Abstract:
:We previously found that flowering of Arabidopsis was suppressed by near-null magnetic field, which was related to the modification of cryptochrome. To disclose the physiological mechanism of this effect, we detected gibberellin (GA) levels and expressions of GA biosynthetic and signaling genes in wild type Arabidopsis plants and cryptochrome double mutant, cry1/cry2, grown in near-null magnetic field. We found that levels of GA4 , GA9 , GA34 , and GA51 in wild type plants in near-null magnetic field were significantly decreased compared with local geomagnetic field controls. However, GA levels in cry1/cry2 mutants in near-null magnetic field were similar to controls. Expressions of three GA20-oxidase (GA20ox) genes (GA20ox1, GA20ox2, and GA20ox3) and four GA3-oxidase (GA3ox) genes (GA3ox1, GA3ox2, GA3ox3, and GA3ox4) in wild type plants in near-null magnetic field were significantly reduced compared with controls, while expressions of GA20ox4, GA20ox5, GA2-oxidase (GA2ox) genes, and GA signaling-related genes in wild type plants in near-null magnetic field were not significantly different from controls. In contrast, expressions of all the detected GA biosynthetic and signaling genes in cry1/cry2 mutants were not affected by near-null magnetic field. Moreover, transcriptions of flowering-related genes, LFY and SOC1, in wild type plants were downregulated by near-null magnetic field, while they were not affected by near-null magnetic field in cry1/cry2 mutants. Our results suggest that the effect of near-null magnetic field on Arabidopsis flowering is GA-related, which is caused by cryptochrome-involved suppression of GA biosynthesis. Bioelectromagnetics. 38:1-10, 2017. © 2016 Wiley Periodicals, Inc.
journal_name
Bioelectromagneticsjournal_title
Bioelectromagneticsauthors
Xu C,Yu Y,Zhang Y,Li Y,Wei Sdoi
10.1002/bem.22004subject
Has Abstractpub_date
2017-01-01 00:00:00pages
1-10issue
1eissn
0197-8462issn
1521-186Xjournal_volume
38pub_type
杂志文章abstract::The level of exposure of laboratory animals to 60-Hz electric fields is commonly specified in terms of the unperturbed field strength present before the introduction of experimental subjects and their cages. In the research reported in this paper, rats were housed in two parallel rows in 12.4 cm x 25.1 cm x 10.2 cm hi...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250020105
更新日期:1981-01-01 00:00:00
abstract::The aim of the present study was to determine millimeter wave (MMW) absorption by blood vessels traversing the subcutaneous fat layer of murine skin. Most calculations were performed using the finite-difference time-domain (FDTD) technique. We used two types of models: (1) a rectangular block of multilayer tissue with...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20658
更新日期:2011-09-01 00:00:00
abstract::The effects of an extremely low frequency (ELF) magnetic field on the sex hormones and other fertility parameters of adult male Sprague-Dawley rats were investigated. Adult male rats were exposed to a 50 Hz sinusoidal magnetic field at approximately 25 microT (rms) for 18 consecutive weeks. There were no significant e...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20186
更新日期:2006-02-01 00:00:00
abstract::Ejaculated, density purified, human spermatozoa were exposed to pulsed 900 MHz GSM mobile phone radiation at two specific absorption rate levels (SAR 2.0 and 5.7 W/kg) and compared with controls over time. Change in sperm mitochondrial membrane potential was analysed using flow cytometry. Sperm motility was determined...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20390
更新日期:2008-05-01 00:00:00
abstract::No causal treatment for chemotherapy-induced peripheral neuropathy (CIPN) is known. Therefore, there is an urgent need to develop a therapy for CIPN. Only scarce clinical data are available concerning magnetic field therapy (MFT) in this context. We conducted a unicentric, randomized, double-blind, placebo-controlled ...
