Nanoscale Zero-Valent Iron Has Minimum Toxicological Risk on the Germination and Early Growth of Two Grass Species with Potential for Phytostabilization

Teodoro, Manuel; Clemente, Rafael; Ferrer-Bustins, Ermengol; Martínez-Fernández, Domingo; Bernal, M.P.; Vítková, Martina; Vítek, Petr; Komárek, Michael

doi:10.3390/nano10081537

Cited by 11 publications

(3 citation statements)

References 53 publications

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“…Literature has shown that organic amendment techniques can help to remove HMs like Cd, As, Cr, Pb, Cu, and Zn from soil [29]. From the above-mentioned information, we can conclude that ryegrass was easy to establish, produced higher biomass much faster, and was well adapted to hazardous habitats like those with drought, salinity, and HMs [30].…”

Section: Introductionmentioning

confidence: 95%

Farmyard Manure Enhances Phytoremediation and Mitigates Pb, Cd, and Drought Stress in Ryegrass

Nasir,

Khan,

Asif

et al. 2023

Sustainability

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Here, a pot experiment was designed to evaluate the phytoremediation potential of ryegrass (Lolium perennne L.) for Pb- and Cd-polluted soils under various drought levels in the presence of farmyard manure (FYM). Three levels of Pb (0, 300, and 600 mg kg−1), Cd (0, 100, and 200 mg kg−1), and drought (field capacity 100, 50, and 30%) as well as two levels of FYM (0 and 1%) were used in this experiment. Results from this study showed a significant decrease (up to 84%) in the overall growth and physiology of ryegrass. A substantial increase in antioxidants (SOD, CAT, and POD) was observed under HMs and drought stress. By the application of FYM, antioxidant activities were significantly reduced. The ryegrass accumulated higher amounts of Pb (up to 150 mg kg−1 in shoots and 193 mg kg−1 in roots) and Cd (up to 71 mg kg−1 in shoots and 92 mg kg−1 in roots) in plant tissues; however, an FYM addition significantly reduced the accumulation of both metals. Furthermore, the results of this research indicated that ryegrass has a promising ability to phytoremediate Pb and Cd, and the addition of FYM may be helpful in enhancing metal stabilization and plant growth despite water constraints.

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Section: Introductionmentioning

confidence: 95%

Farmyard Manure Enhances Phytoremediation and Mitigates Pb, Cd, and Drought Stress in Ryegrass

Nasir,

Khan,

Asif

et al. 2023

Sustainability

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“…In the case of the peanut plant, low concentrations of nZVI not only provoked the growth of the plant, but were also associated with seed germination by penetrating the peanut shells in order to increase water uptake [29]. Two grass species exhibited no symptoms of toxicity under nZVI application, and even biomass production and root growth increased, especially in the case of A. capillaris [30]. Positive effects of plant growth were observed even for high concentrations of nZVI [31,32].…”

Section: Introductionmentioning

confidence: 99%

Study of the Stability, Uptake and Transformations of Zero Valent Iron Nanoparticles in a Model Plant by Means of an Optimised Single Particle ICP-MS/MS Method

et al. 2023

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In the context of the widespread distribution of zero valent iron nanoparticles (nZVI) in the environment and its possible exposure to many aquatic and terrestrial organisms, this study investigates the effects, uptake, bioaccumulation, localisation and possible transformations of nZVI in two different forms (aqueous dispersion—Nanofer 25S and air-stable powder—Nanofer STAR) in a model plant—Arabidopsis thaliana. Seedlings exposed to Nanofer STAR displayed symptoms of toxicity, including chlorosis and reduced growth. At the tissue and cellular level, the exposure to Nanofer STAR induced a strong accumulation of Fe in the root intercellular spaces and in Fe-rich granules in pollen grains. Nanofer STAR did not undergo any transformations during 7 days of incubation, while in Nanofer 25S, three different behaviours were observed: (i) stability, (ii) partial dissolution and (iii) the agglomeration process. The size distributions obtained by SP-ICP-MS/MS demonstrated that regardless of the type of nZVI used, iron was taken up and accumulated in the plant, mainly in the form of intact nanoparticles. The agglomerates created in the growth medium in the case of Nanofer 25S were not taken up by the plant. Taken together, the results indicate that Arabidopsis plants do take up, transport and accumulate nZVI in all parts of the plants, including the seeds, which will provide a better understanding of the behaviour and transformations of nZVI once released into the environment, a critical issue from the point of view of food safety.

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“…Seeking new, safe, and more effective materials which can be used as soil additives which aid the processes of immobilizing contaminants in the soil is of key importance when it comes to intensifying the processes of immobilizing PTEs in the soil and improving its quality. Upon analyzing the findings from recent years, the use of nanoparticles of zero valent iron (nZVI) in aiding the remediation and phytoremediation processes of soils contaminated with PTEs may offer a new promising alternative in comparison to commonly applied soil additives [ 16 , 17 , 18 , 19 , 20 ]. Above all, it is thanks to this result the reduction and catalytic properties of nZVI, that it is possible to apply them practically in technologies for the reclamation of soils and groundwater [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

Nano Zero Valent Iron (nZVI) as an Amendment for Phytostabilization of Highly Multi-PTE Contaminated Soil

et al. 2021

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In recent years, a lot of attention has been given to searching for new additives which will effectively facilitate the process of immobilizing contaminants in the soil. This work considers the role of the enhanced nano zero valent iron (nZVI) strategy in the phytostabilization of soil contaminated with potentially toxic elements (PTEs). The experiment was carried out on soil that was highly contaminated with PTEs derived from areas in which metal waste had been stored for many years. The plants used comprised a mixture of grasses—Lolium perenne L. and Festuca rubra L. To determine the effect of the nZVI on the content of PTEs in soil and plants, the samples were analyzed using flame atomic absorption spectrometry (FAAS). The addition of nZVI significantly increased average plant biomass (38%), the contents of Cu (above 2-fold), Ni (44%), Cd (29%), Pb (68%), Zn (44%), and Cr (above 2-fold) in the roots as well as the soil pH. The addition of nZVI, on the other hand, was most effective in reducing the Zn content of soil when compared to the control series. Based on the investigations conducted, the application of nZVI to soil highly contaminated with PTEs is potentially beneficial for the restoration of polluted lands.

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Nanoscale Zero-Valent Iron Has Minimum Toxicological Risk on the Germination and Early Growth of Two Grass Species with Potential for Phytostabilization

Cited by 11 publications

References 53 publications

Farmyard Manure Enhances Phytoremediation and Mitigates Pb, Cd, and Drought Stress in Ryegrass

Farmyard Manure Enhances Phytoremediation and Mitigates Pb, Cd, and Drought Stress in Ryegrass

Study of the Stability, Uptake and Transformations of Zero Valent Iron Nanoparticles in a Model Plant by Means of an Optimised Single Particle ICP-MS/MS Method

Nano Zero Valent Iron (nZVI) as an Amendment for Phytostabilization of Highly Multi-PTE Contaminated Soil

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