نتایج جستجو برای: ascorbate glutathione cycle
تعداد نتایج: 318631 فیلتر نتایج به سال:
The specific role of endogenous glutathione in response to neuronal degeneration induced by trimethyltin (TMT) in the hippocampus was examined in rats. A single injection of TMT (8 mg/kg, i.p.) produced a rapid increase in the formation of hydroxyl radical and in the levels of malondialdehyde (MDA) and protein carbonyl. TMT-induced seizure activity significantly increased after this initial oxi...
When an antioxidant scavenges a reactive species, i.e., when it exerts its antioxidant activity, the antioxidant is converted into potentially harmful oxidation products. In this way, the antioxidant quercetin might yield an ortho-quinone, denoted as QQ, which has four tautomeric forms, i.e., the ortho-quinone and three quinonmethides. We evaluated the interaction of QQ with ascorbate or glutat...
We investigated the protective role of exogenous nitric oxide (NO) in alleviating high temperature induced damages of wheat (Triticum aestivum L. cv. Pradip) seedlings. Heat treatment (38 °C) alone or in combination with 0.5 mM SNP (a NO donor) was applied with nutrient solution on 8-d-old hydroponically grown seedlings for a period of 24 h and 48 h. Heat stress significantly decreased the Chl ...
The L-galactose (Smirnoff-Wheeler) pathway represents the major route to L-ascorbic acid (vitamin C) biosynthesis in higher plants. Arabidopsis thaliana VTC2 and its paralogue VTC5 function as GDP-L-galactose phosphorylases converting GDP-L-galactose to L-galactose-1-P, thus catalyzing the first committed step in the biosynthesis of L-ascorbate. Here we report that the L-galactose pathway of as...
Given the increasing importance of boron (B) toxicity, present study investigates roles glutathione (20 mM, GSH) and proline mM) in improvement wheat (Triticum aestivum cv. Altındane) resistance to B toxicity (10 mM B). The plants were raised hydroponic culture with control, B+glutathione, B+proline, proline. B+glutathione B+proline resisted detrimental influences on root shoot lengths, total c...
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