Bioaccumulation of lanthanum and cerium and their effects on the growth of wheat (Triticum aestivum L.) seedlings

Hu, Xin; Ding, Zhen; Chen, Yijun; Wang, Xiaorong; Dai, Lemei

doi:10.1016/s0045-6535(02)00109-1

Cited by 120 publications

(73 citation statements)

References 13 publications

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“…their higher efficiency in restricting Ce translocation from roots to shoots and a more efficient antioxidant mechanism compared to eudicots Wang et al, 2012). In any case, both eudicots and monocots tend to exclude Ce from shoots (Diatloff et al, 1995b(Diatloff et al, , 2008Hu et al, 2002aHu et al, , 2002bLiu et al, 2012;Wang et al, 2012), in agreement with our results (Fig. 3), which demonstrate that rapeseed has a typical shoot excluder strategy (Baker, 1981).…”

Section: Discussionsupporting

confidence: 91%

“…This concentration is similar to the lowest inhibiting concentration for root elongation in mungbean cultivated in hydroponics (1 μM, Diatloff et al, 1995a). However, these concentrations are lower than those reported for maize (4 μM, Diatloff et al, 1995a) and common wheat (14.3 μM, Hu et al, 2002aHu et al, , 2002b. Interestingly, Liu et al (2012) reported an extremely high concentration (100 μM) of Ce in agar, which did not negatively affect the growth of rice, while Wang et al (2012) reported a strong growth inhibition of Arabidopsis thaliana at 50 μM Ce in agar.…”

Section: Discussionsupporting

confidence: 74%

“…However, no beneficial effects were observed for shoot and total dry biomass, and Ce inhibited root elongation at concentrations higher than 1.31 μM (Diatloff et al, 1995a). Hu et al (2002aHu et al ( , 2002b observed no beneficial effects of Ce on growth of common wheat (Triticum aestivum) at 3.6 μM in nutrient solution, while only harmful effects such as decreased root growth and nutrient unbalance were noted at concentrations ≥7.1 μM. Similarly, Wang et al (2007) observed that Ce induced oxidative stress in Hydrilla verticillata already at 10 μM Ce in the nutrient solution.…”

Section: Introductionmentioning

confidence: 96%

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Cerium negatively impacts the nutritional status in rapeseed

Poščić

Marchiol

2017

Science of The Total Environment

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 74%

Section: Introductionmentioning

confidence: 96%

See 1 more Smart Citation

Cerium negatively impacts the nutritional status in rapeseed

Poščić

Marchiol

2017

Science of The Total Environment

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“…The metal can be hazardous when dispersed in the environment so its control and monitoring are important. Cerium has large number of applications that include fabrication of aluminium and steel alloys (Xu, 2000), chemical oxidising agents (Liu and Huang, 2004), electrochemical destruction of aniline (Chung and Park, 2000), increasing crop yields (Hu et al, 2002), glass manufacture, catalysts, self-cleaning ovens, chemical analysis, as carbonarc lighting in the film industry and in the nuclear industry. Rare earth elements such as cerium can promote germination and enhance the resistance of crops representing a non-hormonal option to promote the floral initiation and reproductive growth of some plants (He and Loh, 2000).…”

Section: Introductionmentioning

confidence: 99%

The use of electrolyte redox potential to monitor the Ce(IV)/Ce(III) couple

Trinidad

León

Walsh

2008

Journal of Environmental Management

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Mathematical modelling of the oxidation reduction redox potential (ORP) of an electrolyte has been carried out for a batch system comprising an electrochemical reactor and an electrolyte circuit containing a redox couple. The ORP can be useful to monitor the environmental impact of chemical species in solution that represent a risk to the environment. Considerations of four fundamental equations, namely, the Nernst equation, a mass balance, Faraday's laws of electrolysis and a first order kinetic equation, leads to an expression for the electrolyte redox potential as a function of the batch time, the electrical charge and the redox concentration. Such an expression facilitates graphical plots which can be used to estimate kinetic parameters, current efficiency and the relative redox concentration. The Ce(IV)/Ce(III) system has been chosen as a model reaction for electrolyte redox potential measurement in a batch recycle system consisting of a pumped flow through a divided FM01-LC parallel-plate electrochemical reactor (64 cm 2 projected electrode area) and a well mixed tank (3600 cm 3 ). The differences between experimental and model predictions are discussed. r

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“…Many efforts have been made to understand the distribution and accumulation of REEs in the environment (Ichihashi et al, 1992;Tu et al, 1994;Wyttenbach et al, 1998). Although the total concentration of REEs in soils affords valuable information about overall pollution levels, it is insufficient to estimate the bioavailability of REEs, which depends on the chemical speciation of REEs in soils and plant species Hu et al, 2002). Therefore, it is important to obtain information of elemental speciation in soils.…”

Section: Introductionmentioning

confidence: 99%

Application of microwave extraction for the evaluation of bioavailability of rare earth elements in soils

Zhang

Shan

et al. 2003

Chemosphere

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A single microwave extraction procedure was conducted to investigate the bioavailability of rare earth elements (REEs) by using different extractants of 0.05 M EDTA, 0.10 M CH 3 COOH, 0.10 M HCl, and 0.05 M CaCl 2 . The experimental conditions of heating time and microwave power were optimized. A microwave power of 60% and extraction time of 30 min were adopted. Compared to the conventional single extraction schemes reported in the literature, the recommended technique shortened the operational time, simplified the experimental task, improved the precision, and obtained consistent results with those obtained by using the conventional methods. In addition, the suggested microwave extraction method has been successfully used to evaluate the bioavailability of REEs in soils. Soil samples collected from 15 sites in China were extracted by four different extractants with microwave ancillary. Extractable REEs from soils were well correlated with REEs contents in shoots of wheat (Troticum aestivum L.) under the greenhouse conditions. The correlation coefficients were 0. 6514-0.8996, 0.4522-0.7783, 0.6506-0.8671, 0.4869-0.7014 between the extractable REEs in soils and their concentrations in wheat shoots for the extractants of CaCl 2 , EDTA, CH 3 COOH and HCl, respectively.

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Bioaccumulation of lanthanum and cerium and their effects on the growth of wheat (Triticum aestivum L.) seedlings

Cited by 120 publications

References 13 publications

Cerium negatively impacts the nutritional status in rapeseed

Cerium negatively impacts the nutritional status in rapeseed

The use of electrolyte redox potential to monitor the Ce(IV)/Ce(III) couple

Application of microwave extraction for the evaluation of bioavailability of rare earth elements in soils

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