journal_title:Bioelectromagnetics
pub_type: 杂志文章,随机对照试验
doi:10.1002/bem.22005
更新日期:2017-02-01 00:00:00
abstract::Sprague-Dawley male rats, maintained in a 14:10 h light:dark cycle were exposed for 30 days (starting at 56 days of age) to a 65 kV/m, 60 Hz electric field or to a sham field for 20 h/day beginning at dark onset. Pineal N-acetyltransferase (NAT), hydroxy-indole-o-methyl transferase (HIOMT), and melatonin as well as se...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250150506
更新日期:1994-01-01 00:00:00
abstract::Findings from prior studies of possible health and physiological effects from mobile phone use have been inconsistent. Exposure periods in provocation studies have been rather short and personal characteristics of the participants poorly defined. We studied the effect of radiofrequency field (RF) on self-reported symp...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20379
更新日期:2008-04-01 00:00:00
abstract::Heat shock proteins (HSPs) are rapidly induced by a variety of stressors, including heat shock, ethanol, heavy metals, UV, and gamma-radiation. Mitogen-activated protein kinases (MAPKs) are also involved in the stress transduction pathways in all eukaryotes. In this study, we attempted to determine whether radiofreque...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20235
更新日期:2006-10-01 00:00:00
abstract::Hyperthermia has been used in conjunction with radiation and chemotherapy for cancer treatment. When using electromagnetic heating, applicators are critical components in contact with or in proximity to patients and can be the determining factor for effective and safe treatment. Tissue absorption of electromagnetic en...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250130612
更新日期:1992-01-01 00:00:00
abstract::We exposed normal human epidermal keratinocytes to short duration, high frequency, and low amplitude electromagnetic fields, similar to that used by mobile phone technologies. We paid particular attention to the control of the characteristics of the electromagnetic environment generated within a mode stirred reverbera...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20641
更新日期:2011-05-01 00:00:00
abstract::A retrospective study on reproductive hazards was performed among 542 employees at Swedish power plants. Questionnaires were answered by 89% of the employees. Data on pregnancies were checked by studying hospital case records. There was a statistically significant, decreased frequency of "normal" pregnancy outcome, al...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250040109
更新日期:1983-01-01 00:00:00
abstract::The objective of the study was to investigate the influence of humidity on analyzing electric field exposure using extremely low frequency (ELF) electric field measurements. The study included 322 measurements in a climate room. We used two commercial three-axis meters, EFA-3 and EFA-300, and employed two measurement ...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.21776
更新日期:2013-07-01 00:00:00
abstract::The aim of the present study was to investigate the influence of 50 Hz sinusoidal magnetic field on Hsp27, Hsp70, and Hsp90 expression in a model of primary culture of porcine aortic endothelial cells (PAEC). We took into consideration the Hsp profile in terms of mRNA expression, protein expression and protein localiz...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20299
更新日期:2007-04-01 00:00:00
abstract::Sixty-Hz magnetic field exposures were measured for 45 adult residents of Maine. Thirty of the subjects resided near rights-of-way (ROWs) with either 345- and 115-kV transmission lines, or ROWs with only 115-kV transmission lines; fifteen resided far from any transmission lines. Personal exposure data for a single 24-...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250130106
更新日期:1992-01-01 00:00:00
abstract::We have shown that 50 Hz sinusoidal magnetic fields within the 5-10 microTesla (microT) rms range cause an intensity-dependent reduction in nerve growth factor (NGF) stimulation of neurite outgrowth (NO) in PC-12 cells. Here we report on the frequency dependence of this response over the 15-70 Hz range at 5 Hz interva...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250160607
更新日期:1995-01-01 00:00:00
abstract::Little is known about the influence of magnetic fields on growth of primitive eukaryotes such as the ciliate Paramecium. The latter are known to exhibit interesting characteristics such as electrotaxis, gravitaxis, and membrane excitability not commonly encountered in higher organisms. This preliminary study reports t...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20172
更新日期:2006-01-01 00:00:00
abstract::In this acceptance address for the Bioelectromagnetics Society's 2001 d'Arsonval Award, Dr. Tenforde reviews the highlights of the nonionizing field aspects of his research and scientific service career. These are focused in four areas: (a). development and application of microelectrophoretic methods to probe the surf...
