Screening stably low cadmium and moderately high micronutrients wheat cultivars under three different agricultural environments of China

Liu, Na; Huang, Xianmin; Sun, Lijuan; Li, Shuangshuang; Chen, Yihui; Cao, Xueying; Wang, Wenxing; Dai, Jing; Rinnan, Riikka

doi:10.1016/j.chemosphere.2019.125065

Cited by 56 publications

(15 citation statements)

References 48 publications

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“…Cd can readily cause damage to the internal organs and systems of the human body, and is the most toxic transition metal element that poses global human health risks [3]. In 2014, the fraction of points that exceeded the standard quantity of Cd in cultivated land in China was 7% [4], and the area of farmland polluted by Cd reached 20 million hectares, which was mainly caused by irrigation due to industrial wastewater [5]. With the improvement in food safety standards and environmental awareness of the public, the prevention of Cd contamination of the food chain has become a common concern [6].…”

Section: Introductionmentioning

confidence: 99%

Removal of Aquatic Cadmium Ions Using Thiourea Modified Poplar Biochar

Zhu

Liang

et al. 2020

Water

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Removal of aquatic cadmium ions using biochar is a low-cost method, but the results are usually not satisfactory. Modified biochar, which can be a low-cost and efficient material, is urgently required for Cd-polluted water and soil remediation. Herein, poplar bark (SB) and poplar sawdust (MB) were used as raw materials to prepare modified biochar, which is rich in N- and S- containing groups, i.e., TSBC-600 and TMBC-600, using a co-pyrolysis method with thiourea. The adsorption characteristics of Cd2+ in simulated wastewater were explored. The results indicated that the modification optimized the surface structure of biochar, Cd2+ adsorption process by both TSBC-600 and TMBC-600 was mainly influenced by the initial pH, biochar dosage, and contact time, sthe TSBC-600 showed a higher adsorption capacity compared to TMBC-600 under different conditions. The Langmuir adsorption isotherm model and pseudo-second-order kinetic model were more consistent with the adsorption behavior of TSBC-600 and TMBC-600 to Cd2+, the maximum adsorption capacity of TSBC-600 and TMBC-600 calculated by the Langmuir adsorption isotherm model was 19.998 mg/g and 9.631 mg/g, respectively. The modification method for introducing N and S into biochar by the co-pyrolysis of biomass and thiourea enhanced the removal rate of aquatic cadmium ions by biochar.

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Section: Introductionmentioning

confidence: 99%

Removal of Aquatic Cadmium Ions Using Thiourea Modified Poplar Biochar

Zhu

Liang

et al. 2020

Water

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“…Figure 5 shows a non-linear increase in the concentration of DON in the grains with an increase in the fungal biomass (FB) that can be significantly fitted using the Michaelis−Menten (MM) formalism 4) were in line with or slightly higher than those commonly reported for wheat grains. 30,31 The concentrations of Cu, Mn, Ni, Ca, and K decreased (p < 0.05) with increased soil Cd content, on average by respectively, 35, 54, 44, 13, and 18%, between Cd0.1 and Cd10, whereas the concentrations of Fe and Zn were not affected (p > 0.05) by the Cd treatment. As observed for Cd (see above), the concentrations of Mn, Zn, and Ca in the grains in the base zone were higher (p < 0.05) in Fusariuminfected than in mock-inoculated plants, by an average of 56% for Mn, 51% for Zn, and 13% for Ca, while the concentrations of the four other elements were not affected (p > 0.05) by Fusarium infection.…”

Section: ■ Resultsmentioning

confidence: 95%

Interaction between the Accumulation of Cadmium and Deoxynivalenol Mycotoxin Produced by Fusarium graminearum in Durum Wheat Grains

