Reduced cadmium accumulation in tobacco by sodium chloride priming

Yang, Jingli; Dai, Yanjiao; Liu, Yongjun; Duan, Shuhui; Li, Yangyang; Hu, Risheng; Zhou, Zhi; Liu, Haiwei; Wang, Shusheng

doi:10.1007/s11356-020-09134-z

Cited by 8 publications

(7 citation statements)

References 41 publications

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“…This could potentially explain the positive influence of K 2 O and Na 2 O on Cd accumulation observed in this study. Furthermore, Na 2 O and K 2 O might also enhance Cd accumulation in paddy rice by altering the structure of microorganisms ( Yang et al, 2020 ; Wang et al, 2021 ; Zheng et al, 2021 ). Nevertheless, this study did not assess indicators related to rice growth and soil microorganisms.…”

Section: Resultsmentioning

confidence: 99%

Health and ecological risk of heavy metals in agricultural soils related to Tungsten mining in Southern Jiangxi Province, China

Lai,

Ni,

et al. 2024

PeerJ

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Background Dayu County, a major tungsten producer in China, experiences severe heavy metal pollution. This study evaluated the pollution status, the accumulation characteristics in paddy rice, and the potential ecological risks of heavy metals in agricutural soils near tungsten mining areas of Dayu County. Furthermore, the impacts of soil properties on the accumulation of heavy metals in soil were explored. Methods The geo-accumulation index (Igeo), the contamination factor (CF), and the pollution load index (PLI) were used to evaluate the pollution status of metals (As, Cd, Cu, Cr, Pb, Mo, W, and Zn) in soils. The ecological risk factor (RI) was used to assess the potential ecological risks of heavy metals in soil. The health risks and accumulation of heavy metals in paddy rice were evaluated using the health risk index and the translocation factor (TF), respectively. Pearson’s correlation coefficient was used to discuss the influence of soil factors on heavy metal contents in soil. Results The concentrations of metals exceeded the respective average background values for soils (As: 10.4, Cd: 0.10, Cu: 20.8, Cr: 48.0, Pb: 32.1, Mo: 0.30, W: 4.93, Zn: 69.0, mg/kg). The levels of As, Cd, Mo, and tungsten(W) exceeded the risk screening values for Chinese agricultural soil contamination and the Dutch standard. The mean concentrations of the eight tested heavy metals followed the order FJ-S > QL > FJ-N > HL > CJ-E > CJ-W, with a significant distribution throughout the Zhangjiang River basin. Heavy metals, especially Cd, were enriched in paddy rice. The Igeo and CF assessment indicated that the soil was moderately to heavily polluted by Mo, W and Cd, and the PLI assessment indicated the the sites of FJ-S and QL were extremely severely polluted due to the contribution of Cd, Mo and W. The RI results indicated that Cd posed the highest risk near tungsten mining areas. The non-carcinogenic and total carcinogenic risks were above the threshold values (non-carcinogenic risk by HQ > 1, carcinogenic risks by CR > 1 × 10−4 a−1) for As and Cd. Correlation analysis indicated that K2O, Na2O, and CaO are main factors affecting the accumulation and migration of heavy metals in soils and plants. Our findings reveal significant contamination of soils and crops with heavy metals, especially Cd, Mo, and W, near mining areas, highlighting serious health risks. This emphasizes the need for immediate remedial actions and the implementation of stringent environmental policies to safeguard health and the environment.

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Section: Resultsmentioning

confidence: 99%

Health and ecological risk of heavy metals in agricultural soils related to Tungsten mining in Southern Jiangxi Province, China

Lai,

Ni,

et al. 2024

PeerJ

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“…The seeds were germinated and grown in sterilized quartz sand for seven weeks under controlled conditions typical for tobacco cultivation. Subsequently, the tobacco seedlings were transplanted to three different concentrations of a modified Hoagland solution (50 %, 75 %, and 100 % of the original concentration) [ 16 ] consisting of 1 M K 2 SO 4 , 250 mM NaH 2 PO 4 , 1.88 M Ca(NO 3 ) 2 , 250 mM MgSO 4 , 20 mM FeSO 4 , 10 mM Na 2 -EDTA, 36 mM MnCl 2 , 184 mM H 3 BO 3 , 3.2 mM ZnSO 4 , 1.2 mM CuSO 4 , and 300 μM (NH 4 ) 6 Mo 7 O 24 with a pH of 6.0. The seedlings were exposed to each solution concentration for three days, in ascending order, ensuring the solution was well aerated and renewed every three days.…”