journal_title:Bioelectromagnetics
pub_type: 传,历史文章
doi:10.1002/bem.10090
更新日期:2003-01-01 00:00:00
abstract::Reports that low-intensity microwave radiation induces heat-shock reporter gene expression in the nematode, Caenorhabditis elegans, have recently been reinterpreted as a subtle thermal effect caused by slight heating. This study used a microwave exposure system (1.0 GHz, 0.5 W power input; SAR 0.9-3 mW kg(-1) for 6-we...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20515
更新日期:2009-12-01 00:00:00
abstract::We have previously demonstrated that exposure of Chinese hamster lung (CHL) cells to 50 Hz magnetic fields (MFs) and/or 12-O-tetradecanoylphorbol-3-acetate (TPA)-inhibited gap junctional intercellular communication (GJIC). To explore and compare the mechanisms of GJIC inhibition induced by extremely low frequency (ELF...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.10070
更新日期:2003-02-01 00:00:00
abstract::To be able to correlate real time membrane potential or ion flux changes with further downstream gene transcription responses due to extremely low frequency (ELF) electromagnetic field (EMF) exposure, we devised an experimental system consisting of a pair of symmetric circular coils. This system can be used on an inve...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.10151
更新日期:2004-01-01 00:00:00
abstract::Different species of ciliates (Paramecium biaurelia, Loxodes striatus, Tetrahymena thermophila) have been taken as model systems to study the effects of extremely low-frequency electromagnetic fields (50 Hz, 0.5-2.0 mT) on the cellular level. A dose-dependent increase in the mean swimming velocity and a decrease in th...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/(sici)1521-186x(1997)18:7<491::aid-bem4>3.
更新日期:1997-01-01 00:00:00
abstract::For 35 years, I have been involved in various bioelectromagnetics research projects including acute and long-term radiofrequency (RF) bioeffects studies, dosimetry, exposure systems, MRI safety, cancer studies involving hyperthermia and electrochemical treatment, development of RF exposure and measurement standards, a...
journal_title:Bioelectromagnetics
pub_type: 传,历史文章,杂志文章
doi:10.1002/bem.20292
更新日期:2007-01-01 00:00:00
abstract::Stress proteins are important in protection during cardiac ischemia/reperfusion (cessation and return of blood flow) and are reportedly induced by electromagnetic (EM) fields. This suggests a possible ischemia protection role for EM exposures. To test this, chick embryos (96 h) were exposed to 60 Hz magnetic fields pr...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/(sici)1521-186x(1998)19:8<498::aid-bem8>3.
更新日期:1998-01-01 00:00:00
abstract::Human glioma MO54 cells were used to investigate whether radio frequency (RF) field exposure could activate stress response genes. Cells were exposed to continuous wave 1950 MHz or sham conditions for up to 2 h. Specific absorption rates (SARs) were 1, 2, and 10 W/kg. For the cell growth experiment, cell numbers were ...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20077
更新日期:2005-05-01 00:00:00
abstract::We study the effect of microwaves at 2,450 MHz on protein unfolding using surface plasmon resonance sensing. Our experimental method makes use of the fact that unfolding proteins tend to bind to chaperones on their unfolding pathway and this attachment is readily monitored by surface plasmon resonance. We use the prot...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20382
更新日期:2008-05-01 00:00:00
abstract::This study examined whether 60 Hz magnetic field (MF) exposure alters intracellular calcium levels ([Ca(2+)](i)) in isolated bovine adrenal chromaffin cells, a classic model of neural responses. [Ca(2+)](i) was monitored by fluorescence video imaging of cells loaded with the calcium indicator fluo-4 during exposures t...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.10045
更新日期:2002-12-01 00:00:00
abstract::This study reports the continuous 8-h monitoring of data on extremely low-frequency magnetic fields (ELF-MF) relating to 14 children and 35 teachers in 11 elementary schools in Northern Taiwan. It was anticipated that the subjects in two of these campuses would have elevated exposure to ELF-MF as a result of their clo...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20431
更新日期:2008-10-01 00:00:00
abstract::Introduction of genetic material into muscle tissue has been extensively researched, including isolation and in vitro expansion of primary myoblasts as a potential source of cells for skeletal and heart muscle tissue engineering applications. In this study, we optimized the electroporation protocol for introduction of...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.21936
更新日期:2015-12-01 00:00:00
abstract::The present article reviews the basic principles of a new approach to the characterization of pulmonary disease. This approach is based on the unique nuclear magnetic resonance (NMR) properties of the lung and combines experimental measurements (using specially developed NMR techniques) with theoretical simulations. T...
journal_title:Bioelectromagnetics
pub_type: 杂志文章,评审
doi:10.1002/(sici)1521-186x(1999)20:4+<110::aid-bem13>
更新日期:1999-01-01 00:00:00
abstract::Laboratory measurements of electric fields have been carried out around examples of smart meter devices used in Great Britain. The aim was to quantify exposure of people to radiofrequency signals emitted from smart meter devices operating at 2.4 GHz, and then to compare this with international (ICNIRP) health-related ...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.22044
更新日期:2017-05-01 00:00:00