The influence of a weak horizontal permanent magnetic field on the composition and content of lipids in lettuce leaves
2015
Novitskii, Yu. I. | Novitskaya, G. V. | Molokanov, D. R. | Serdyukov, Yu. A. | Yusupova, I. U.
The lipid composition and content were analyzed in lettuce Lactica sativa L. (variety Stone head) leaves grown in a weak horizontal permanent magnetic field (PMF) produced by Helmholtz coils of 400 A/m strength under controlled conditions of illumination and temperature in phytothrone. Control plants were grown under the same conditions in a geomagnetic field. PMF decreased the total lipid content by 40% due to a significant decrease in polar and neutral lipids. Among polar lipids, the fractions of glycolipids and phospholipids diminished. Among glycolipids, the content of monogalactosyldiacylglycerols was lower by 25–52%. The content of phospholipids decreased, too, namely phosphatidylglycerols were lower by 17–51%, phosphatidylcholines by 21–24%, phosphatidylethanolamines by 12–20%, and phosphatidylinositols by 12–41%. Therefore, weak PMF reduced the content of lipids in membranes, including the chloroplast, mitochondrial, and cytoplasmic membranes.
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