Exogenous nitric oxide (as sodium nitroprusside) ameliorates arsenic-induced oxidative stress in watercress (Nasturtium officinale R. Br.) plants

Namdjoyan, Shahram; Kermanian, Hossein

doi:10.1016/j.scienta.2013.07.035

Cited by 42 publications

(19 citation statements)

References 36 publications

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“…The activity of CAT, one of the efficient H 2 O 2 scavenging enzymes, changes in response to various abiotic stresses [ 62 ]. In the present study, in response to As stress, CAT activity increased with increasing As supply in the growth medium ( Figure 3(d) ), which is consistent with previous studies [ 55 , 63 ]. Supplementation with Ca also increased CAT activity in the As-treated seedlings ( Figure 3(d) ), which might play a role in reducing H 2 O 2 .…”

Section: Discussionsupporting

confidence: 93%

Calcium Mitigates Arsenic Toxicity in Rice Seedlings by Reducing Arsenic Uptake and Modulating the Antioxidant Defense and Glyoxalase Systems and Stress Markers

Rahman

Mostofa

Alam

et al. 2015

BioMed Research International

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The effect of exogenous calcium (Ca) on hydroponically grown rice seedlings was studied under arsenic (As) stress by investigating the antioxidant and glyoxalase systems. Fourteen-day-old rice (Oryza sativa L. cv. BRRI dhan29) seedlings were exposed to 0.5 and 1 mM Na2HAsO4 alone and in combination with 10 mM CaCl2 (Ca) for 5 days. Both levels of As caused growth inhibition, chlorosis, reduced leaf RWC, and increased As accumulation in the rice seedlings. Both doses of As in growth medium induced oxidative stress through overproduction of reactive oxygen species (ROS) by disrupting the antioxidant defense and glyoxalase systems. Exogenous application of Ca along with both levels of As significantly decreased As accumulation and restored plant growth and water loss. Calcium supplementation in the As-exposed rice seedlings reduced ROS production, increased ascorbate (AsA) content, and increased the activities of monodehydroascorbate reductase (MDHAR), dehydroascorbate reductase (DHAR), catalase (CAT), glutathione peroxidase (GPX), superoxide dismutase (SOD), and the glyoxalase I (Gly I) and glyoxalase II (Gly II) enzymes compared with seedlings exposed to As only. These results suggest that Ca supplementation improves rice seedlings tolerance to As-induced oxidative stress by reducing As uptake, enhancing their antioxidant defense and glyoxalase systems, and also improving growth and physiological condition.

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Section: Discussionsupporting

confidence: 93%

Calcium Mitigates Arsenic Toxicity in Rice Seedlings by Reducing Arsenic Uptake and Modulating the Antioxidant Defense and Glyoxalase Systems and Stress Markers

Rahman

Mostofa

Alam

et al. 2015

BioMed Research International

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“…In the presesnt study, despite a variable mechanism of damage of B toxicity and deficiency, NO improved the growth of watermelon seedlings under all treatment conditions. Earlier studies indicated the ability of SNP to protect plants from elemental toxicity (As and Cu) by blocking their translocations towards shoot (Namdjoyan and Kermanian, 2013;Mostofa et al, 2014). However, protection from B-toxicity induced injury in this study seems to be associated with an improved B distribution rather than reduced B translocation to shoots.…”

Section: Discussioncontrasting

confidence: 68%

Nitric oxide protects carbon assimilation process of watermelon from boron-induced oxidative injury

Moustafa-Farag

Ullah

Yang

et al. 2017

Plant Physiology and Biochemistry

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“…Exogenous NO application increased Cd accumulation in the root and decreased its content in the leaf and sheath (Table 1). Namdjoyan and Kermanian (2013) found that treatment with 100 lM SNP considerably reduced root-to-shoot translocation of arsenic in watercress plants. Cd ?…”

Section: Discussionmentioning

confidence: 93%

Effects of nitric oxide on alleviating cadmium stress in Typha angustifolia

et al. 2015

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Nitric oxide (NO) is a key signal molecule that is involved in plant response to various abiotic stresses. The present study was conducted to investigate the effects of NO on Typha angustifolia which has been subjected to cadmium stress. Our results showed that sodium nitroprusside (SNP, a NO donor) treatment could significantly mitigate both the Cd (CdCl 2 Á2.5H 2 O)-induced increase of malondialdehyde content in the root and relative electrolyte leakage in the root and leaf. NO demonstrated a reduced or counteractive effect on the Cd-induced increase in the activities of some typical antioxidant enzymes. The Cdinduced changes on the contents of non-protein thiol and phytochelatins in the root could also be reversed by NO. The protected effect of NO is likely achieved through trapping Cd in the root and decreasing Cd accumulation in the leaf and sheath. Furthermore, NO enhanced the allocation of Cd in the cell wall and reduced the distribution of Cd in the soluble fraction of the root and leaf. Differential biosynthesis of ascorbic acid content in some tissues might also be responsible for the protected effect of NO. This study concludes that NO counteracts Cd toxicity strongly in T. angustifolia via regulating antioxidant metabolism and enhancing Cd accumulation in the cell wall of the root.

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Exogenous nitric oxide (as sodium nitroprusside) ameliorates arsenic-induced oxidative stress in watercress (Nasturtium officinale R. Br.) plants

Cited by 42 publications

References 36 publications

Calcium Mitigates Arsenic Toxicity in Rice Seedlings by Reducing Arsenic Uptake and Modulating the Antioxidant Defense and Glyoxalase Systems and Stress Markers

Calcium Mitigates Arsenic Toxicity in Rice Seedlings by Reducing Arsenic Uptake and Modulating the Antioxidant Defense and Glyoxalase Systems and Stress Markers

Nitric oxide protects carbon assimilation process of watermelon from boron-induced oxidative injury

Effects of nitric oxide on alleviating cadmium stress in Typha angustifolia

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