Nicaise

Chéreau

Pinson‐Gadais

et al. 2022

J. Agric. Food Chem.

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Durum wheat is one of the cereal crops that accumulates the highest concentrations of cadmium (Cd) and deoxynivalenol (DON) mycotoxin in its grains, thereby affecting the safety of products made of durum wheat grains (pasta and semolina). This study investigates in planta the interaction between Cd and Fusarium graminearum, the main causal agent of DON accumulation in grains. A pot experiment was designed to characterize the response of durum wheat to F. graminearum infection at three levels of Cd exposure: 0.1, 2, and 10 mg Cd kg–1 soil, which showed that the accumulation of Cd and DON resulted from interacting processes. On the one hand, plant exposure to Cd reduced the concentration of DON in grains. The mitigating effect of Cd on DON accumulation was attributed to the restricted growth of F. graminearum, which could result from enhanced plant resistance to the fungal pathogen induced by Cd exposure. On the other hand, F. graminearum infection of durum wheat increased the Cd concentration in the grains. The promoting effect of Fusarium infection on Cd accumulation was attributed to decoupling of the allocation of Cd and photoassimilates to the grains and to the reduced strength of the grain sink for photoassimilates caused by the fungus. Provided that this result is confirmed in field conditions, it suggests that in Cd-contaminated soils, particular attention should be paid to agronomic practices that affect Fusarium head blight disease to avoid further increase in the risk of exceeding the regulatory limit set by the European Union for Cd in durum wheat.

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“…Currently, Sedum alfredii ( Hu et al, 2019 ), Solanum nigrum ( Dou et al, 2020 ), and Bidens pilosa ( Dou et al, 2019 ) have been studied extensively as hyperaccumulators based on their ability to grow in Cd-rich soils and to accumulate large amounts of Cd. In addition, cultivating low Cd crop varieties is one of the most effective ways of reducing the human health risk, and a great deal of research has been conducted on crops, such as rice ( Liu C. et al, 2020 ) and wheat ( Liu N. et al, 2020 ). However, there is only limited understanding of the mechanism of Cd detoxification and accumulation in plants, which hinders further development and application of hyperaccumulators and low Cd accumulation cultivars.…”

Section: Introductionmentioning

confidence: 99%

Physiological and Transcriptomic Comparison of Two Sunflower (Helianthus annuus L.) Cultivars With High/Low Cadmium Accumulation

Zhatova

et al. 2022

Front. Plant Sci.

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The toxic heavy metal cadmium (Cd) is easily absorbed and accumulated in crops and affects human health through the food chains. Sunflower (Helianthus annuus L.) is a globally important oil crop. In this study, two sunflower cultivars 62\3 (high Cd) and JB231AC (low Cd), were chosen to compare physiological and transcriptomic responses at different Cd concentrations (0, 25, 50, and 100 μM). The results showed that JB231AC had better Cd tolerance than 62\3. The contents of H2O2 and MDA (malondialdehyde) in 62\3 were lower than that in JB231AC under Cd stress, but the activities of SOD (superoxide dismutase) and POD (peroxidase) in JB231AC were higher than in 62\3, which indicated that JB231AC had a strong ability to remove reactive oxygen species (ROS)-induced toxic substances. Many deferentially expressed ABC (ATP-binding cassette) and ZIP (Zn-regulated transporter, Iron-regulated transporter-like protein) genes indicated that the two gene families might play important roles in different levels of Cd accumulation in the two cultivars. One up-regulated NRAMP (Natural resistance-associated macrophage protein) gene was identified and had a higher expression level in 62\3. These results provide valuable information to further understand the mechanism of Cd accumulation and provide insights into breeding new low Cd sunflower cultivars.

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Screening stably low cadmium and moderately high micronutrients wheat cultivars under three different agricultural environments of China

Cited by 56 publications

References 48 publications

Removal of Aquatic Cadmium Ions Using Thiourea Modified Poplar Biochar

Removal of Aquatic Cadmium Ions Using Thiourea Modified Poplar Biochar

Interaction between the Accumulation of Cadmium and Deoxynivalenol Mycotoxin Produced by Fusarium graminearum in Durum Wheat Grains

Physiological and Transcriptomic Comparison of Two Sunflower (Helianthus annuus L.) Cultivars With High/Low Cadmium Accumulation

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