Oxidative stress and some antioxidant systems in acid rain-treated bean plants

Velikova, Violeta; Yordanov, Ivan; Edreva, A.

doi:10.1016/s0168-9452(99)00197-1

Cited by 4,039 publications

(1,753 citation statements)

References 32 publications

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“…In this study also, putrescine at 0.5 mM concentration was effective in bringing down the MDA levels and electrolyte leakage to control values. Polyamine's general nature to reduce membrane leakage and lipid peroxidation has been reported earlier also (Tiburcio et al, 1994, Borell et al, 1997, Velikova et al, 2000, Verma and Mishra, 2005.…”

Section: Discussionmentioning

confidence: 76%

“…Increasing the concentration of free radical scavengers by exogenous application could help in the detoxification of stress-induced free radical production (Velikova et al, 2000;Shalata and Neuman, 2001;Verma and Mishra, 2005;Wang et al, 2004a;Wang and Yang, 2005;Zhang et al, 2006). In this study, we have tested two antioxidant compounds, putrescine and nitric oxide donor sodium nitroprusside.…”

mentioning

confidence: 98%

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Effect of nitric oxide and putrescine on antioxidative responses under NaCl stress in chickpea plants

Sheokand

Kumari

Sawhney

2008

Physiol Mol Biol Plants

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Chickpea plants were subjected to salt stress for 48 h with 100 mM NaCl, after 50 days of growth. Other batches of plants were simultaneously treated with 0.2 mM sodium nitroprusside (NO donor) or 0.5 mM putrescine (polyamine) to examine their antioxidant effects. Sodium chloride stress adversely affected the relative water content (RWC), electrolyte leakage and lipid peroxidation in leaves. Sodium nitroprusside and putrescine could completely ameliorate the toxic effects of salt stress on electrolyte leakage and lipid peroxidation and partially on RWC. No significant decline in chlorophyll content under salt stress as well as with other treatments was observed. Sodium chloride stress activated the antioxidant defense system by increasing the activities of peroxidase (POX), catalase (CAT) superoxide dismutase (SOD) and ascorbate peroxidase (APX). However no significant effect was observed on glutathione reductase (GR) and dehydro ascorbate reductase (DHAR) activities. Both putrescine and NO had a positive effect on antioxidant enzymes under salt stress. Putrescine was more effective in scavenging superoxide radical as it increased the SOD activity under salt stress whereas nitric oxide was effective in hydrolyzing H 2 O 2 by increasing the activities of CAT, POX and APX under salt stress.

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Section: Discussionmentioning

confidence: 76%

mentioning

confidence: 98%

Effect of nitric oxide and putrescine on antioxidative responses under NaCl stress in chickpea plants

Sheokand

Kumari

Sawhney

2008

Physiol Mol Biol Plants

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“…For measurement of LOX activity 50 µl of enzyme extraction was added absorbance was recorded at 234 nm and the activity was expressed as unit per mg protein in the leaves (extinction coefficient of 25000M -1 cm -1 ). (EC 1.11.1.6) The CAT activity was assayed by measuring the initial rate of H 2 O 2 disappearance at 240 nm using the extinction coefficient of 40 mM -1 cm -1 for H 2 O 2 (Velikova et al, 2000) 2.8. Guaiacol peroxidase (EC1.11.1.7)…”

Section: Lipoxygenase Activitymentioning

confidence: 99%

Effect of arginine pre-treatment on nickel accumulation and alleviation of the oxidative stress in Hyoscyamus niger

Nasibi

Heidari

Asrar

et al. 2013

J. Soil Sci. Plant Nutr.

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Nickel is essential for many plant species to complete their life cycle but higher concentrations of this metal are toxic and may severely interfere with many physiological and biochemical processes of plants. In recent researches, either sodium nitroprusside (as nitric oxide donor) or exogenous polyamines were used to counteract the effect of heavy metal stress. In this research hyoscyamus plants were pre-treated with 10 and 20 µM Arg (as a precursor of NO or polyamines) and then plants were treated with 50 and 100 µM Ni. Elevated hydrogen peroxide content and lipoxygenase (LOX) activity showed that Ni induced oxidative damages. Antioxidant enzyme activity also increased in those plants which were under Ni stress. In plants, which were pretreated with Arg, the concentration of Ni increased in shoot, while the H 2 O 2 content and the activity of LOX, catalase (CAT), guiacol peroxidase (GPX) and ascorbate peroxidase (APX) enzymes decreased. It is shown for the first time that pre-treatment of hyoscyamus plant with Arg increased plant capability to accumulate Ni in its aboveground organs by 1.5-2 times and reduced its toxic effects indicated by measurement of oxidative parameters. It might be true because Arginine induced alleviation of Ni toxicity and accelerated transport by chelating of Ni in plants directly or through production of polyamines.

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“…The homogenate was centrifuged at 2,500 × g for 10 min, and the supernatant was assayed for MDA concentration using an extinction coefficient of 155 mM −1 cm −1 and expressed as micromole per gram fresh weight, following the method of Heath and Packer (1968). H 2 O 2 levels were determined by reading the absorbance at 390 nm according to Velikova et al (2000).…”

Section: Concentration Of Malondialdehyde and H 2 O 2 In A Macrocephmentioning

confidence: 99%

Effect of exogenous abscisic acid on the level of antioxidants in Atractylodes macrocephala Koidz under lead stress

Wang

Chen

Pan

2012

Environ Sci Pollut Res

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This study hypothesized that the positive or negative effects of exogenous abscisic acid (ABA) on oxidative stress caused by lead were dose dependent. The effects of different levels of ABA (2.5, 5, and 10 mg L −1 ) on lead toxicity in the leaves of Atractylodes macrocephala were studied by investigating plant growth, soluble sugars, proteins, lipid peroxidation, and antioxidative enzymes. Excess Pb inhibited root dry weight, root length, and the number of lateral roots, but increased shoot growth. In addition, lead stress significantly decreased the levels of chlorophyll pigments, protein, and activities of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), and peroxidase (POD). Different levels of ABA significantly increased SOD, CAT, POD, and APX activities, but decreased the level of hydrogen peroxide and malondialdehyde in nonstressed plants. Exogenous application of 2.5 mg L −1 ABA detoxified the stress-generated damages caused by Pb and also enhanced plant growth, soluble sugars, proteins, and all four antioxidant enzyme activities but reduced Pb uptake of lead-stressed plant compared to lead treatment alone. However, the toxic effects of Pb were further increased by the applications of 5 and 10 mg L −1 ABA. The levels of antioxidants caused by a low concentration of exogenous ABA might be responsible for minimizing the Pb-induced toxicity in A. macrocephala.

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Oxidative stress and some antioxidant systems in acid rain-treated bean plants

Cited by 4,039 publications

References 32 publications

Effect of nitric oxide and putrescine on antioxidative responses under NaCl stress in chickpea plants

Effect of nitric oxide and putrescine on antioxidative responses under NaCl stress in chickpea plants

Effect of arginine pre-treatment on nickel accumulation and alleviation of the oxidative stress in Hyoscyamus niger

Effect of exogenous abscisic acid on the level of antioxidants in Atractylodes macrocephala Koidz under lead stress

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