Selenium Biofortification Enhanced Grain Yield and Alleviated the Risk of Arsenic and Cadmium Toxicity in Rice for Human Consumption

Paniz, Fernanda Pollo; Pedron, Tatiana; Procópio, Vitória Aparecida; Lange, Camila Neves; Freire, Bruna Moreira; Batista, Bruno Lemos

doi:10.3390/toxics11040362

Cited by 7 publications

(1 citation statement)

References 60 publications

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“…By antagonizing the toxic effects of As, Se treatments have shown a mitigation effect on plant height, leaf dry weight, and grain yield [13]. Some exposure assessments revealed that Se biofortification could alleviate the As accumulation in rice [14] and significantly mitigate the harmful effect of As on the reduced yield of rice grain [15]. However, a study found that Se fertilizer treatment increased Se concentrations greatly but had no obvious effects on the concentrations of Cd and As in brown and milled rice [16].…”

Section: Introductionmentioning

confidence: 99%

Arsenic Contents, Speciation and Toxicity in Germinated Rice Alleviated by Selenium

Zheng

Hong

Zhang

et al. 2023

Foods

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Rice can accumulate more organic and inorganic arsenic (iAs) than other crop plants. In this study, the localization of As in rice grains was investigated using High Performance Liquid Chromatography-Inductively Coupled Plasma Mass Spectrometry (HPLC-ICP-MS) based on 26 rice varieties collected from two provinces. In all the samples, the total As contents in polished rice were 0.03–0.37 mg/kg, with average values of 0.28 and 0.21 mg/kg for two sample sets. The results of the determination of arsenic speciation in different components of rice grain showed that in the polished and brown rice the mean value of arsenite (As(III)) was nearly twice than that of arsenate (As(V)). The regional difference was observed in both total As contents and As speciation. The reason may be that As(III) is more mobile than As(V) in a dissociated form and because of soil properties, rice varieties, and the growing environment. The proportion of iAs and the total As in rice bran was higher than that in polished rice, and this is because As tends accumulate between the husk and the endosperm. In our study, selenium could alleviate the risk of arsenic toxicity at the primary stage of rice growth. Co-exposure to As and Se in germinated rice indicated that the reduction in As accumulation in polished rice reached 73.8%, 76.8%, and 78.3% for total As, As(III), and As(V) when compared with rice treated with As alone. The addition of Se (0.3 mg/kg) along with As significantly reduced the As amount in different parts of germinated rice. Our results indicated that Se biofortification could alleviate the As accumulation and toxicity in rice crops.

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Section: Introductionmentioning

confidence: 99%

Arsenic Contents, Speciation and Toxicity in Germinated Rice Alleviated by Selenium

Zheng

Hong

Zhang

et al. 2023

Foods

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Comprehensive evaluation of factors influencing selenium fertilization biofortification

Huang,

Bañuelos,

Zhao

et al. 2024

J Sci Food Agric

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BackgroundDietary selenium (Se) deficiency, stemming from low Se concentrations in agricultural products, threatens human health. While Se‐containing fertilizers can enhance the Se content in crops, the key factors governing Se biofortification with Se fertilization remain unclear.ResultsThis study constructed a global meta‐analysis dataset based on field experiments comprising 364 entries on Se content in agricultural products and 271 entries on their yield. Random forest models and mixed effects meta‐analyses revealed that plant types (i.e., cereals, vegetables, legumes, and forages) primarily influenced Se biofortification, with Se fertilization rates being the next significant factor. The random forest model, which included variables like plant types, Se fertilization rates, methods and types of Se application, initial soil conditions (including Se content, organic carbon content, and pH), soil types, mean annual precipitation, and temperature, explained 82.14% of the variation in Se content and 48.42% of the yield variation in agricultural products. For the same agricultural products, the increase in Se content decreased with higher rates of Se fertilization. The increase in Se content in their edible parts will be negligible for cereals, forages, legumes, and vegetable crops, when Se fertilization rates were 164, 103, 144, and 147 g Se ha−1, respectively. Conversely, while low Se fertilization rates enhanced yields, high rates led to a yield reduction, particularly in cereals.ConclusionOur findings highlight the need for balanced and precise Se fertilization strategies to optimize Se biofortification benefits and minimize the risk of yield reduction.This article is protected by copyright. All rights reserved.

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Simultaneously inhibit cadmium and arsenic uptake in rice (Oryza sativa L.) by Selenium enhanced iron plaque: Performance and mechanism

Huang,

Zou,

Dong

et al. 2024

Chemosphere

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Selenium Biofortification Enhanced Grain Yield and Alleviated the Risk of Arsenic and Cadmium Toxicity in Rice for Human Consumption

Cited by 7 publications

References 60 publications

Arsenic Contents, Speciation and Toxicity in Germinated Rice Alleviated by Selenium

Arsenic Contents, Speciation and Toxicity in Germinated Rice Alleviated by Selenium

Comprehensive evaluation of factors influencing selenium fertilization biofortification

Simultaneously inhibit cadmium and arsenic uptake in rice (Oryza sativa L.) by Selenium enhanced iron plaque: Performance and mechanism

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