Influence of weak permanent magnetic field on lipid peroxidation in radish seedlings
Influence of weak permanent magnetic field on lipid peroxidation in radish seedlings
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弱永磁场对萝卜幼苗脂质过氧化的影响
DOI：
10.1134/s1021443715030140
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发表时间：
2015
影响因子：
1.4
通讯作者：
M. V. Dobrovolskii
中科院分区：
文献类型：
--
作者：
Yu. I. Novitskii;G. Novitskaya;Yu. A. Serdyukov;T. K. Kocheshkova;D. Molokanov;M. V. Dobrovolskii
以5日龄萝卜为试材，研究了弱恒水平磁场（PMF，场强为<$400 A/m）对萝卜膜脂过氧化的影响。变种radicula D.C.）幼苗在人工气候室中18-20℃、光照度1-6 klx、黑暗条件下生长。在地磁场（GMF）下培育的幼苗用作参考（对照）样品。在2-3 klx光照下，幼苗在PMF的作用下，MDA含量最高，这是一种脂质过氧化终末产物。在幼苗生长过程中，MDA积累对光强没有明显的依赖性。PMF的作用改变了脂质过氧化反应的光与暗之间的比例;脂质过氧化在磁场中降低。在PMF的作用下，种子萌发过程中MDA含量降低，以5日龄幼苗在1 klx光照下降低幅度最大。永磁磁场通过影响MDA含量而起到校正作用。
The influence of weak permanent horizontal magnetic field (PMF, field strength ∼400 A/m) on lipid peroxidation was studied with 5-day-old radish (Raphanus sativus L. var. radicula D.C.) seedlings grown in a phytotron at 18–20℃ under illuminance of 1–6 klx and in darkness. Seedlings raised at geomagnetic field (GMF) were used as the reference (control) sample. Under the action of PMF, the largest content of a terminal lipid peroxidation product, MDA was observed in seedlings grown at illuminance of 2–3 klx. No clear dependence of MDA accumulation on light intensity during seedling growth was observed. The action of PMF altered the proportion between light and dark reactions of lipid peroxidation; lipid peroxidation decreased in the magnetic field. During seed germination under the action of PMF, the content of MDA was found to decrease: the largest decrease was observed in 5-day-old seedlings at illuminance of 1 klx. The permanent magnetic field acted as a correcting factor by affecting the MDA content.