Application of inorganic selenium to reduce accumulation and toxicity of heavy metals (metalloids) in plants: The main mechanisms, concerns, and risks

Feng, Renwei; Zhao, Pingping; Zhu, Yanming; Yang, JiGang; Wei, XinQi; Yang, Li; Hong, Liu; Rensing, Christopher; Ding, Yongzhen

doi:10.1016/j.scitotenv.2020.144776

Cited by 68 publications

(16 citation statements)

References 142 publications

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“…3) Creating a response to physiological metabolites, including proteins related to carbohydrate and energy metabolism, cell cycle and DNA replication, increased absorption and then redistribution of substances, recovery of the cell membrane and chloroplast structures (Ismael et al, 2018;Feng et al, 2021). Micronutrient deficiencies such as Zn, Se have become a global problem due to reduced mental and physical productivity and impaired growth and higher susceptibility to pathogens.…”

Section: Inorganic Fertilizermentioning

confidence: 99%

“…2) Regulation of the antioxidant system and the inhibition of ROS. 3) Creating a response to physiological metabolites, including proteins related to carbohydrate and energy metabolism, cell cycle and DNA replication, increased absorption and then redistribution of substances, recovery of the cell membrane and chloroplast structures ( Ismael et al., 2018 ; Feng et al., 2021 ).…”

Section: Introductionmentioning

confidence: 99%

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RETRACTED: Interaction between zinc and selenium bio-fortification and toxic metals (loid) accumulation in food crops

Bayanati

Al-Tawaha²,

Al-Taey³

et al. 2022

Front. Plant Sci.

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Biofortification is the supply of micronutrients required for humans and livestock by various methods in the field, which include both farming and breeding methods and are referred to as short-term and long-term solutions, respectively. The presence of essential and non-essential elements in the atmosphere, soil, and water in large quantities can cause serious problems for living organisms. Knowledge about plant interactions with toxic metals such as cadmium (Cd), mercury (Hg), nickel (Ni), and lead (Pb), is not only important for a healthy environment, but also for reducing the risks of metals entering the food chain. Biofortification of zinc (Zn) and selenium (Se) is very significant in reducing the effects of toxic metals, especially on major food chain products such as wheat and rice. The findings show that Zn- biofortification by transgenic technique has reduced the accumulation of Cd in shoots and grains of rice, and also increased Se levels lead to the formation of insoluble complexes with Hg and Cd. We have highlighted the role of Se and Zn in the reaction to toxic metals and the importance of modifying their levels in improving dietary micronutrients. In addition, cultivar selection is an essential step that should be considered not only to maintain but also to improve the efficiency of Zn and Se use, which should be considered more climate, soil type, organic matter content, and inherent soil fertility. Also, in this review, the role of medicinal plants in the accumulation of heavy metals has been mentioned, and these plants can be considered in line with programs to improve biological enrichment, on the other hand, metallothioneins genes can be used in the program biofortification as grantors of resistance to heavy metals.

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Section: Inorganic Fertilizermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

RETRACTED: Interaction between zinc and selenium bio-fortification and toxic metals (loid) accumulation in food crops

Bayanati

Al-Tawaha²,

Al-Taey³

et al. 2022

Front. Plant Sci.

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“…Up-to-date only one work devoted to foliar application of nano-Si on rice seedlings reported changes in micro-element content as affected by nano-Si and Cd application [55], where an increase in Mg, Fe and Zn content was detected [55]. It is well known that Se is an important antagonist of toxic metals and metalloids [52,56]. Indeed, Se biofortification resulted in a significant decrease in As, Cr, Pb, Sr and V content in chervil shoots, even without toxic element uptake (Table 7).…”

Section: Micro-elementsmentioning

confidence: 99%

Iodine and Selenium Biofortification of Chervil Plants Treated with Silicon Nanoparticles

