Effect of rare earth elements on peroxidase activity in tea shoots

Wang, Dongfeng; Wang, Changhong; Wei, Zhao; Qi, Hongtao; Zhao, Genping

doi:10.1002/jsfa.1507

Cited by 10 publications

(3 citation statements)

References 9 publications

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“…For example, rare earth elements (REEs) have been used extensively in China as microelement fertilisers for crop growth and improved yield. 46,47,48 The low mobility of REEs in the environment can lead to bioaccumulation in crops and soil, increasing concern about the ingestion pathway as an exposure route for REEs. 49 There is no established biological role for REEs, but La 3+ can compete with Ca 2+ in biological systems 50 Table 2: Mean STOM+INT phase bioaccessible concentrations (mg kg -1 ), standard deviation and percentage relative standard deviation for uncertified elements.…”

Section: Influence Of Reagents On Performance Datamentioning

confidence: 99%

Bioaccessibility performance data for fifty-seven elements in guidance material BGS 102

Hamilton

Barlow

Gowing

et al. 2015

Microchemical Journal

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BGS 102, a guidance material for bioaccessible arsenic (As) and lead (Pb), was produced during validation of the in vitro Unified Bioaccessibility Method (UBM). This paper reports a compilation of reproducible bioaccessible guidance values for fifty-five additional elements in BGS 102, providing guidance for analysts to broaden the scope of UBM analyses for a wider range of elements based on data collected over an average of 60 separate analytical batches per element. Data are presented in categories for both gastric (STOM) and gastrointestinal (STOM+INT) extraction phases, where reproducibility, measured as relative standard deviation (RSD) was; ≤10% RSD for 27 elements (Mg,

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Section: Influence Of Reagents On Performance Datamentioning

confidence: 99%

Bioaccessibility performance data for fifty-seven elements in guidance material BGS 102

Hamilton

Barlow

Gowing

et al. 2015

Microchemical Journal

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“…Studies have found that low REEs concentrations can stimulate land plant growth, accelerate their uptake of nutrients, and improve their photosynthesis and tolerance (Xie et al 2002;Wang et al 2003;Hu et al 2004;Ge et al 2006). Since REEs have substantial effects on the growth of land plants, their impacts on aquatic ecology become a concern (Sun et al 1997;Yang et al 1999 phytoplankton, which is the primary producer, to REEs has attracted much more attention than other aquatic cultures.…”

Section: Introductionmentioning

confidence: 97%

Effects of lanthanum(III) and EDTA on the growth and competition of Microcystis aeruginosa and Scenedesmus quadricauda

et al. 2009

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Rare earth elements (REEs) are widely used to increase crop production in China. However, little attention has been paid to their impacts on aquatic ecology. Batch cultivation was used here to study the effects of lanthanum (La) and EDTA on the growth and competition of the cyanobacterium Microcystis aeruginosa and the green alga Scenedesmus quadricauda. When EDTA was present at a very low concentration (0.269 mmol L À1 ), low lanthanum concentrations (p7.2 mmol L À1 ) had little stimulative effect on the growth of M. aeruginosa and S. quadricauda, whereas a high lanthanum concentration (72 mmol L À1 ) had significant inhibitory effect on both of them. The results of cultivation experiments suggested that the inhibitory effect on M. aeruginosa was higher than that on S. quadricauda and S. quadricauda could become dominant in mixed cultures. When lanthanum was not added to the culture medium, high EDTA concentrations (413.4 mmol L À1 ) had a great inhibitory effect on the growth of M. aeruginosa but little effect on the growth of S. quadricauda, which could become dominant in the mixed cultures.Lanthanum and EDTA had complex effects on the growth and competition of M. aeruginosa and S. quadricauda. EDTA did not change the stimulation of low lanthanum concentrations on both, but at intermediated concentrations (2.69-13.4 mmol L À1 ) it could greatly alleviate lanthanum inhibition on M. aeruginosa; thus, M. aeruginosa would dominate S. quadricauda in these mixed cultures. Lanthanum at low concentration (7.2 mmol L À1 ) could also alleviate the inhibition of high EDTA on M. aeruginosa, but did not alter the outcome of the competition.

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“…Cho đến nay, phân bón chứa đất hiếm đã được áp dụng trên cây trồng nhằm làm tăng sản lượng, chất lượng của trên 50 loại cây trồng bao gồm cây lương thực, cây lấy đường, cây công nghiệp, cây ăn trái và các loại rau. Nhiều nghiên cứu về phân bón đất hiếm cũng đã được thực hiện nhằm khẳng định vai trò của đất hiếm đối với sự tăng trưởng và kích thích sự tổng hợp diệp lục, thúc đẩy sự phát triển của cây trồng [8][9][10][11][12]. Sự tích lũy đất hiếm phụ thuộc vào liều lượng đất hiếm sử dụng [13][14][15].…”

Section: Mở đầU *unclassified

Synthesis of Nd - Glutamate complex for Paris polyphylla Smith stimulant application

The

2023

NST

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Nd(HGlu)3.3H2O complexes were successfully synthesized using Nd(NO3)3 and acid glutamic precursors. Effects of acid glutamic concentration, preparation times and Nd/acid glutamic ratios on the reaction performance and the structure of the complexes were investigated. These fabricated complexes have been characterized by infrared spectroscopy (IR), thermal analysis (TGA) and mass spectrometry (MS). The obtained results showed that Nd[H2Glu]2.3H2O complex improved the growth of Paris polyphylla Smith as compared to the control sample.

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Effect of rare earth elements on peroxidase activity in tea shoots

Cited by 10 publications

References 9 publications

Bioaccessibility performance data for fifty-seven elements in guidance material BGS 102

Bioaccessibility performance data for fifty-seven elements in guidance material BGS 102

Effects of lanthanum(III) and EDTA on the growth and competition of Microcystis aeruginosa and Scenedesmus quadricauda

Synthesis of Nd - Glutamate complex for Paris polyphylla Smith stimulant application

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