Effect of weak pulse magnetic fields on lipid peroxidation and activities of antioxidant complex components in pea chloroplasts.

摘要

The effects of magnetic fields (MF) with different intensity, which are applied in magnetotherapy, on the redox homeostasis in chloroplasts of two-week-old pea (Pisum sativum L.) cvs. Albumen and Shustrik were studied. The seedlings were treated with weak MF produced by the generators UMTI-ZF or that from Electro-Biology firm for 15, 30, 60, and 120 min. Production of early and final products of lipid peroxidation (POL) (dienoic conjugates, MDA, and Schiff bases) and also activity of superoxide dismutase (SOD) and the content of ascorbic acid (Asc) in chloroplasts were assessed. The stronger pulse MF (PMF-1) induced a stable decrease of POL products, whereas the weaker PMF-2 induced reversible accumulation of dienoic conjugates and Schiff bases. PMF-1 successively activated SOD, inhibited it, and finally stabilized its activity at the control level. Similar treatment with PMF-2 induced similar SOD activity changes but did not inhibit SOD. The faster response of Asc to PMF-1 was noted.Notes Translated from Fiziologiya Rastenii (2011) 58 (6), 930-934 (Ru).