Understanding boosting selenium accumulation in Wheat (Triticum aestivum L.) following foliar selenium application at different stages, forms, and doses

Wang, Min; F, Ali; Wang, Mengke; Dinh, Quang Toan; Zhou, Fei; Bañuelos, Gary S.; Liang, Dongli

doi:10.1007/s11356-019-06914-0

Cited by 66 publications

(64 citation statements)

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“…All three Se species, selenate, selenite, and Astragalus bisulcatus plant extract (MeSeCys), accumulated 15 to 40 mg Se kg −1 DW in the seeds of both common and tartary buckwheats, and the Se localized in the seed embryo was in the forms of SeMet, MeSeCys, and γ‐Glu‐MeSeCys (Jiang, El Mehdawi, et al., 2018). It is proposed that selenate is the most effective Se form for biofortification in soil, as selenite is rapidly adsorbed on clay colloids, rendering it poorly available to plants in many soils, and selenate is usually also more effective than selenite in foliar application (Lyons, 2018; Wang et al., 2020). Foliar application was reported to be better than fertigation in increasing wheat grain Se concentrations (Zhang et al., 2018).…”

Section: Selenium In Cereals: Content and Biofortificationmentioning

confidence: 99%

Selenium in cereals: Insight into species of the element from total amount

Xie

Sun

et al. 2021

Comp Rev Food Sci Food Safe

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Selenium (Se) is a trace mineral micronutrient essential for human health. The diet is the main source of Se intake. Se‐deficiency is associated with many diseases, and up to 1 billion people suffer from Se‐deficiency worldwide. Cereals are considered a good choice for Se intake due to their daily consumption as staple foods. Much attention has been paid to the contents of Se in cereals and other foods. Se‐enriched cereals are produced by biofortification. Notably, the gap between the nutritional and toxic levels of Se is fairly narrow. The chemical structures of Se compounds, rather than their total contents, contribute to the bioavailability, bioactivity, and toxicity of Se. Organic Se species show better bioavailability, higher nutritional value, and less toxicity than inorganic species. In this paper, we reviewed the total content of Se in cereals, Se speciation methods, and the biological effects of Se species on human health. Selenomethionine (SeMet) is generally the most prevalent and important Se species in cereal grains. In conclusion, Se species should be considered in addition to the total Se content when evaluating the nutritional and toxic values of foods such as cereals.

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Section: Selenium In Cereals: Content and Biofortificationmentioning

confidence: 99%

Selenium in cereals: Insight into species of the element from total amount

Xie

Sun

et al. 2021

Comp Rev Food Sci Food Safe

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“…Notable release of Se was measured in drinks including water, coffee, and green tea sweetened with Se-fortified Stevia leaves [ 51 ], suggesting that Se-enriched Stevia -based sweetener can contribute to nutritional Se supplementation. It has to be noted that Se speciation analysis was not included in this work, but literature data suggest that, in selenate-sprayed plants, beyond inorganic Se forms of metabolized organic species such as selenomethionine, selenocysteine, or Se-methylselenocysteine may be present [ 63 , 64 , 65 , 66 , 67 , 68 ].…”

Section: Resultsmentioning

confidence: 99%

The Effect of Foliar Selenium (Se) Treatment on Growth, Photosynthesis, and Oxidative-Nitrosative Signalling of Stevia rebaudiana Leaves

et al. 2021

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Selenium (Se) enrichment of Stevia rebaudiana Bertoni can serve a dual purpose, on the one hand to increase plant biomass and stress tolerance and on the other hand to produce Se fortified plant-based food. Foliar Se spraying (0, 6, 8, 10 mg/L selenate, 14 days) of Stevia plantlets resulted in slightly decreased stevioside and rebaudioside A concentrations, and it also caused significant increment in stem elongation, leaf number, and Se content, suggesting that foliar Se supplementation can be used as a biofortifying approach. Furthermore, Se slightly limited photosynthetic CO2 assimilation (AN, gsw, Ci/Ca), but exerted no significant effect on chlorophyll, carotenoid contents and on parameters associated with photosystem II (PSII) activity (FV/FM, F0, Y(NO)), indicating that Se causes no photodamage in PSII. Further results indicate that Se is able to activate PSI-cyclic electron flow independent protection mechanisms of the photosynthetic apparatus of Stevia plants. The applied Se activated superoxide dismutase (SOD) isoenzymes (MnSOD1, FeSOD1, FeSOD2, Cu/ZnSOD1, Cu/ZnSOD2) and down-regulated NADPH oxidase suggesting the Se-induced limitation of superoxide anion levels and consequent oxidative signalling in Stevia leaves. Additionally, the decrease in S-nitrosoglutathione reductase protein abundance and the intensification of protein tyrosine nitration indicate Se-triggered nitrosative signalling. Collectively, these results suggest that Se supplementation alters Stevia shoot morphology without significantly affecting biomass yield and photosynthesis, but increasing Se content and performing antioxidant effects, which indicates that foliar application of Se may be a promising method in Stevia cultivation.

