Toxicity comparison of some possible toxic metals (Cd, Cu, Pb, Se, Zn) on young seedlingsof Sinapis alba L.

Fargašová, A.

doi:10.17221/3639-pse

Cited by 72 publications

(49 citation statements)

References 22 publications

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“…However, further increase in Se concentrations reduced shoot biomass production. Our results are in agreement with Fargašová (2003) who observed an inhibitory effect of Se on the mustard growth. In general, the biomass production was higher when selenate was supplied to the nutrient solution than selenite ( Figure 1A).…”

Section: Plant Materials and Experimental Designsupporting

confidence: 94%

Selenium biofortification and antioxidant activity in lettuce plants fed with selenate and selenite

Ramos¹,

Faquin²,

Guilherme³

et al. 2010

Plant Soil Environ.

149

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Selenium is an important element associated with enhancement of antioxidant activity in plants, microorganisms, animals, and humans. In Brazil, the information on Se in agricultural crops is lacking, though there are indications that low levels of Se are consumed by the population. The experiment was conducted under greenhouse conditions with pots containing 3 l of nutritive solution in a completely randomized factorial design, with seven Se concentrations (0, 2, 4, 8, 16, 32, and 64 µmol/l) and two forms of Se (sodium selenate -Na 2 SeO 4 and sodium selenite -Na 2 SeO 3 ), with six replicates. The application of Se as selenate at low concentrations is more appropriate for lettuce biofortification because it favors shoot biomass growth and Se levels in the shoot biomass. Selenium in both forms had two effects on lettuce plant metabolism: at low doses it acted as an antioxidant and enhanced plant growth, whereas at higher levels it reduced yield.

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Section: Plant Materials and Experimental Designsupporting

confidence: 94%

Selenium biofortification and antioxidant activity in lettuce plants fed with selenate and selenite

Ramos¹,

Faquin²,

Guilherme³

et al. 2010

Plant Soil Environ.

149

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“…Growth inhibition by the heavy metals (1mM concentration) was in the order: Cu > Cd > Zn > Pb (Table 1). These results were in agreement with those of Fargašová [3], who reported that trace elements had toxic inhibitory effects of on the mustard seedling in a descending order of Cu > Se > Cd > Zn > Pb. Unlike our experiment the later authors, included Se in their study.…”

Section: Characterization Of Nano-fe3o4supporting

confidence: 93%

Magnetite (Fe₃O₄) Nanoparticles Alleviate Growth Inhibition and Oxidative Stress Caused by Heavy Metals in Young Seedlings of Cucumber (Cucumis Sativus L)

Konaté

Rui

et al. 2017

ITM Web Conf.

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Accumulation of heavy metals in the ecosystem and their toxic effects through food chain can cause serious ecological and health problems. In the present study, experiments were performed to understand how the addition of magnetite (Fe 3 O 4 ) nanoparticles reduces the toxicity caused by Cd, Pb, Cu, and Zn in cucumber plants. Plant growth parameters, lipid peroxidation, and antioxidant enzymes were measured in seedling samples treated with either metals or metals supplemented with Fe 3 O 4 to demonstrate the reduction in metal-induced oxidative stress conferred by Fe 3 O 4 . Results showed that the toxic effect of metals on seedling growth parameters can be arranged in the rank order of inhibition as follows: Cu > Cd > Zn > Pb. Exposure to metals significantly decreased the seedlings growth, the activities of superoxide dismutase (SOD) and peroxidases (POD), while the malondialdehyde (MDA) content significantly increased in cucumber seedlings. The reducing activity of nano-Fe 3 O 4 against heavy metals stresses was confirmed in this study by the decrease in MDA content. The correlation between the decrease of MDA concentration and the increase in SOD and POD activities in the presence of nano-Fe 3 O 4 suggest that the MDA reduction in the tested seedlings can result from the increased enzyme activity.

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“…At the highest Se level supplied (6 mg/kg) there was observed a reduction in shoot yield of 9 and 15%, when Se was supplied as selenite and selenate, respectively (7 and 14% for root yield). Our results are in agreement with Fargašová (2003) who observed an inhibitory effect of Se on the mustard growth. The diverse effect of selenate and selenite on the growth of brachiaria plants could be caused by distinct mechanisms of metabolism of different Se forms (Sors et al 2005).…”

Section: Resultssupporting

confidence: 94%

Response of brachiaria grass to selenium forms applied in a tropical soil

Ramos¹,

Ávila²,

Boldrin³

et al. 2012

PLANT SOIL ENVIRON

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In Brazil the total area of native and cultivated pasture used for livestock is around 180 million hectares, and selenium (Se) is absent from mineral fertilizer formulas. Nutritional supplementation of this element takes place along with provision of mineral salts in the form of sodium selenite. In the present work, the effects of adding selenate and selenite on Se biofortification, antioxidant activity and anatomy alterations in Brachiaria brizantha were evaluated. The experiments were disposed in a completely randomized design in a 6 × 2 factorial scheme, by means of five levels of Se (0; 0.5; 1.0; 3.0 and 6.0 mg/kg) applied along with grass plant fertilizer, and two Se forms (sodium selenate and sodium selenite), with six replications. The results of the present study suggest that, in tropical soil conditions, the application of Se as selenate at low doses is more appropriate for B. brizantha biofortification than Se as selenite, because it favors a greater shoot Se levels, better activation of the antioxidant system and reduces on lipid peroxidation. Finally, with an increase of Se rates, cellular modifications were observed in internal structures of roots in B. brizantha, with aerenchyma appearing.

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Toxicity comparison of some possible toxic metals (Cd, Cu, Pb, Se, Zn) on young seedlingsof Sinapis alba L.

Cited by 72 publications

References 22 publications

Selenium biofortification and antioxidant activity in lettuce plants fed with selenate and selenite

Selenium biofortification and antioxidant activity in lettuce plants fed with selenate and selenite

Magnetite (Fe₃O₄) Nanoparticles Alleviate Growth Inhibition and Oxidative Stress Caused by Heavy Metals in Young Seedlings of Cucumber (Cucumis Sativus L)

Response of brachiaria grass to selenium forms applied in a tropical soil

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Toxicity comparison of some possible toxic metals (Cd, Cu, Pb, Se, Zn) on young seedlingsof Sinapis alba L.

Cited by 72 publications

References 22 publications

Selenium biofortification and antioxidant activity in lettuce plants fed with selenate and selenite

Selenium biofortification and antioxidant activity in lettuce plants fed with selenate and selenite

Magnetite (Fe3O4) Nanoparticles Alleviate Growth Inhibition and Oxidative Stress Caused by Heavy Metals in Young Seedlings of Cucumber (Cucumis Sativus L)

Response of brachiaria grass to selenium forms applied in a tropical soil

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Magnetite (Fe₃O₄) Nanoparticles Alleviate Growth Inhibition and Oxidative Stress Caused by Heavy Metals in Young Seedlings of Cucumber (Cucumis Sativus L)