ELF magnetic fields increase amino acid uptake into Vicia faba L. Roots and Alter Ion movement across the plasma membrane
ELF magnetic fields increase amino acid uptake into Vicia faba L. Roots and Alter Ion movement across the plasma membrane
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ELF 磁场增加蚕豆对氨基酸的吸收。根和改变离子跨质膜的运动
DOI：
10.1002/bem.10026
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发表时间：
2002
影响因子：
1.9
通讯作者：
J. Podd
中科院分区：
文献类型：
--
作者：
B. C. Stange;R. Rowland;B. Rapley;J. Podd
蚕豆幼苗经10µT 50 Hz方波磁场处理40min后，其完整根对氨基酸的吸收显著增加。使用100微米T 50赫兹方波时，可观察到较温和的增加。在低场强下，介质电导率从10µT 50 Hz方波场、100µT 50 Hz正弦波场和100µT 60 Hz方波场增加，表明离子在质膜上的运动发生了变化，这很可能是由于根细胞的离子净流出增加所致。同样，对于50和60赫兹的方波和正弦波，在10和100µT处观察到介质pH的显著升高，表明碱度增加。我们的数据表明，在50或60赫兹时，10和100µT的低磁场强度可以改变根尖的膜运输过程。《生物电磁学》23：347-354,2002。©2002 Wiley-Liss公司
Vicia faba seedlings, subjected to a 10 µT 50 Hz square wave magnetic field for 40 min together with a radioactive pulse, showed a marked increase in amino acid uptake into intact roots. A more modest increase was observed with a 100 µT 50 Hz square wave. An increase in media conductivity at low field intensities from 10 µT 50 Hz square wave, 100 µT 50 Hz sine wave, and 100 µT 60 Hz square wave fields, indicated an alteration in the movement of ions across the plasma membrane, most likely due to an increase in net outflow of ions from the root cells. Similarly, marked elevation in media pH, indicating increased alkalinity, was observed at 10 and 100µT for both square and sine waves at both 50 and 60 Hz. Our data would indicate that low magnetic field intensities of 10 and 100 µT at 50 or 60 Hz can alter membrane transport processes in root tips. Bioelectromagnetics 23:347–354, 2002. © 2002 Wiley‐Liss, Inc.