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“…No significant difference was observed among the average grain Se contents of wheat in Asia 8,[15][16][17][18][19][20][22][23][24][25][27][28][29]31,[33][34][35][36][37][38][39][40]43 (63.36 μg•kg -1 ), Africa 20,22,32,50 (64.15 μg•kg -1 ), and Europe 20,22,26,29,30,41,42,44,46,48,50 (85.98 μg•kg -1 ), and these values which were all lower than the normal level (100 μg•kg -1 39 ). A significant difference was observed among the grain Se content in South America 22,50 , North America 20,22,47,49,50 , and Oceania 22,…”

Section: Grain Se Content Of Wheat In Different Continents and Countriesmentioning

confidence: 95%

“…However, significant differences were observed in the effect of different Se fertilizer treatments. Grain Se content with soil Se fertilization treatment ranged from 190.00 μg•kg -1 to 6,090.00 μg•kg -1 (528.87 μg•kg -1 in average) 19,28,29,38,42,48,53 , that with foliar Se fertilization treatment ranged from 58.00 μg•kg -1 to 8,270.00 μg•kg -1 (729.69 μg•kg -1 in average) 8,13,15,16,[18][19][20][23][24][25][26][27][28][29][30][31][35][36][37][38]51,53 , and that with seed Se soaking treatment ranged from 64.80 μg•kg -1 to 300.00 μg•kg -1 (128.67 μg•kg -1 in average) 39,54 .…”

Section: Effects Of Different Se Fertilization On Grain Se Content In Wheatmentioning

confidence: 99%

“…The copyright holder for this preprint this version posted July 19, 2021. ; https://doi.org/10.1101/2021.07.17.452805 doi: bioRxiv preprint 8 (729.69 μg•kg -1 in average) 8,13,15,16,[18][19][20][23][24][25][26][27][28][29][30][31][35][36][37][38]51,53 , and that with seed Se soaking treatment ranged from 64.80 μg•kg -1 to 300.00 μg•kg -1 (128.67 μg•kg -1 in average) 39,54 .…”

Section: Effects Of Different Se Fertilization On Grain Se Content In Wheatmentioning

confidence: 99%

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Selenium in wheat from farming to food

Wang¹,

Li³

et al. 2021

Preprint

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Selenium (Se) plays an important role in human health. Approximately 80% of the world's population does not consume the recommended Se levels. Wheat is an important staple food and Se source for most people in the world. This article summarizes literatures about Se from 1936 to 2020 to investigate Se in wheat farming soil, wheat, and its derived foods. Selenium fortification and the recommended Se level in wheat were also discussed. Results showed that Se contents in wheat farming soil, grain, and its derived foods were 3.8–552 (mean, 220.99), 0–8,270 (mean, 347.30), and 15–2,372 (mean, 211.86) μg ·kg-1, respectively. Selenium content could be increased by leaf Se fertilizer application, and the contents in grain, flour, and its derived foods could be improved from 93.94 to 1,181.92, 73.06 to 1,007.75, and 86.90 to 587.61 μg ·kg-1 in average. Both Se content in farming soil and grain, foliar Se fertilizer concentration rate and grain Se increased rate showed significant linear relationship. The recommended Se fortification level of wheat in different countries was calculated in China, India, and Spain, with recorded values of 18.53–23.96, 2.65–3.37, and 3.93–9.88 g ·hm-2, respectively. Thus, suitable Se fortification in farming effectively improved Se content in wheat grain and its derived foods. Appropriate milling processing and food type are also important factors to be considered to meet people's Se requirement by wheat.

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Understanding boosting selenium accumulation in Wheat (Triticum aestivum L.) following foliar selenium application at different stages, forms, and doses

Cited by 66 publications

References 50 publications

Selenium in cereals: Insight into species of the element from total amount

Selenium in cereals: Insight into species of the element from total amount

The Effect of Foliar Selenium (Se) Treatment on Growth, Photosynthesis, and Oxidative-Nitrosative Signalling of Stevia rebaudiana Leaves

Selenium in wheat from farming to food

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