The interaction between selenium and cadmium in the soil-rice-human continuum in an area with high geological background of selenium and cadmium

Yang, Ruyi; He, Yuhuan; Luo, Linfeng; Zhu, Meng; Zan, Shuting; Guo, Fuyu; Wang, Bo; Yang, Bei-Bei

doi:10.1016/j.ecoenv.2021.112516

Cited by 27 publications

(3 citation statements)

References 55 publications

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“…The interaction of selenium with heavy metals is well known. Selenium compounds are believed to be detoxifying agents, playing an antagonistic role towards mercury, methylmercury [15][16][17][18], cadmium [19], silver [20], lead [21], and many other elements [14].…”

Section: Introductionmentioning

confidence: 99%

Biosynthesis of Selenium Nanoparticles (via Bacillus subtilis BSN313), and Their Isolation, Characterization, and Bioactivities

et al. 2021

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Among the trace elements, selenium (Se) has great demand as a health supplement. Compared to its other forms, selenium nanoparticles have minor toxicity, superior reactivity, and excellent bioavailability. The present study was conducted to produce selenium nanoparticles (SeNPs) via a biosynthetic approach using probiotic Bacillus subtilis BSN313 in an economical and easy manner. The BSN313 exhibited a gradual increase in Se reduction and production of SeNPs up to 5–200 µg/mL of its environmental Se. However, the capability was decreased beyond that concentration. The capacity for extracellular SeNP production was evidenced by the emergence of red color, then confirmed by a microscopic approach. Produced SeNPs were purified, freeze-dried, and subsequently characterized systematically using UV–Vis spectroscopy, FTIR, Zetasizer, SEM–EDS, and TEM techniques. SEM–EDS analysis proved the presence of selenium as the foremost constituent of SeNPs. With an average particle size of 530 nm, SeNPs were shown to have a −26.9 (mV) zeta potential and −2.11 µm cm/Vs electrophoretic mobility in water. SeNPs produced during both the 24 and 48 h incubation periods showed good antioxidant activity in terms of DPPH and ABST scavenging action at a concentration of 150 µg/mL with no significant differences (p > 0.05). Moreover, 200 µg/mL of SeNPs showed antibacterial reactivity against Escherichia coli ATCC 8739, Staphylococcus aureus ATCC 9027, and Pseudomonas aeruginosa ATCC 25923. In the future, this work will be helpful to produce biogenic SeNPs using probiotic Bacillus subtilis BSN313 as biofactories, with the potential for safe use in biomedical and nutritional applications.

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Section: Introductionmentioning

confidence: 99%

Biosynthesis of Selenium Nanoparticles (via Bacillus subtilis BSN313), and Their Isolation, Characterization, and Bioactivities

et al. 2021

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“…Notably, the scores of most soil indicators in the region are above 85 points, and that of a small part of the southern region is less than 85 points, this is because the strata here belongs to the Cambrian Lower Uni ed Hetang Formation, whose black shale is not only rich in Se, but is also accompanied by the presence of Cd, and the Cd in the soil is positively correlated with the bioaccessible concentration of Cd in rice (Yang et al, 2021). Heavy metals in soil can also be a signi cant source of heavy metals in tea (Tao et al, 2021).…”

Section: Soil Quality Linked To Healthmentioning

confidence: 89%

Linking Health to Geology-A New Assessment and Zoning Model Based on the Frame of Medical Geology

Li¹,

Huang³

et al. 2022

SSRN Journal

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“…Owing to the exposure of coal-bearing strata in the Lower Cambrian Hetang Formation [23,32], the topsoil of tea plantations in Shitai County is rich in selenium, which is approximately 11 times that of the background selenium value of surface soil in Anhui Province, China (0.23 mg kg −1 ). The ASeR in the soil of the same region was previously reported to range from 2.47% to 6.05% [33], which was consistent with the present results.…”

Section: Availability and Factors Influencing Soil Selenium In Tea Pl...mentioning

confidence: 99%

Uptake and Transport of Selenium in a Soil–Tea Plant–Tea Infusion System: A Study of Typical Tea Plantations in a Selenium-Rich Area of China

Wu,

Zhang,

et al. 2024

Forests

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Selenium is an important indicator for the evaluation of tea quality. However, the relationship between selenium uptake by tea plants (Camellia sinensis) and soil properties, as well as selenium transport and distribution in a tea plantation soil–tea plant–tea infusion production system, remain unclear. In this study, 12 tea plantations situated in a typical selenium-rich area of China were selected, and the characteristics and crucial factors influencing the uptake and transport of selenium were analyzed using a plantation soil–tea plant–tea infusion production system. The soil total selenium content ranged from 1.12 to 6.67 mg kg−1, with an average of 2.57 mg kg−1. The average available selenium content was 53.56 µg kg−1, and the activation rate of soil selenium was 2.27%. Soil-available selenium was significantly positively correlated with total selenium, available potassium, and soil organic matter contents, and was significantly negatively correlated with soil pH. The selenium content in old leaves ranged from 0.29 to 2.73 mg kg−1, which met the standard for selenium-rich tea, whereas only 33% of young leaves met this standard. The selenium enrichment factor was highest in the fibrous root and lowest in the young leaves. The average selenium transport factors from fibrous roots to main roots, from main roots to main stems, from main stems to lateral stems, from lateral stems to young leaves, and from lateral stems to old leaves were 0.53, 0.92, 0.67, 0.97, and 2.30, respectively. The selenium concentration of tea infusion ranged from 1.88 to 12.49 μg L−1, and the average selenium dissolution rate was 22.62% after one brewing. This study identified critical factors that influence soil-selenium availability. The selenium content in tea plant organs is indicated to be strongly associated with the selenium content in the main roots.

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The interaction between selenium and cadmium in the soil-rice-human continuum in an area with high geological background of selenium and cadmium

Cited by 27 publications

References 55 publications

Biosynthesis of Selenium Nanoparticles (via Bacillus subtilis BSN313), and Their Isolation, Characterization, and Bioactivities

Biosynthesis of Selenium Nanoparticles (via Bacillus subtilis BSN313), and Their Isolation, Characterization, and Bioactivities

Linking Health to Geology-A New Assessment and Zoning Model Based on the Frame of Medical Geology

Uptake and Transport of Selenium in a Soil–Tea Plant–Tea Infusion System: A Study of Typical Tea Plantations in a Selenium-Rich Area of China

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