Nano-CuO stress induced modulation of antioxidative defense and photosynthetic performance of Syrian barley (Hordeum vulgare L.)

Shaw, Arun K.; Ghosh, Supriya; Kalaji, Hazem M.; Bosa, Karolina; Brestič, Marián; Živčák, Marek; Hossain, Zahed

doi:10.1016/j.envexpbot.2014.02.016

Cited by 214 publications

(90 citation statements)

References 42 publications

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“…The delay probably caused the increasing trend in grain yield that despite the low number of spike in nCeO 2 -M, a numerically higher grain yield than the control was obtained. Short exposure studies revealed that nCuO and nTiO 2 interfered with the physiology and growth of barley (Mandeh et al 2012;Shaw et al 2014); unfortunately, long-term studies are lacking to make meaningful analysis of the current results.…”

Section: Changes In Plant Development and Productivitymentioning

confidence: 70%

“…Unfortunately, very limited number of studies on the effects of ENMs on barley at short exposure scenarios (Mandeh et al 2012;Shaw et al 2014), and none in long-term studies, have been reported. Therefore, examining the ENMs-barley interactions could provide a broader appreciation on the influence of nCeO 2 on growth and reproduction of agricultural crops.…”

Section: Introductionmentioning

confidence: 97%

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Physiological and biochemical response of soil-grown barley (Hordeum vulgare L.) to cerium oxide nanoparticles

Rico

Barrios

Tan

et al. 2015

Environ Sci Pollut Res

158

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A soil microcosm study was performed to examine the impacts of cerium oxide nanoparticles (nCeO2) on the physiology, productivity, and macromolecular composition of barley (Hordeum vulgare L.). The plants were cultivated in soil treated with nCeO2 at 0, 125, 250, and 500 mg kg(-1) (control, nCeO2-L, nCeO2-M, and nCeO2-H, respectively). Accumulation of Ce in leaves/grains and its effects on plant stress and nutrient loading were analyzed. The data revealed that nCeO2-H promoted plant development resulting in 331 % increase in shoot biomass compared with the control. nCeO2 treatment modified the stress levels in leaves without apparent signs of toxicity. However, plants exposed to nCeO2-H treatment did not form grains. Compared with control, nCeO2-M enhanced grain Ce accumulation by as much as 294 % which was accompanied by remarkable increases in P, K, Ca, Mg, S, Fe, Zn, Cu, and Al. Likewise, nCeO2-M enhanced the methionine, aspartic acid, threonine, tyrosine, arginine, and linolenic acid contents in the grains by up to 617, 31, 58, 141, 378, and 2.47 % respectively, compared with the rest of the treatments. The findings illustrate the beneficial and harmful effects of nanoceria in barley.

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Section: Changes In Plant Development and Productivitymentioning

confidence: 70%

Section: Introductionmentioning

confidence: 97%

Physiological and biochemical response of soil-grown barley (Hordeum vulgare L.) to cerium oxide nanoparticles

Rico

Barrios

Tan

et al. 2015

Environ Sci Pollut Res

158

View full text Add to dashboard Cite

show abstract

“…Since lignification of root cells has been reported upon exposure to excess Cu (Lequeux et al 2010), the effect of CuONPs exposure on root lignification was studied using phloroglucinol-HCl staining. Moreover, since oxidative stress has been reported as one of the main toxic mechanism of MONPs in plants (Poborilova et al 2013;Shaw and Hossain 2013;Shaw et al 2014), the transcriptional modulation of genes involved oxidative stress responses viz. CuZn superoxide dismutase (CuZn-SOD), catalase (CAT) and ascorbate peroxidase (APX) were studied at the molecular level using real-time polymerase chain reaction (qRT-PCR) technique.…”

Section: Introductionmentioning

confidence: 99%

Copper oxide nanoparticle toxicity in mung bean (Vigna radiata L.) seedlings: physiological and molecular level responses of in vitro grown plants

2014

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“…In contrast with aquatic organisms, nCuO resulted in more negative effects than nCu or the two nCu(OH) 2 nanopesticides at comparable Cu concentrations. Similarly, seedling studies found inhibited growth resulting from exposure to nCuO, such as Syrian barley at 0.5 mM nCuO (Shaw et al, 2014), soybeans and chickpeas at 500 ppm Cu (Adhikari et al, 2012), mung beans and wheat at 335 and 570 mg nCu L − 1 respectively (Lee et al, 2008), radish seedlings at 10 mg/L (Atha et al, 2012), and lettuce seedlings EC 50 at 0.1 mg/L .…”

Section: Terrestrial Toxicity Studiesmentioning

confidence: 99%

Comparative environmental fate and toxicity of copper nanomaterials

et al. 2017

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A B S T R A C TGiven increasing use of copper-based nanomaterials, particularly in applications with direct release, it is imperative to understand their human and ecological risks. A comprehensive and systematic approach was used to determine toxicity and fate of several Cu nanoparticles (Cu NPs). When used as pesticides in agriculture, Cu NPs effectively control pests. However, even at low (5-20 mg Cu/plant) doses, there are metabolic effects due to the accumulation of Cu and generation of reactive oxygen species (ROS). Embedded in antifouling paints, Cu NPs are released as dissolved Cu + 2 and in nano-and micron-scale particles. Once released, Cu NPs can rapidly (hours to weeks) oxidize, dissolve, and form CuS and other insoluble Cu compounds, depending on water chemistry (e.g. salinity, alkalinity, organic matter content, presence of sulfide and other complexing ions). More than 95% of Cu released into the environment will enter soil and aquatic sediments, where it may accumulate to potentially toxic levels (> 50-500 μg/L). Toxicity of Cu compounds was generally ranked by high throughput assays as: Cu + 2 > nano Cu(0) > nano Cu(OH) 2 > nano CuO > micron-scale Cu compounds. In addition to ROS generation, Cu NPs can damage DNA plasmids and affect embryo hatching enzymes. Toxic effects are observed at much lower concentrations for aquatic organisms, particularly freshwater daphnids and marine amphipods, than for terrestrial organisms. This knowledge will serve to predict environmental risks, assess impacts, and develop approaches to mitigate harm while promoting beneficial uses of Cu NPs.

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Nano-CuO stress induced modulation of antioxidative defense and photosynthetic performance of Syrian barley (Hordeum vulgare L.)

Cited by 214 publications

References 42 publications

Physiological and biochemical response of soil-grown barley (Hordeum vulgare L.) to cerium oxide nanoparticles

Physiological and biochemical response of soil-grown barley (Hordeum vulgare L.) to cerium oxide nanoparticles

Copper oxide nanoparticle toxicity in mung bean (Vigna radiata L.) seedlings: physiological and molecular level responses of in vitro grown plants

Comparative environmental fate and toxicity of copper nanomaterials

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