Do sulfur addition and rhizoplane iron plaque affect chromium uptake by rice (Oryza sativa L.) seedlings in solution culture?

Zandi, Peiman; Yang, Jianjun; Xia, Xing; Tian, Yu; Li, Qian; Możdżeń, Katarzyna; Barabasz‐Krasny, Beata; Wang, Yaosheng

doi:10.1016/j.jhazmat.2019.121803

Cited by 33 publications

(8 citation statements)

References 72 publications

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“…However, such processes can be influenced by plant species, Cr speciation and concentration in medium (González et al 2014). In line with our previous experiment, Cr (VI) was found to have a high mobility (Zandi et al 2020). Translocation efficiency (TE) of Cr, i.e.…”

Section: Effect Of S Supply On Cr and S Uptake By Ricesupporting

confidence: 89%

“…3. Our previous study found that IP had fewer barrier characteristics or physical resistance against Cr (VI) (Zandi et al 2020). Changes observed in Cr concentrations and translocation could be ascribed to S-mediated cellular detoxification of Cr through chelation and vacuolar sequestration in roots and shoots under Cr exposure, a mechanism that is mainly regulated by GSH or PC biosynthesis (Holland and Avery 2011;Cao et al 2018).…”

Section: Effect Of Iron Plaque On Cr Uptake and Translocationmentioning

confidence: 99%

“…IP has been reported to adsorb inorganic anions, including sulphate and the extent of such adsorption is highly associated with the amount of IP formed on the root surface (Sun et al 2016). These findings suggested that rice plants were likely able to oxidise more ferrous iron to Fe (III) when exposed to Cr stress by Smediated increased oxidation capacity (sulphate increased the rate of radial oxygen loss by optimising plant growth under Cr stress) (Zandi et al 2020) provided that sufficient S was applied. This partially explains the overall role of S nutrition in the induced enhancement of IP formation and deposition of other elements (Hu et al 2007;Cao et al 2018) by reducing osculation caused by iron-oxidising and reducing factor interactions (Tripathi et al 2014).…”

Section: Effect Of S On Iron Plaque Formation and Distribution Of Fe In Rice Plantsmentioning

confidence: 99%

“…Moderate S supply could possibly alleviate Cr toxicity in aerial plant parts through complexation of organic S compounds (e.g., PCs, GSH) with Cr and subsequent sequestration of the resulting Cr-PCs/-GSH complexes in rice roots (Fig. 5; Zandi et al 2020). Sulphur-mediated reduction of Cr content in shoots decreased the expression of genes (e.g., OsFRDL1, OsYSL15) associated with Fe homeostasis in rice (Holland and Avery 2011), and thus tended to reduce Fe root-to-shoot translocation.…”

Section: Effect Of S On Iron Plaque Formation and Distribution Of Fe In Rice Plantsmentioning

confidence: 99%

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Sulphur nutrition and iron plaque formation on roots of rice seedlings and their consequences for immobilisation and uptake of chromium in solution culture

et al. 2021

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Aims The contribution of sulphur (S)-induced responses to chromium (Cr) tolerance of rice plants is not yet fully elucidated. It is hypothesised that S nutrition mitigates the accumulation and toxicity of Cr through enhanced formation of iron plaque (IP) and S-containing chelators. This study aimed to investigate the responses of iron (Fe) and Cr availability and transfer in the hydroponic rice system to added S levels. Methods We explored the influence of S nutrition on Cr accumulation in rice under a combination of Cr (VI) (+Cr, -Cr) and S (0, 1.75, 3.5, 7 mM) treatments.Results S additions at rates of 1.75 and 3.5 mM gave the least decline in root and shoot growth of rice seedlings under Cr stress. Fe concentration in shoots was consistent with the level of Cr uptake. The subcellular distribution of Cr in roots and shoots differed with varying S supply levels. Our results also revealed that S treatment at a moderate level (3.5 mM) was more effective in suppressing the bioavailability of Cr in rice shoots than were the other levels. Conclusions S-induced reduction in shoot Cr concentration, particularly from 1.75 to 3.5 mM, was likely attributed to the enhanced biosynthesis of glutathione (GSH) and phytochelatins (PCs) in roots than the enhanced physical resistance of IP induced by S. The poor barrier capacity of IP to Cr absorption in rice plants primarily ascribed to the level of applied Cr concentration and partly to the competition between Cr and S at the absorbing sites.

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Section: Effect Of S Supply On Cr and S Uptake By Ricesupporting

confidence: 89%

Section: Effect Of Iron Plaque On Cr Uptake and Translocationmentioning

confidence: 99%

Section: Effect Of S On Iron Plaque Formation and Distribution Of Fe In Rice Plantsmentioning

confidence: 99%

Section: Effect Of S On Iron Plaque Formation and Distribution Of Fe In Rice Plantsmentioning

confidence: 99%

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Sulphur nutrition and iron plaque formation on roots of rice seedlings and their consequences for immobilisation and uptake of chromium in solution culture

et al. 2021

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“…One possibility could be the formation of iron plaque at the root levels. Research shows that the formation of iron plaque on the roots induces variations in the movement of nutrients and trace elements within the plant, e.g., increases of P, S and Mg uptake [ 52 , 53 ], which could explain the increase of Mg and Fe contents in the roots of A. capillaris at higher nZVI concentrations ( Figure 5 ). Most of the information available on iron plaque formation comes from experiments performed on rice and other well-known halophytes or flood-resistant species.…”

Section: Resultsmentioning

confidence: 99%

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

et al. 2020

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Two Poaceae species, Agrostis capillaris and Festuca rubra, were selected for their potential as phytostabilizing plants in multicontaminated soils. These species are resistant to contamination and maintain high concentrations of contaminants at the root level. Nanoscale zero-valent iron (nZVI) is an engineered nanomaterial with the ability to stabilize metal(loid)s in soils; its potential toxicological effects in the selected species were studied in a germination test using: (i) control variant without soil; (ii) soil contaminated with Pb and Zn; and (iii) contaminated soil amended with 1% nZVI, as well as in an hydroponic experiment with the addition of nZVI 0, 25, 50 and 100 mg L−1. nZVI had no negative effects on seed germination or seedling growth, but was associated with an increase in shoot growth and reduction of the elongation inhibition rate (root-dependent) of F. rubra seedlings. However, applications of nZVI in the hydroponic solution had no effects on F. rubra but A. capillaris developed longer roots and more biomass. Increasing nZVI concentrations in the growing solution increased Mg and Fe uptake and reduced the Fe translocation factor. Our results indicate that nZVI has few toxic effects on the studied species.

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Boron deficiency decreased the root activity of Ga-exposed rice seedlings by reducing iron accumulation and increasing Ga in iron plaque

Ren,

Li,

Ullah

et al. 2024

Ecotoxicology

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Do sulfur addition and rhizoplane iron plaque affect chromium uptake by rice (Oryza sativa L.) seedlings in solution culture?

Cited by 33 publications

References 72 publications

Sulphur nutrition and iron plaque formation on roots of rice seedlings and their consequences for immobilisation and uptake of chromium in solution culture

Sulphur nutrition and iron plaque formation on roots of rice seedlings and their consequences for immobilisation and uptake of chromium in solution culture

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

Boron deficiency decreased the root activity of Ga-exposed rice seedlings by reducing iron accumulation and increasing Ga in iron plaque

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