Ultramafic soils and nickel phytomining opportunities: A review

Nascimento, Clístenes Williams Araújo do; Lima, Luiz Henrique Vieira; Silva, Ygor Jacques Agra Bezerra da; Biondi, Caroline Miranda

doi:10.36783/18069657rbcs20210099

Cited by 17 publications

(4 citation statements)

References 91 publications

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“…The database of hyperaccumulators currently catalogs 721 species demonstrating hyperaccumulation of metals and metalloids, with some species even displaying the capacity to hyperaccumulate more than one metal [ 15 ]. Extraordinary high accumulation and tolerance of hyperaccumulators to various metals and metalloids make them versatile tools for phytoremediation [ 16 ]. Hyperaccumulation of metals and metalloids in plant tissues can elucidate the adaptability of these plants to both biotic and abiotic stresses.…”

Section: Introductionmentioning

confidence: 99%

Advances in the Involvement of Metals and Metalloids in Plant Defense Response to External Stress

Zhang,

Liu,

Song

et al. 2024

Plants

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Plants, as sessile organisms, uptake nutrients from the soil. Throughout their whole life cycle, they confront various external biotic and abiotic threats, encompassing harmful element toxicity, pathogen infection, and herbivore attack, posing risks to plant growth and production. Plants have evolved multifaceted mechanisms to cope with exogenous stress. The element defense hypothesis (EDH) theory elucidates that plants employ elements within their tissues to withstand various natural enemies. Notably, essential and non-essential trace metals and metalloids have been identified as active participants in plant defense mechanisms, especially in nanoparticle form. In this review, we compiled and synthetized recent advancements and robust evidence regarding the involvement of trace metals and metalloids in plant element defense against external stresses that include biotic stressors (such as drought, salinity, and heavy metal toxicity) and abiotic environmental stressors (such as pathogen invasion and herbivore attack). We discuss the mechanisms underlying the metals and metalloids involved in plant defense enhancement from physiological, biochemical, and molecular perspectives. By consolidating this information, this review enhances our understanding of how metals and metalloids contribute to plant element defense. Drawing on the current advances in plant elemental defense, we propose an application prospect of metals and metalloids in agricultural products to solve current issues, including soil pollution and production, for the sustainable development of agriculture. Although the studies focused on plant elemental defense have advanced, the precise mechanism under the plant defense response still needs further investigation.

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Section: Introductionmentioning

confidence: 99%

Advances in the Involvement of Metals and Metalloids in Plant Defense Response to External Stress

Zhang,

Liu,

Song

et al. 2024

Plants

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“…Measuring the concentration of metals in plants helps prospect species for environmental remediation and food safety and aids in soil fertility management. Metal concentration in plant tissues can vary signi cantly, with plants displaying distinct adaptations to high metal concentrations in soils that range from avoidance (or exclusion) to hyperaccumulation (Krämer, 2010;Nascimento et al, 2022;Purwadi et al, 2022). Therefore, the plant analysis via pXRF must ideally be able to measure metals in a wide range of concentrations.…”

Section: Introductionmentioning

confidence: 99%

“…Nickel is a potentially toxic metal commonly reported to contaminate soil and water and is also much valued in the phytotechnology market (Nkrumah et al, 2017;Nascimento et al, 2022). Therefore, using plants to clean up Ni-polluted soils (phytoremediation) or mine Ni-rich substrates and soils using Ni hyperaccumulators (agromining) has increasingly gained attention (Tognacchini et al, 2020;Samojedny Jr et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

The use of a portable X-ray fluorescence spectrometer for measuring nickel in plants: sample preparation and validation

Lima,

da Silva,

Echevarria

et al. 2024

Environ Monit Assess

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X-ray uorescence is a fast, costly, and eco-friendly method for elemental analyses. Portable X-ray uorescence spectrometers (pXRF) have proven instrumental in detecting metals across diverse matrices, including plants. However, sample preparation and measurement procedures need to be standardized for each instrument. This study examined sample preparation methods and predictive capabilities for nickel (Ni) concentrations in various plants using pXRF, employing empirical calibration based on ICP-OES Ni data. The evaluation involved 300 plant samples of 14 species with varying patterns of Ni accumulation. Various dwell times (30, 60, 90, 120, 300 s) and sample masses (0.5, 1.0, 1.5, 2.0 g) were tested. Calibration models were developed through empirical and correction factor approaches. Results showed that using less than 1.0 g of sample and dwell time below 60 seconds for the study conditions led to decreased Ni detection by pXRF. Ni concentrations determined by ICP-OES were highly correlated (R² = 0.94) with those measured by the pXRF instrument. Therefore, pXRF can provide reliable detection of Ni in plant samples, avoiding the digestion of samples and reducing the decision-making time in environmental management.

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“…Weathering of ultramafic rocks results in formation of serpentine soils, which have low amounts of plant nutrients like P, K, and Ca but high quantities of metals such as Ni, Cr, and Co. Less than 45% of the silica in these rocks is composed of ferromagnesian silicate minerals (Nascimento et al, 2022). The serpentinite, dunite, and peridotite are the most common ultramafic rocks.…”

Section: Introductionmentioning

confidence: 99%

Strontium Accumulations by Teucrium polium which Grows Naturally in Serpentine Soils

Konakcı

2024

Gazi University Journal of Science Part A: Engineering and Innovation

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The study area is the region where Turkey's most important chrome deposits are located, and extensive serpentine soils are widespread in the region. ın this study, strontium uptake accumulations in the roots and shoots of the Teucrium polium plant growing on serpentine soils in the region were examined.In this context, the soil, roots and shoots of 17 Teucrium polium plants growing on serpentine soils were collected and chemically analyzed for strontium. Chemical analyzes were carried out in ICP-MS (Inductively Coupled Plasma-Mass Spectrometry). On average, strontium values of 15.2 ppm in the soil, 26.4 in the root and 76.3 ppm in the shoots were detected. Strontium enrichment values in the soil, roots and shoots of this plant were determined as 1.8 for ECR, 5.3 for ECS and 2.9 for TLF. This study shows that the Teucrium polium plant accumulates significant amounts of strontium from the soil, both in the root and in the shoots. As a result, this plant can be used as a bioaccumulator plant, especially in the reclamation of strontium-polluted soils and the improvement of such areas.

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Ultramafic soils and nickel phytomining opportunities: A review

Cited by 17 publications

References 91 publications

Advances in the Involvement of Metals and Metalloids in Plant Defense Response to External Stress

Advances in the Involvement of Metals and Metalloids in Plant Defense Response to External Stress

The use of a portable X-ray fluorescence spectrometer for measuring nickel in plants: sample preparation and validation

Strontium Accumulations by Teucrium polium which Grows Naturally in Serpentine Soils

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