Golubkina

Moldovan

Федотов

et al. 2021

Plants

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Production of functional food with high levels of selenium (Se) and iodine (I) obtained via plant biofortification shows significant difficulties due to the complex interaction between the two elements. Taking into account the known beneficial effect of silicon (Si) on plant growth and development, single and joint foliar biofortification of chervil plants with potassium iodide (150 mg L−1) and sodium selenate (10 mg L−1) was carried out in a pot experiment with and without Si nanoparticles foliar supplementation. Compared to control plants, nano-Si (14 mg L−1) increased shoot biomass in all treatments: by 4.8 times with Si; by 2.8 times with I + Si; by 5.6 times with Se + Si; by 4.0 times with I + Se + Si. The correspondent increases in root biomass were 4.5, 8.7, 13.3 and 10.0 times, respectively. The growth stimulation effect of Se, I and I + Se treatments resulted in a 2.7, 3.5 and 3.6 times increase for chervil shoots and 1.6, 3.1 and 8.6 times for roots, respectively. Nano-Si improved I biofortification levels by twice, while I and Se enhanced the plant content of each other. All treatments decreased nitrate levels, compared to control, and increased the photopigment accumulation. Improvement of total antioxidant activity and phenolic content was recorded only under the joint application of Se + I + Si. Foliar nano-Si treatment affected other element content in plants: decreased Na+ accumulation in single and joint supplementation with Se and I, restored Fe, Mn and Cr amount compared to the decreased levels recorded in separately Se and I fortified plants and promoted Al accumulation both with or without Se and I biofortification. The results of this research suggest high prospects of foliar nano-Si supply for enhancing both growth and joint I/Se biofortification of chervil.

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“…Nonetheless, stress-responsive genes still represent an important aspect of stress adaptation (Klsa 2017). A large number of genes and gene families have been identi ed in plants, which are playing key a role in metal uptake, transport, tolerance and detoxi cation (Brunet et al 2009;Wang et al 2013;Manoj et al 2020;Feng et al 2021). However, there are very few research highlighted the role of PGPR inoculation for enhanced tolerance and accumulation of heavy metals in plants by altering the expression pattern of related genes, which play a predominant role in metal stress response.…”

Section: Introductionmentioning

confidence: 99%

Plant growth promoting rhizobacteria modulates the antioxidant defense and the expression of stress-responsive genes providing Pb accumulation and tolerance of grass pea

Abdelkrim

Abid

Chaieb

et al. 2022

Environ Sci Pollut Res

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To ensure the success of phytoremediation, it is important to consider the appropriate combination of plants and microorganisms. This study was conducted to get a better insight into the underlying molecular and biochemical mechanism of grass pea (Lathyrus sativus L.) induced by plant growth promoting rhizobacteria (PGPR), when exposed for 3, 6, 9 and 14 days to 1 mM Pb in a hydroponic system.The signi cant positive effect of bacterial inoculation was reproduced in various parameters. Results indicated that inoculation of PGPR signi cantly increased the concentration of Pb by 20%, 66%, 43% and 36%, in roots and by 46%, 55%, 37%, 46% in shoots, respectively after 3, 6, 9 and 14 days of metal exposure as compared to the uninoculated plants. The metal accumulation in grass pea plants triggered a signi cant elevation in the synthesis of non-protein thiols (NPT), particularly in inoculated plant leaves where it was about 3 and 2-fold higher than the uninoculated set at 6 and 9 d. Nevertheless, Pb treatment signi cantly increased oxidative stress and membrane damage in leaves with the highest hydrogen peroxide (H 2 O 2 ) production and tissue malondialdehyde (MDA) concentration recorded in uninoculated plants. Further, the inoculation alleviated the oxidative stress, improved plant tolerance and modulated the activities of antioxidant enzymes (SOD, CAT, APX, GR, DHAR and MDHAR). Similary, the expression patterns of LsPCS, LsGCN, LsCNGC, LsGR and LsGST through qRT-PCR demonstrated that bacterial inoculation signi cantly induced gene expression levels in leaves 6 d after Pb treatment, indicating that PGPR act as regulators of stress responsive genes.The ndings suggest the key role of PGPR (R. leguminosarum (M5) + Pseudomonas uorescens (K23) + Luteibacter sp. + Variovorax sp.) in enhancing Pb accumulation, reducing metal toxicity, strengthening of the antioxidant system and conferring higher Pb tolerance to grass pea plants. Hence, the association Lathyrus sativus-PGPR is an effective tool to achieve the goal of remediation of Pb contaminated sites.

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Application of inorganic selenium to reduce accumulation and toxicity of heavy metals (metalloids) in plants: The main mechanisms, concerns, and risks

Cited by 68 publications

References 142 publications

RETRACTED: Interaction between zinc and selenium bio-fortification and toxic metals (loid) accumulation in food crops

RETRACTED: Interaction between zinc and selenium bio-fortification and toxic metals (loid) accumulation in food crops

Iodine and Selenium Biofortification of Chervil Plants Treated with Silicon Nanoparticles

Plant growth promoting rhizobacteria modulates the antioxidant defense and the expression of stress-responsive genes providing Pb accumulation and tolerance of grass pea

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