Section: Methodsmentioning

confidence: 99%

“…Some members of the P1B-type ATPase family (heavy metal ATPase, HMAs) are known to simultaneously manage both Zn and Cd transport in tobacco [ 4 ], Arabidopsis [ 13 ], and rice [ 14 ]. Recent studies have shown that reinforcing root lignification, achieved through ectopic expression [ 15 ] or chemical induction [ 16 ], can reduce Cd accumulation in plants, possibly by limiting the apoplastic transport efficiency of Cd, as seen in wheat [ 17 ], soybean [ 18 ], and tobacco [ 16 ]. However, it remains unclear whether the intensified root lignification would hinder the absorption of plant-essential DMIs, such as Zn.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the present study aims to investigate the impacts of intensified root lignification on Cd and Zn uptakes in tobacco cultivar K326. To achieve reinforced root lignification in tobacco, we selected sodium chloride (NaCl) as the chemical induction agent, based primarily on our previous screening results among nine candidates, including NaCl, Cd(CH 3 COO) 2 , Cd(NO 3 ) 2 , CdCl 2 , KHNO 3 , polyethylene glycol 6000 (PEG-6000), indole-3-acetic acid (IAA), β -aminobutyric acid (BABA), and glutathione (GSH) [ 16 ]. Additionally, we chose NaCl for its documented effects on Cd accumulation in tobacco [ 21 ] and Arabidopsis [ 22 ], as well as for its practical relevance in agricultural applications.…”

Section: Introductionmentioning

confidence: 99%

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Differential absorption of cadmium and zinc by tobacco plants: Role of apoplastic pathway

Yang,

Ahmed,

Liu

et al. 2024

Biochemistry and Biophysics Reports

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“…Two biochar application rates, that is, 2% (w/w) and 4% (w/w) were employed. The Pb (lead nitrate; Naveed et al, 2020) and Cd (cadmium acetate; Yang et al, 2020) were applied on a w/w basis in the soil. The treatment design was as follows: SC: soil control, SM1: lower heavy metal application rate (32 mg kg −1 for Pb and 1.5 mg kg −1 for Cd), SM2: higher heavy metal application rate (320 mg kg −1 for Pb and 15 mg kg −1 for Cd), T2M1: lower heavy metal with 2% biochar , T4M1: lower heavy metal with 4% biochar, T2M2: higher heavy metal and 2% biochar , and T4M2: higher heavy metal and 4% biochar.…”

Section: Methodsmentioning

confidence: 99%

Biochar amendment reduced the risk associated with metal uptake and improved metabolite content in medicinal herbs

Nigam

Khare

Ahsan

et al. 2021

Physiologia Plantarum

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Contaminations of heavy metals such as lead (Pb) and cadmium (Cd) in medicinal plants (MPs) not only restrict their safe consumption due to health hazards but also lower their productivity. Biochar amendments in the soil are supposed to immobilize the toxic metals, improve the soil quality, and agricultural productivity. However, the impact of biochar on growth attributes, metal accumulation, pharmacologically active compounds of MPs, and health risk is less explored. An experiment was performed on three medicinal plants [Bacopa monnieri (L.), Andrographis paniculata (Burmf.) Nees, and Withania somnifera (L.)] grown in a greenhouse in soil co‐contaminated with Pb and Cd (at two concentrations) without and with biochar amendments (2% and 4% application rates). The fractionation of Pb and Cd, plant growth parameters, stress enzymes, photosynthetic capacity, pharmacologically active compounds, nutrient content, uptake and translocation of metals, antioxidant activities, and metabolite content were examined in the three MPs. The accumulation of Pb and Cd varied from 3.25–228 and 1.29–20.2 mg kg−1, respectively, in the three MPs, while it was reduced to 0.08–18 and 0.03–6.05 mg kg−1upon biochar treatments. Plants grown in Pb and Cd co‐contaminated soil had reduced plant biomass (5%–50% depending on the species) compared to control and a deleterious effect on photosynthetic attributes and protein content. However, biochar amendments significantly improved plant biomass (21%–175%), as well as photosynthesis attributes, chlorophyll, and protein contents. Biochar amendments in Pb and Cd co‐contaminated soil significantly reduced the health hazard quotient (HQ) estimated for the consumption of these medicinal herbs grown on metal‐rich soil. An enhancement in secondary metabolite content and antioxidant properties was also observed upon biochar treatments. These multiple beneficial effects of biochar supplementation in Pb and Cd co‐contaminated soil suggested that a biochar amendment is a sustainable approach for the safe cultivation of MPs.

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Reduced cadmium accumulation in tobacco by sodium chloride priming

Cited by 8 publications

References 41 publications

Health and ecological risk of heavy metals in agricultural soils related to Tungsten mining in Southern Jiangxi Province, China

Health and ecological risk of heavy metals in agricultural soils related to Tungsten mining in Southern Jiangxi Province, China

Differential absorption of cadmium and zinc by tobacco plants: Role of apoplastic pathway

Biochar amendment reduced the risk associated with metal uptake and improved metabolite content in medicinal herbs

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