Ecological risk assessment of cerium for tropical agroecosystems

Moreira, Cristiano Gonçalves; Carvalho, Teotônio Soares de; Oliveira, Cynthia de; Abreu, Lívia Botelho de; Castro, Ana Carolina Simplício de; Ribeiro, Paula Godinho; Bispo, Fábio Henrique Alves; Boutin, Céline; Guilherme, Luiz Roberto Guimarães

doi:10.1016/j.chemosphere.2018.12.195

Cited by 27 publications

(5 citation statements)

References 54 publications

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“…Similar results were found by exposing rice or duckweed to Ce, with an evident shift from stimulating to inhibitory effects by increasing Ce concentrations (Ramírez-Olvera et al 2018 ; Zicari et al 2018 ). While the effects of Ce may be species-specific, as measured in eight different plant species, soil properties also can significantly influence the severity of Ce phytotoxicity (Moreira et al 2019 ).…”

Section: Ree-associated Effects On Plant Growthmentioning

confidence: 99%

Review of Rare Earth Elements as Fertilizers and Feed Additives: A Knowledge Gap Analysis

Tommasi

Thomas

Pagano

et al. 2020

Arch Environ Contam Toxicol

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Rare earth elements (REEs) are key constituents of modern technology and play important roles in various chemical and industrial applications. They also are increasingly used in agricultural and zootechnical applications, such as fertilizers and feed additives. Early applications of REEs in agriculture have originated in China over the past several decades with the objective of increasing crop productivity and improving livestock yield (e.g., egg production or piglet growth). Outside China, REE agricultural or zootechnical uses are not currently practiced. A number of peer-reviewed manuscripts have evaluated the adverse and the positive effects of some light REEs (lanthanum and cerium salts) or REE mixtures both in plant growth and in livestock yield. This information was never systematically evaluated from the growing body of scientific literature. The present review was designed to evaluate the available evidence for adverse and/or positive effects of REE exposures in plant and animal biota and the cellular/molecular evidence for the REE-associated effects. The overall information points to shifts from toxic to favorable effects in plant systems at lower REE concentrations (possibly suggesting hormesis). The available evidence for REE use as feed additives may suggest positive outcomes at certain doses but requires further investigations before extending this use for zootechnical purposes.

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Section: Ree-associated Effects On Plant Growthmentioning

confidence: 99%

Review of Rare Earth Elements as Fertilizers and Feed Additives: A Knowledge Gap Analysis

Tommasi

Thomas

Pagano

et al. 2020

Arch Environ Contam Toxicol

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“…The dry biomass parameter was the most sensitive for the observed phytotoxicity. The deleterious effects observed in this study occurred due to Ce accumulation in cells, causing structural damage and nutritional balance alterations, as well as decreased photosynthesis and growth or cell death (Moreira et al 2019).…”

Section: Discussionmentioning

confidence: 77%

Phytotoxicity of single and mixed Rare Earth Element (La, Nd and Sm) exposures on Lactuca sativa seed germination and growth

Egler,

Roldão,

Santos

et al. 2024

Preprint

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The mode of action, bioaccumulation potential and toxicity of Rare Earth Elements (REE), with several applications in the technology, medical and agricultural fields, are still understudied. The nitrates acute effects on single exposures, binary and ternary mixtures of lanthanum (La), neodymium (Nd) and samarium (Sm) on Lactuca sativa lettuce seed germination and wet biomass in an artificial soil (AS) and an Ultisol were assessed. Germination (EC50), wet biomass (IC50) and germination inhibition (% GI) were evaluated. EC50 values La was the most toxic in PVA, Sm in AS, and Nd appears with intermediate values on both substrates. The IC50, both single and mixed, decreased from 3- to 181-fold with increasing test concentrations in relation to the control in AS, while increases in Ultisol were observed, followed by decreases at higher doses which may be associated with the low-dose stimulation effect (hormesis). Our findings may be used to subsidize REE risk assessment studies and reinforce the hormesis effect to prevent the use of high application of REE fertilizers, avoiding the accumulation of REE in agricultural soils.

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“…Many researchers have reported that Ce 3+ ions can have positive and negative effects on plant growth, development, and production depending on the applied concentrations, the tested plant species and the environmental conditions, suggesting a potential hormetic effect on plant biology. 26,27 However, some researchers have suggested that Ce 3+ ions are highly toxic even at low concentrations with no beneficial effect. 28,29 In the toxicity assessment of metal and metal oxide NPs, one of the most important questions is whether toxicity originates from the particles themselves or the released metal ions.…”

Section: Discussionmentioning

confidence: 99%

Understanding the phytotoxic effects of CeO₂ nanoparticles on the growth and physiology of soybean (Glycine max L. Merrill) in soil media

Xin,

Fan,

Zhao

et al. 2023

Environ. Sci.: Nano

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Ecological risk assessment of cerium for tropical agroecosystems

Cited by 27 publications

References 54 publications

Review of Rare Earth Elements as Fertilizers and Feed Additives: A Knowledge Gap Analysis

Review of Rare Earth Elements as Fertilizers and Feed Additives: A Knowledge Gap Analysis

Phytotoxicity of single and mixed Rare Earth Element (La, Nd and Sm) exposures on Lactuca sativa seed germination and growth

Understanding the phytotoxic effects of CeO₂ nanoparticles on the growth and physiology of soybean (Glycine max L. Merrill) in soil media

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Ecological risk assessment of cerium for tropical agroecosystems

Cited by 27 publications

References 54 publications

Review of Rare Earth Elements as Fertilizers and Feed Additives: A Knowledge Gap Analysis

Review of Rare Earth Elements as Fertilizers and Feed Additives: A Knowledge Gap Analysis

Phytotoxicity of single and mixed Rare Earth Element (La, Nd and Sm) exposures on Lactuca sativa seed germination and growth

Understanding the phytotoxic effects of CeO2 nanoparticles on the growth and physiology of soybean (Glycine max L. Merrill) in soil media

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Understanding the phytotoxic effects of CeO₂ nanoparticles on the growth and physiology of soybean (Glycine max L. Merrill) in soil media