistent molecular responses in tomato...
- Kalinin LG et al. (2005): [The influence of a low- and high-frequency electromagnetic fields on seeds]
- Tkalec M et al. (2005): Influence of 400, 900, and 1900 MHz electromagnetic fields on Lemna minor...
- Tafforeau M et al. (2004): Plant sensitivity to low intensity 105 GHz electromagnetic radiation.
- Magone I (1996): The effect of electromagnetic radiation from the Skrunda Radio Location Station...
- Selga T et al. (1996): Response of Pinus sylvestris L. needles to electromagnetic fields. Cytological...
- Haider T et al. (1994): Clastogenic effects of radiofrequency radiations on chromosomes of...
- Bigu-del-Blanco J et al. (1977): Effects of low-level microwave radiation on germination and growth rate in corn...
Glossary: aberrations, abnormalities, amplitude modulation, biological, cells, chromatin, chromosomal, control groups, electric field strength, electromagnetic fields, endpoint, exposed, exposure, field strengths, frequencies, full/main study, genotoxic, germination, growth, induction, MHz, mitotic, mitotic index, modulated, mutation, organism, petri dishes, plants, radiofrequency, significantly, species, spindle, strain
© 1997 - 2013, Research Center for Bioelectromagnetic Interaction (femu - RWTH Aachen University, Germany).
The informational contents of the EMF-Portal are available free of charge for personal and strictly non-commercial purposes. The informational contents of the EMF-Portal may be retrieved, read or printed, but not (i) copied, (ii) changed or (iii) saved in any format, neither electronically nor on other storage media. Permissions for publication, reproduction, commercial purposes or third party propagation of contents of the EMF-Portal – including partial excerpts or revised formats – have to be obtained from the femu Aachen University-copyright holders. By retrieving, reading or printing these documents you expressly state your agreement with all conditions in the fine print.