Terrestrial selenium distribution in China is potentially linked to monsoonal climate

Blazina, Tim; Sun, Youbin; Voegelin, Andreas; Lenz, Markus; Berg, Michael; Winkel, Lenny H. E.

doi:10.1038/ncomms5717

Cited by 98 publications

(48 citation statements)

References 51 publications

(72 reference statements)

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“…S2) (51). Marine environments are thought to increase soil Se concentrations via wet deposition (10, 13), and atmospheric deposition of Se thus could explain some of the model’s underprediction. However, global spatial data do not exist for Se deposition and thus could not be analyzed.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Selenium deficiency risk predicted to increase under future climate change

Jones

Droz

Greve

et al. 2017

Proc. Natl. Acad. Sci. U.S.A.

298

165

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SignificanceThe trace element selenium is essential for human health and is required in a narrow dietary concentration range. Insufficient selenium intake has been estimated to affect up to 1 billion people worldwide. Dietary selenium availability is controlled by soil–plant interactions, but the mechanisms governing its broad-scale soil distributions are largely unknown. Using data-mining techniques, we modeled recent (1980–1999) distributions and identified climate–soil interactions as main controlling factors. Furthermore, using moderate climate change projections, we predicted future (2080–2099) soil selenium losses from 58% of modeled areas (mean loss = 8.4%). Predicted losses from croplands were even higher, with 66% of croplands predicted to lose 8.7% selenium. These losses could increase the worldwide prevalence of selenium deficiency.

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Section: Resultsmentioning

confidence: 99%

“…Additionally, climate variables, which likely affect soil Se concentrations directly as a source (e.g., deposition; see refs. 8 and 13) or indirectly by affecting soil retention of Se (e.g., sorption), are ignored in small-scale experiments. Therefore, to predict the global distributions, broad-scale analyses of soil Se drivers are essential.…”

mentioning

confidence: 99%

Selenium deficiency risk predicted to increase under future climate change

Jones

Droz

Greve

et al. 2017

Proc. Natl. Acad. Sci. U.S.A.

298

165

View full text Add to dashboard Cite

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“…For example, coastal deposition of Se has been found in Norwegian forest soils, which shows a distinct decrease in Se concentration with increasing distance from the ocean [ 103 ]. Recently, Blazina et al (2014) [ 104 ] used sediment sequences from the Loess Plateau in central China to show that over the last 6.8 million years rainfall likely controlled Se distributions in these sediments. This suggests that precipitation may be an important factor in controlling the broad-scale Se distribution in soils in monsoonal China.…”

Section: Sources and Sinks Of Soil Seleniummentioning

confidence: 99%

Selenium Cycling Across Soil-Plant-Atmosphere Interfaces: A Critical Review

et al. 2015

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Selenium (Se) is an essential element for humans and animals, which occurs ubiquitously in the environment. It is present in trace amounts in both organic and inorganic forms in marine and freshwater systems, soils, biomass and in the atmosphere. Low Se levels in certain terrestrial environments have resulted in Se deficiency in humans, while elevated Se levels in waters and soils can be toxic and result in the death of aquatic wildlife and other animals. Human dietary Se intake is largely governed by Se concentrations in plants, which are controlled by root uptake of Se as a function of soil Se concentrations, speciation and bioavailability. In addition, plants and microorganisms can biomethylate Se, which can result in a loss of Se to the atmosphere. The mobilization of Se across soil-plant-atmosphere interfaces is thus of crucial importance for human Se status. This review gives an overview of current knowledge on Se cycling with a specific focus on soil-plant-atmosphere interfaces. Sources, speciation and mobility of Se in soils and plants will be discussed as well as Se hyperaccumulation by plants, biofortification and biomethylation. Future research on Se cycling in the environment is essential to minimize the adverse health effects associated with unsafe environmental Se levels.

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“…The World Health Organization (WHO) recommends a daily intake of 50–200 μg Se for optimum human health [ 5 ]. However, according to surveys conducted by Golubkina and Blazina [ 6 , 7 ], Se intake is low in various countries, and about 0.5–1 billion people globally may have insufficient Se intake [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

QTL mapping of selenium content using a RIL population in wheat

Wang

Liu

et al. 2017

PLoS ONE

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Selenium (Se) is an essential trace element that plays various roles in human health. Understanding the genetic control of Se content and quantitative trait loci (QTL) mapping provide a basis for Se biofortification of wheat to enhance grain Se content. In the present study, a set of recombinant inbred lines (RILs) derived from two Chinese winter wheat varieties (Tainong18 and Linmai6) was used to detect QTLs for Se content in hydroponic and field trials. In total, 16 QTLs for six Se content-related traits were detected on eight chromosomes, 1B, 2B, 4B, 5A, 5B, 5D, 6A, and 7D. Of these, seven QTLs were detected at the seedling stage and nine at the adult stage. The contribution of each QTL to Se content ranged from 7.37% to 20.22%. QSsece-7D.2, located between marker loci D-3033829 and D-1668160, had the highest contribution (20.22%). This study helps in understanding the genetic basis for Se contents and will provide a basis for gene mapping of Se content in wheat.

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Terrestrial selenium distribution in China is potentially linked to monsoonal climate

Cited by 98 publications

References 51 publications

Selenium deficiency risk predicted to increase under future climate change

Selenium deficiency risk predicted to increase under future climate change

Selenium Cycling Across Soil-Plant-Atmosphere Interfaces: A Critical Review

QTL mapping of selenium content using a RIL population in wheat

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