Impact of nano-CuO stress on rice (Oryza sativa L.) seedlings

Shaw, Arun K.; Hossain, Zahed

doi:10.1016/j.chemosphere.2013.05.044

Cited by 325 publications

(154 citation statements)

References 56 publications

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“…Regardless of the stressor, a greater change in the MDA level was found for the sensitive Raweta variety in comparison to Parabola, which confirms its sensitivity. An increase of MDA level in plant tissues under the influence of metal nanoparticles was found earlier inter alia in rice (Oryza sativa L.) (Shaw and Hossain 2013), mung bean (Vigna radiata L.) (Nair and Chung 2015) and wheat (T. aestivum L.) (Dimkpa et al 2012). The application of both studied silver forms resulted in an increase of MDA concentration in the examined wheat varieties.…”

Section: Discussionsupporting

confidence: 61%

“…The role of GSH as a protectant against ROS was confirmed here by an increase of GSH levels in callus cells of both genotypes exposed to AgNPs and AgNO 3 at all used concentrations. An increased content of reduced glutathione after treatment with metal ions (CuO) was also recorded by Shaw and Hossain (2013). Greater changes of GSH content in the tolerant variety in comparison to the sensitive one showed that this nonenzymatic compound was the main antioxidant, the synthesis of which was activated in the tolerant variety in conditions of oxidative stress induced by the presence of silver in both forms.…”

Section: Discussionmentioning

confidence: 87%

“…An increased activity of Fig. 2 Images of callus cells (Parabola and Raweta) cultured on control media (0) and supplemented with AgNPs or AgNO 3 for 24 h (40, 60 ppm); observation in white light, magnification 9200 superoxide dismutase was registered in cucumber (Cucumis sativus L.) (Kim et al 2012) and rice (O. sativa L.) (Shaw and Hossain 2013) under the influence of metal oxide nanoparicles. The results presented here showed that treatment of plant cells with both AgNPs and Ag ?…”

Section: Discussionmentioning

confidence: 99%

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Effects of exposure of callus cells of two wheat varieties to silver nanoparticles and silver salt (AgNO3)

2016

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Metal nanoparticles significantly affect the physiological properties of plants, e.g., seed germination, growth and metabolism. In the present study, the toxic effects of silver nanoparticles (AgNPs) and silver ions were studied on callus cells of two varieties of wheat (Triticum aestivum L.): stress tolerant-Parabola; stress sensitiveRaweta. Stress induced by silver particles or ions (0, 20, 40, 60 ppm) was investigated using different parameters such as morphological characteristics, lipid peroxidation and mobilization of defense system which was determined by analyzing the activity of antioxidant enzymes, glutathione (GSH) and proline contents. Microscopic observations revealed deformation of cells after treatment by sol of higher silver concentrations. An increase in malondialdehyde content in both studied varieties was observed. Tested varieties showed an increased proline content in the silver-treated cells. There was no effect of silver on the superoxide dismutases activity, while the activity of catalase was significantly decreased. The changes in the activity of peroxidases in both varieties were opposite. The highest content of intracellular GSH was noticed at a concentration of 20 ppm of both AgNPs and silver ions. The presented results demonstrate a significant similarity of the effects caused by the studied stressors: silver nanoparticles and silver ions. The results characterized the mechanism of action of nanosilver on wheat callus: morphology disorder, damage to cell membranes, severe oxidative stress and in consequence intensification of production of non-enzymatic antioxidants.

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Section: Discussionsupporting

confidence: 61%

Section: Discussionmentioning

confidence: 87%

Section: Discussionmentioning

confidence: 99%

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Effects of exposure of callus cells of two wheat varieties to silver nanoparticles and silver salt (AgNO3)

2016

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“…Lahiani et al proved that MWCNTs accelerated the germination of corn, barley, and soybean [6]. In contrast, CuO NPs decreased the germination seeds, shoot length and shoot weight of rice [7], CNTs could obviously inhibit seed gernintion of L. Sativum in sewage sludge. Ag NPs increased the germination percent of Pennisetum glaucum [8].…”

Section: Introductionmentioning

confidence: 99%

Effect of Different Nanoparticles on Seed Germination and Seedling Growth in Rice

Hao¹,

Zhang²,

Rui³

et al. 2016

Proceedings of the 2nd Annual International Conference on Advanced Material Engineering (AME 2016)

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“…Similarly, nano CuO caused significant oxidative stress with higher ROS, MDA content, but increased activities of antioxdative enzymes in rice (Da Costa & Sharma, 2016;Shaw & Hossain, 2013;Wang et al, 2015).…”

Section: Discussionmentioning

confidence: 97%

Effect of TiO2 Nanoparticles on Antioxidant Enzymes Activity and Biochemical Biomarkers in Pinto Bean (Phaseolus vulgaris L.)

Ebrahimi¹,

Galavi²,

Ramroudi³

et al. 2016

JMBR

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Tests were done on the effects of titanium dioxide spray on Pinto bean (Phaseolus vulgaris L. c.v 'c.o.s.16'). The study was conducted as a factorial experiment in a randomized complete block design with four replications for two years (2014 -2015). Treatments consisted of two factors; the first factor was stage of plant growth that spraying was applied (rapid vegetative growth, flowering and pod filling); and the second factor was that of different concentrations of titanium dioxide nanoparticles (TiO 2 ) that consisted of spray with water (control), nano titanium dioxide at concentrations of 0.01%, 0.02%, 0.03% and 0.05%. Activity of guaiacol peroxidase (GPX), activity of superoxide dismutase (SOD), activity of catalase (CAT), activity of peroxidase (POD), malonyldialdehyde (MDA) Content and 8-deoxy-2-hydroxyguanosine (8-OHDG) content were assayed. Results showed that effect of nano TiO 2 was significant on activity of superoxide dismutase (SOD), activity of catalase (CAT), activity of peroxidase (POD), malonyldialdehyde (MDA) Content and 8-deoxy-2-hydroxyguanosine (8-OHDG) content. Results of combined analysis of variance showed that the effect year significantly affected on SOD and 8-OH-2-DG (P ≤ 0.05). The effect of different amounts of titanium dioxide nanoparticles (TiO 2 ) significantly affected (P ≤ 0.05) on MDA and 8-OH-2-DG. The effects of different amounts of titanium dioxide nanoparticles and year were significant on SOD, POD, MDA and the amount of 8-deoxy-2-hydroxyguanosine in P ≤ 0.05. None of the physiological traits were affected by spraying of nano titanium dioxide. The effects of TiO 2 nanoparticles times of spraying and year were significant on SOD, CAT and 8-deoxy-2-hydroxyguanosine (P ≤ 0.05). Interaction effects of nano TiO 2 concentrations × nano TiO 2 spraying times did not have a significant impact on SOD, CAT, POD, GPX, MDA and 8-OH-2-DG. Although, all trait were affected by interaction effects of year × nano TiO 2 concentrations × nano TiO 2 spraying times with the exception of GPX (P ≤ 0.05).

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Impact of nano-CuO stress on rice (Oryza sativa L.) seedlings

Cited by 325 publications

References 56 publications

Effects of exposure of callus cells of two wheat varieties to silver nanoparticles and silver salt (AgNO3)

Effects of exposure of callus cells of two wheat varieties to silver nanoparticles and silver salt (AgNO3)

Effect of Different Nanoparticles on Seed Germination and Seedling Growth in Rice

Effect of TiO2 Nanoparticles on Antioxidant Enzymes Activity and Biochemical Biomarkers in Pinto Bean (Phaseolus vulgaris L.)

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