Silicon mitigates the Cd toxicity in maize in relation to cadmium translocation, cell distribution, antioxidant enzymes stimulation and enhanced endodermal apoplasmic barrier development

Lukačová, Zuzana; Švubová, Renáta; Kohanová, Jana; Lee, Alexander

doi:10.1007/s10725-012-9781-4

Cited by 138 publications

(52 citation statements)

References 57 publications

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“…This Si stimulation effect on antioxidants has been observed under Cd stress in maize (Lukacova et al, 2013), wheat (Hussain et al, 2015), cotton , pakchoi (Song et al, 2009), rice (Tripathi et al, 2012a(Tripathi et al, , 2012bSrivastava et al, in press) and peanut . Khodarahmi et al (2012) reported that in cucumber cultivars Si application increased CAT activity in Negin cultivar under Cd stress but did not affect in Super Dominus cultivar which showed cultivar dependent response of Si under metal stress.…”

Section: Enhancement In Antioxidant Defense Systemmentioning

confidence: 61%

“…Si enhanced the tertiary endodermal cell walls formation in comparison with Cd treatments alone which showed enhanced endodermal apoplasmic barrier development in the presence of Si in maize (Vaculik et al, 2009(Vaculik et al, , 2012Lukacova et al, 2013). Silicon prompted the development of the apoplasmic barrier in the roots of A. marina under Cd stress .…”

Section: Structural Alterations In Plantsmentioning

confidence: 91%

See 1 more Smart Citation

Mechanisms of silicon-mediated alleviation of heavy metal toxicity in plants: A review

Adrees

Ali

Rizwan

et al. 2015

Ecotoxicology and Environmental Safety

723

248

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Section: Enhancement In Antioxidant Defense Systemmentioning

confidence: 61%

Section: Structural Alterations In Plantsmentioning

confidence: 91%

Mechanisms of silicon-mediated alleviation of heavy metal toxicity in plants: A review

Adrees

Ali

Rizwan

et al. 2015

Ecotoxicology and Environmental Safety

723

248

View full text Add to dashboard Cite

“…For example, with its participation in the lignifications of cell walls, where they can provide additional protection of cells from the toxic ions and thereby contribute to an increase of metal resistance (Lukačová et al, 2013). Since at low temperature without cadmium all growth parameters changed to a lesser degree than in the presence of the metal, it can be assumed that with the combined action of low temperature and cadmium, their negative effects are summarized.…”

Section: Discussionmentioning

confidence: 99%

Cadmium treatment effects on the growth and antioxidant system in barley plants under optimal and low temperatures

Kaznina

Batova

Repkina

et al. 2018

AAS

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The cadmium effect (100 μM) on the barley (Hordeum vulgare L.) growth, the content of HvCu/ZnSOD, HvCAT2 and HvPRX07 transcripts and the antioxidant enzymes activity (SOD, CAT and PRX) in roots and leaves of seedlings under optimal (22 °C) and low (4 °C) temperatures were studied. Exposure to cadmium at 22 °C did not inhibit the plants' growth. In this case, the rate of the oxidative processes in the cells remained at the control level. This was achieved by a corresponding increase of the gene transcripts and the antioxidant enzymes activity in roots and leaves. In contrast, exposure to cadmium at 4 °C inhibited the seedlings' growth despite of the lower metal content in the plants. Moreover the rate of lipid peroxidation in the roots and leaves increased significantly. It is assumed that this effect was connected with the accumulation of excess amounts of hydrogen peroxide due to a misbalance between its generation and neutralization. This assumption is confirmed by the obtained data, according to which the level of HvCu/ZnSOD expression and the total activity of SOD increased significantly under exposure to cadmium at 4 °C, although HvCAT2 and HvPRX07 transcripts and CAT and PXR activity did not rise.

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“…Investigations have demonstrated a notable reduction in photosynthesis by Cd in different plant species (Pietrini et al 2003;Toth et al 2012;Lukacova et al 2013). However, Haag-Kerwer et al (1999) found Cd affected transpiration but not photosynthesis in Brassica juncea.…”

Section: Discussionmentioning

confidence: 99%

Differences in photosynthesis, yield and grain cadmium accumulation as affected by exogenous cadmium and glutathione in the two rice genotypes

et al. 2014

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Greenhouse pot experiments were conducted using Cd-tolerant (Bing97252) and sensitive (Xiushui63) rice genotypes to investigate genotypic differences in yield, Cd accumulation and photosynthesis at different growth stages in response to different Cd levels and as affected by glutathione (GSH). Yield of the two genotypes were impaired when soil Cd levels higher than 5 mg kg -1 (Cd2), with Xiushui63 being more affected. Application of GSH at seedling, elongation or the both stages significantly increase yield in Bing97252 and at elongation stage in Xiushui63. Cd concentration in leaves showed dose-dependent responses at seedling and elongation stages except Xiushui63 which showed a slight reduction under Cd5 (100 mg kg -1 ) treatment over Cd4 (50 mg kg -1 ). At harvest stage, leaf Cd concentration also increased with Cd levels in both genotypes. Grain Cd concentration showed dose-dependent increase in Xiushui63, but this increase was only found from control to Cd3 (10 mg kg -1 ) treatments in Bing97252. Addition of GSH markedly decreased grain Cd concentration in both genotypes. Regression equations between grain and leaf Cd concentrations at seedling/elongation stage were established, and the calculated critical levels of Cd in leaves at seedling (0.403 mg kg -1 DW) and elongation (0.299 mg kg -1 DW) stages were obtained for safe rice grain production. Net photosynthetic rate and stomatal conductance were not affected at different growth periods under different Cd levels in Bing97252, but significantly reduced at filling stage in Xiushui63 when soil Cd levels up to 50 mg kg -1 . Intercellular CO 2 concentration was significantly reduced during the whole growth period under high soil Cd level except seedling stage in Xiushui63, while the decrease was found in Bing97252 only at seedling stage. Our findings demonstrate that adoption of low Cd accumulation genotype coupled with GSH application provided a promising strategy to reduce grain Cd accumulation for safe food production, especially in slight or moderate Cd polluted soils.

show abstract

Silicon mitigates the Cd toxicity in maize in relation to cadmium translocation, cell distribution, antioxidant enzymes stimulation and enhanced endodermal apoplasmic barrier development

Cited by 138 publications

References 57 publications

Mechanisms of silicon-mediated alleviation of heavy metal toxicity in plants: A review

Mechanisms of silicon-mediated alleviation of heavy metal toxicity in plants: A review

Cadmium treatment effects on the growth and antioxidant system in barley plants under optimal and low temperatures

Differences in photosynthesis, yield and grain cadmium accumulation as affected by exogenous cadmium and glutathione in the two rice genotypes

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