Interactions of cadmium and zinc in high zinc tolerant native species Andropogon gayanus cultivated in hydroponics: growth endpoints, metal bioaccumulation, and ultrastructural analysis

Ribeiro, Paula Godinho; Martins, Gabriel Caixeta; Moreira, Cristiano Gonçalves; Oliveira, Cynthia de; Andrade, Maria Luiza de Carvalho; Sales, Thaís Silva; Chagas, Wantuir Filipe Teixeira; Labory, Cláudia Regina Gontijo; Carvalho, Teotônio Soares de; Guilherme, Luiz Roberto Guimarães

doi:10.1007/s11356-020-10183-7

Cited by 11 publications

(4 citation statements)

References 70 publications

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“…Consequently, a lower synthesis of Zn ligands leads to higher Zn accumulation in the roots. Zinc was much more accumulated in the roots than the shoots in Andropogon gayanus exposed to 142.3 up to 854.0 μmol Zn L –1 for 7 weeks ( Ribeiro et al, 2020 ). Nardis et al (2018) mentioned that in different genotypes of P. maximum , the Zn concentrations in the roots were higher than in the shoots.…”

Section: Uptake Transport Accumulation and Toxicity Of Trace Elements In Grassesmentioning

confidence: 99%

“…In P. maximum , B. brizantha , and B. decumbens , Zn toxicity also led to lower root growth ( Nardis et al, 2018 ). In A. gayanus , Zn toxicity induced the vesiculation, vacuolation, and withdrawal of the plasma membrane from the root cell wall ( Ribeiro et al, 2020 ). Zinc can also affect proteins, mainly the –SH groups of the plasma membrane and affects membrane stability.…”

Section: Uptake Transport Accumulation and Toxicity Of Trace Elements In Grassesmentioning

confidence: 99%

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Are Grasses Really Useful for the Phytoremediation of Potentially Toxic Trace Elements? A Review

et al. 2021

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The pollution of soil, water, and air by potentially toxic trace elements poses risks to environmental and human health. For this reason, many chemical, physical, and biological processes of remediation have been developed to reduce the (available) trace element concentrations in the environment. Among those technologies, phytoremediation is an environmentally friendly in situ and cost-effective approach to remediate sites with low-to-moderate pollution with trace elements. However, not all species have the potential to be used for phytoremediation of trace element-polluted sites due to their morpho-physiological characteristics and low tolerance to toxicity induced by the trace elements. Grasses are prospective candidates due to their high biomass yields, fast growth, adaptations to infertile soils, and successive shoot regrowth after harvest. A large number of studies evaluating the processes related to the uptake, transport, accumulation, and toxicity of trace elements in grasses assessed for phytoremediation have been conducted. The aim of this review is (i) to synthesize the available information on the mechanisms involved in uptake, transport, accumulation, toxicity, and tolerance to trace elements in grasses; (ii) to identify suitable grasses for trace element phytoextraction, phytostabilization, and phytofiltration; (iii) to describe the main strategies used to improve trace element phytoremediation efficiency by grasses; and (iv) to point out the advantages, disadvantages, and perspectives for the use of grasses for phytoremediation of trace element-polluted soils.

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Section: Uptake Transport Accumulation and Toxicity Of Trace Elements In Grassesmentioning

confidence: 99%

Section: Uptake Transport Accumulation and Toxicity Of Trace Elements In Grassesmentioning

confidence: 99%

Are Grasses Really Useful for the Phytoremediation of Potentially Toxic Trace Elements? A Review

et al. 2021

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“…Rizwan et al 2019a), but the opposite has also been reported(Ribeiro et al 2020). The loess soil used in the present study had a low Zn bioavailability; when no Zn was added, the DTPA-extractable Zn concentration was 0.35 mg kg − 1 , and insu cient for optimal plant growth(Broadley et al 2007;He et al 2021a…”

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confidence: 43%

Application of zinc oxide reduces the bioavailability and specific uptake of cadmium by alfalfa grown in a cadmium-contaminated alkaline soil

