Effect of cadmium on polyphenol content in young barley plants (Hordeum vulgare L.)

Dudjak, J.; Lachman, J.; Miholová, D.; Kolihová, D.; Pivec, V.

doi:10.17221/4060-pse

Cited by 28 publications

(13 citation statements)

References 10 publications

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“…Zn × S P = 0.03 total polyphenol and flavonoid contents in barley roots (Dudjak et al 2004, Lachman et al 2005). The decrease in the level of maize SOD activity resulting from treatment with S can be ascribed to the protective effects of S, which alleviated oxidative stress caused by excess Zn.…”

Section: Resultsmentioning

confidence: 99%

Oxidative stress and change in plant metabolism of maize (Zea mays L.) growing in contaminated soil with elemental sulfur and toxic effect of zinc

Cui¹,

Zhao²

2011

Plant Soil Environ.

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Responses of the chlorophyll, antioxidant enzymes and lipid peroxidation in maize growing in soil with zinc (Zn) and elemental sulfur (S) were studied. The results showed that sulfur alleviated the high toxicity of Zn and increased the concentration of chlorophyll. The activities of superoxide dismutase (SOD) and peroxidase (POD) increased significantly and catalase (CAT) activity significantly decreased in plants treated with 1000 mg/kg Zn alone. Compared with the control, SOD and POD activity increased from 62.3 to 77.3 U/mg protein and 28 to 41 nmol/min/mg protein, respectively. However, CAT activity decreased from 1.96 to 1.48 µmol H 2 O 2 /min/mg protein. The concentration of malondialdehyde (MDA) in maize leaves significantly increased as the concentration of Zn increased. Moderate concentrations of S (32 and 160 mg/kg) alleviated the increase of both SOD and POD activity and the decrease of CAT activity that were observed under conditions of Zn stress. The greatest decrease of SOD and POD activity were 17% and 21% and both were observed in the treatment of 160 mg/kg S combined with 1000 mg/kg Zn. In this treatment, the greatest increase of CAT activity (11%) was also observed. The results suggest that moderate supplementation with S may ameliorate the toxicity caused by excess Zn and plays an important role in protecting plants from oxidative stress induced by excess Zn.

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Section: Resultsmentioning

confidence: 99%

Oxidative stress and change in plant metabolism of maize (Zea mays L.) growing in contaminated soil with elemental sulfur and toxic effect of zinc

Cui¹,

Zhao²

2011

Plant Soil Environ.

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“…major leaf antioxidants, such as saponarin, lutonarin, and 2-O-glucosylvitexin), leucoanthocyanidins, catechins, and coumarins have been found in young barley extracts. The total level of polyphenolic compounds in barley grass varies from 857 -1,690 mg/kg dry mass [5] and one of them -5,7-dihydroxyflavone -tricin, has been characterized as a melanin biosynthesis inhibitor [6].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of anticancer activity of water and juice extracts of young <i>Hordeum vulgare</i> in human cancer cell lines HT-29 and A549

Czerwonka¹,

Kawka²,

Cykier³

et al. 2017

Ann Agric Environ Med.

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Introduction and objective. Barley (Hordeum vulgare L.) is known as a rich source of different bioactive compounds. At present, considerable attention of researchers is focused on young barley grass. It can be a good source of dietary minerals, vitamins, carbohydrates, amino acids, phenolic compounds and proteins. It is possible that the composition of chemical ingredients beneficial for health may induce an anticancer potential of young barley in human colon adenocarcinoma (HT-29) and human lung adenocarcinoma (A549) cell lines. Materials and method. Hordeum vulgare water extract (HWE) and Hordeum vulgare juice extract (HJE) were prepared. Cell proliferation and viability were examined with the use of MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) and NR (neutral red) methods. Induction of necrosis was assessed by propidium iodide/Hoechst staining. Progress of the cell cycle involved in cell proliferation, apoptosis, and regulation of transcription was estimated using flow cytometry analysis. Additionally, the capability of free radical scavenging was evaluated with the DPPH assay. Results. The study revealed that extracts inhibited the proliferation of cancer cells. The NR study confirmed the low cytotoxic activity of the tested extracts to normal human colon epithelial cells (CCD 841 CoTr) and human skin fibroblasts (HSF). Furthermore, a dose-dependent cytotoxicity against HT-29 cells, but not A549 cells, has been reported. The free radical scavenging activity was observed in the case of the HWE but not the HJE. Conclusions. The obtained results indicate a cancer chemopreventive potential of young barley as a safe dietary agent in colon carcinoma.

