Influence of Low-Intensive He-Ne Laser Radiation on the Composition and Content of Phospholipids and Sterols in the Callus Tissues of Wheat Тriticum aestivum L.
L. V. Dudareva, E. G. Rudikovskaya, N. V. Semenova, A. V. Rudikovskii, V. N. Shmakov
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引用次数: 0
Abstract
The effect of He-Ne laser radiation on the composition and content of cell membrane components, namely phospholipids (PL) and sterols, in wheat callus tissues was studied by chromato-mass spectrometry and thin-layer chromatography. It was shown that irradiation of calluses with laser light at a dose of 3.6 J/cm2 resulted in significant changes in the content of these components. Thus, the content of phosphatidylinositol increased in irradiated callus by 8 times, phosphatidylethonolamine by 2 times, and the content of phosphatidic acid decreased by 20% of the sum of PL. For sterols it was found that irradiation caused the most significant changes in the content of β-sitosterol dominant in plants (increase from 1453 ± 170 μg/g dry weight in unirradiated control to 2001 ± 111 μg/g dry weight 1 h after exposure); due to this, the total content of sterols also increased. The analysis of the obtained results suggests that PLs and sterols, primarily those for which regulatory and signaling functions are known, participate in the reaction of plant tissue to exposure to low-intensity He-Ne laser irradiation. This participation is realized as a stress (nonspecific) response to intense radiation.
期刊介绍：
Biochemistry (Moscow), Supplement Series A: Membrane and Cell Biology is an international peer reviewed journal that publishes original articles on physical, chemical, and molecular mechanisms that underlie basic properties of biological membranes and mediate membrane-related cellular functions. The primary topics of the journal are membrane structure, mechanisms of membrane transport, bioenergetics and photobiology, intracellular signaling as well as membrane aspects of cell biology, immunology, and medicine. The journal is multidisciplinary and gives preference to those articles that employ a variety of experimental approaches, basically in biophysics but also in biochemistry, cytology, and molecular biology. The journal publishes articles that strive for unveiling membrane and cellular functions through innovative theoretical models and computer simulations.
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