Zhang

2022

Preprint

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Aims Zinc (Zn) and cadmium (Cd) have similar chemical properties and interact with each other in the soil-plant system. Application of Zn may be an effective way for phytoremediation of Cd-contaminated soils.Methods A greenhouse pot experiment was carried out to grow alfalfa in an alkaline soil spiked with different rates of Cd (0, 20, and 80 mg kg–1) and Zn (0, 200, and 800 mg kg–1) as cadmium oxide (CdO) and zinc oxide (ZnO), respectively, to investigate the effects of ZnO application on soil Cd bioavailability, plant growth and Cd uptake. Results Adding ZnO resulted in a lower soil pH and greater DTPA-extractable Zn concentration, but a lower DTPA-extractable Cd concentration. The effect of ZnO addition on Cd bioavailability depended on both soil Cd level and Zn dose. Soil Cd contamination considerably inhibited plant growth and increased both root and shoot Cd concentrations. Adding ZnO significantly enhanced plant growth and reduced specific Cd uptake by roots and plant Cd concentrations, but did not affect the total amount of Cd taken up by plants. The percentage of total plant Cd content allocated to roots was significantly lower, but the root-to-shoot translocation factor of Cd was higher when ZnO was added. Both CdO and ZnO addition had a small effect on root exudation of carboxylates. Conclusions Application of ZnO to soil alleviated Zn deficiency and reduced Cd bioavailability, consequently enhanced plant growth and Cd concentrations, and it may be a cost-effective way for phytoremediation of Cd-contaminated soils.

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“…Many studies have reported positive plant growth responses to Zn application under Cd stress (Faizan et al 2021a; Hussain et al 2018; Rizwan et al 2019a), but the opposite has also been reported(Ribeiro et al 2020). The loess soil used in the present study had a low Zn bioavailability; when no Zn was added, the DTPA-extractable Zn concentration was 0…”

mentioning

confidence: 99%

Application of Zinc Oxide Reduces the Bioavailability and Specific Uptake of Cadmium by Alfalfa Grown in a Cadmium-contaminated Alkaline Soil

Zhang

2022

Preprint

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Zinc (Zn) and cadmium (Cd) have similar chemical properties and interact with each other in the soil-plant system. Application of Zn may be an effective way for phytoremediation of Cd-contaminated soils. A greenhouse pot experiment was carried out to grow alfalfa in an alkaline soil spiked with Cd (0, 20, and 80 mg kg–1) and Zn (0, 200, and 800 mg kg–1) as cadmium oxide (CdO) and zinc oxide (ZnO), respectively, to investigate the effects of ZnO application on soil Cd bioavailability, plant growth and Cd uptake. Adding ZnO resulted in a lower soil pH and greater DTPA-extractable Zn concentration, but a lower DTPA-extractable Cd concentration. The effect of ZnO addition on Cd bioavailability depended on both soil Cd level and Zn dose. Soil Cd contamination considerably inhibited plant growth and increased both root and shoot Cd concentrations. Adding ZnO significantly enhanced plant growth, reduced Cd uptake per unit root dry mass and plant Cd concentrations, but did not affect the total amount of Cd taken up by plants. The percentage of total plant Cd content allocated to roots was significantly lower, but the root-to-shoot translocation factor of Cd was higher when ZnO was added. Both CdO and ZnO addition had a small effect on root exudation of carboxylates. Application of ZnO to soil alleviated Zn deficiency and reduced Cd bioavailability, consequently enhanced plant growth and Cd concentrations, and it may be an effective way for phytoremediation of Cd-contaminated soils.

show abstract

Interactions of cadmium and zinc in high zinc tolerant native species Andropogon gayanus cultivated in hydroponics: growth endpoints, metal bioaccumulation, and ultrastructural analysis

Cited by 11 publications

References 70 publications

Are Grasses Really Useful for the Phytoremediation of Potentially Toxic Trace Elements? A Review

Are Grasses Really Useful for the Phytoremediation of Potentially Toxic Trace Elements? A Review

Application of zinc oxide reduces the bioavailability and specific uptake of cadmium by alfalfa grown in a cadmium-contaminated alkaline soil

Application of Zinc Oxide Reduces the Bioavailability and Specific Uptake of Cadmium by Alfalfa Grown in a Cadmium-contaminated Alkaline Soil

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