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“…Secondary metabolites such as the total phenols, saponins and iridoids were measured in the shoots of N. arvensis. Phenols as secondary metabolites of plants are known to be involved in the antioxidant activity in plants growing under heavy metal stress and are typically increased by metal stress 53 . Also, phenols are oxidized by peroxidase and play a role in scavenging H 2 O 2 molecules 54 .…”

Section: Resultsmentioning

confidence: 99%

Effects of engineered aluminum and nickel oxide nanoparticles on the growth and antioxidant defense systems of Nigella arvensis L.

Chahardoli

Karimi

Ma³

et al. 2020

Sci Rep

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The effects of different concentrations (0, 50,100, 1000 and 2500 mg/L) of engineered aluminum and nickel oxide nanoparticles (Al 2 o 3 and NiO NPs) on plant growth, oxidative stress and antioxidant activities in the hydroponically grown tissues of Nigella arvensis L. were investigated. The plant biomass was significantly increased under 50 and 100 mg/L of Al 2 o 3 NPs or 50 mg/L of NiO NPs treatment, but was significantly decreased at higher concentrations of these nanoparticles. Assays of several enzymatic antioxidants such as ascorbate peroxidase (APX), catalase (CAT), superoxide dismutase (SOD) and peroxidase (POD) in roots and shoots indicate a general increase of activities after exposure to 50-2,500 mg/L of Al 2 o 3 NPs and NiO NPs. The results are corroborated by an increased 2,2-diphenyl-1-picryl hydrazyl (DPPH) scavenging activity, total antioxidant capacity, total reducing power, total iridoids content, total saponin content, and total phenolic content in treated plants by Al 2 o 3 NPs compared to the control plants. By contrast, the antioxidant activities, formation of secondary metabolites, and other related physiological parameters such as the total antioxidant capacity, DPPH scavenging activity and total saponin content were inhibited after the concentration of NiO NPs was increased to 100 mg/L. Total phenols, saponins, iridoids and total antioxidant content and DPPH scavenging activity were increased in plants treated with 100-2,500 mg/L Al 2 o 3 NPs. Overall, these two nanoparticles displayed different effects in the shoots and roots of plants at different concentrations, which may be due to their physico-chemical properties. Rapid development of nanotechnology has greatly expanded the applications of engineered nanoparticles (ENPs) in commercial and industrial products 1. Increased application and potential accumulation of ENPs in the environment and their unknown interactions with different organisms, aggravated by some reports of greater toxicity at nanoscale than the bulk scale, caused broad concerns about the environmental health and safety of ENPs 2,3. Previous studies have demonstrated some disruptive effects of some ENPs on the natural environment including water, air, and soil quality 4. Plants are one of the most essential components of the ecosystem and interact with ENPs closely 5. These ENPs could be taken up by plants, and enter into the food chain through dietary consumption, ultimately affecting human health 6. Many previous investigations explored the potential applications of ENPs in agriculture 7-10. However, the majority of previous studies in ENPs-plant interactions focused on the potential toxicity of nanoparticles to higher plants. Both positive and negative or insignificant effects of ENPs on plants have been reported 11. In general, the phytotoxicity of ENPs is mediated through the production of reactive oxygen species (ROS) in plant cells 12. Even though ROS are normally produced within plants as a byproduct of metabolic processes in chloroplasts and other organelles 13,...

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Effect of cadmium on polyphenol content in young barley plants (Hordeum vulgare L.)

Cited by 28 publications

References 10 publications

Oxidative stress and change in plant metabolism of maize (Zea mays L.) growing in contaminated soil with elemental sulfur and toxic effect of zinc

Oxidative stress and change in plant metabolism of maize (Zea mays L.) growing in contaminated soil with elemental sulfur and toxic effect of zinc

Evaluation of anticancer activity of water and juice extracts of young <i>Hordeum vulgare</i> in human cancer cell lines HT-29 and A549

Effects of engineered aluminum and nickel oxide nanoparticles on the growth and antioxidant defense systems of Nigella arvensis L.

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