Electromagnetic fields (900 MHz) evoke consistent molecular responses in tomato plants

被引:54
作者
Roux, David
Vian, Alain [1 ]
Girard, Sebastien
Bonnet, Pierre
Paladian, Francoise
Davies, Eric
Ledoigt, Gerard
机构
[1] Univ Blaise Pascal, ERTAC, EA 3296, Dept Biol, F-63177 Clermont Ferrand, France
[2] Univ Blaise Pascal, Dept Phys, UMR CNRS 6602, LASMEA, F-63177 Aubiere, France
[3] N Carolina State Univ, Dept Bot, Raleigh, NC 27695 USA
关键词
D O I
10.1111/j.1399-3054.2006.00740.x
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Although the effects of high-frequency electromagnetic fields on biological systems have been studied frequently, unequivocal results have rarely been obtained, primarily because suitably controlled experiments could not be performed. In the present work, tomato plants were exposed to a homogeneous and isotropic field (900 MHz) using a mode stirred reverberation chamber, and the stress-related transcripts (calmodulin, protease inhibitor and chloroplast mRNA-binding protein) were assayed by real-time quantitative PCR. Exposure to an electromagnetic field induced a biphasic response, in which the levels of all three transcripts increased four- to six-fold 15 min after the end of electromagnetic stimulation, dropped to close to initial levels by 30 min, and then increased again at 60 min. We deliberately focused on the very early molecular responses to high-frequency electromagnetic fields in order to minimize secondary effects.
引用
收藏
页码:283 / 288
页数:6
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