Strategies for applying selenium for biofortification of rice in tropical soils and their effect on element accumulation and distribution in grains

Lessa, Josimar Henrique de Lima; Raymundo, Jéssica Francisco; Corguinha, Ana Paula Branco; Martins, Fábio Aurélio Dias; Araujo, Anderson Mendes; Santiago, Franklin; Carvalho, Hudson Wallace Pereira de; Guilherme, Luiz Roberto Guimarães; Lopes, Gertrudes Teixeira

doi:10.1016/j.jcs.2020.103125

Cited by 16 publications

(11 citation statements)

References 21 publications

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“…The foliar application of Se proved very effective in attaining the target concentration of 300 µg Se kg −1 wheat grains [22,42,43]. Foliar application of Se has also been a very successful strategy in increasing the Se in rice grains but to a variable extent depending upon genotype [44][45][46]. Reis et al [47] concluded that the agronomic biofortification of rice with Se could help in eliminating Se malnutrition in humans.…”

Section: Introductionmentioning

confidence: 99%

Biofortification of Diverse Basmati Rice Cultivars with Iodine, Selenium, and Zinc by Individual and Cocktail Spray of Micronutrients

Akhtar

Aslam

Ahmad³

et al. 2021

Agronomy

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Given that an effective combined foliar application of iodine (I), selenium (Se), and zinc (Zn) would be farmer friendly, compared to a separate spray of each micronutrient, for the simultaneous biofortification of grain crops, we compared effectiveness of foliar-applied potassium iodate (KIO3, 0.05%), sodium selenate (Na2SeO4, 0.0024%), and zinc sulfate (ZnSO4∙7H2O, 0.5%), separately and in their combination (as cocktail) for the micronutrient biofortification of four Basmati cultivars of rice (Oryza sativa L.). Foliar-applied, each micronutrient or their cocktail did not affect rice grain yield, but grain yield varied significantly among rice cultivars. Irrespective of foliar treatments, the brown rice of cv. Super Basmati and cv. Kisan Basmati had substantially higher concentration of micronutrients than cv. Basmati-515 and cv. Chenab Basmati. With foliar-applied KIO3, alone or in cocktail, the I concentration in brown rice increased from 12 to 186 µg kg−1. The average I concentration in brown rice with foliar-applied KIO3 or cocktail was 126 μg kg−1 in cv. Basmati-515, 160 μg kg−1 in cv. Chenab Basmati, 153 μg kg−1 in cv. Kisan Basmati, and 306 μg kg−1 in cv. Super Basmati. Selenium concentration in brown rice increased from 54 to 760 µg kg−1, with foliar-applied Na2SeO4 individually and in cocktail, respectively. The inherent Zn concentration in rice cultivars ranged between 14 and 19 mg kg−1 and increased by 5–6 mg Zn per kg grains by foliar application of ZnSO4∙7H2O and cocktail. The results also showed the existence of genotypic variation in response to foliar spray of micronutrients and demonstrated that a foliar-applied cocktail of I, Se, and Zn could be an effective strategy for the simultaneous biofortification of rice grains with these micronutrients to address the hidden hunger problem in human populations.

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Section: Introductionmentioning

confidence: 99%

Biofortification of Diverse Basmati Rice Cultivars with Iodine, Selenium, and Zinc by Individual and Cocktail Spray of Micronutrients

Akhtar

Aslam

Ahmad³

et al. 2021

Agronomy

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“…The production of biofortified crops enriched in macro-or micro-nutrients has been applied several years ago such as Ca (Pessoa et al 2021), Cu (Yusefi-Tanha et al 2020a), I (Budke et al 2020(Budke et al , 2021, Fe (Coelho et al 2021;Okwuonu et al 2021), Mg (Kumssa et al 2020), Se (Lessa et al 2020;Hossain et al 2021;Trippe III and Pilon-Smits 2021), Zn (Okwuonu et al 2021 andSilva et al 2021). Using some vitamins (Fitzpatrick and Chapman 2020;Jiang et al 2020;Tiozon et al 2021) and other essential compounds like carotenoids (Watkins andPogson 2020 andZheng et al 2020) and folate (Strobbe and Van Der Straeten 2017;De Lepeleire et al 2018;Viscardi et al 2020) for human health also have been applied in biofortification strategies.…”

Section: Biofortification For Human Healthmentioning

confidence: 99%

Is Nano-Biofortification the Right Approach for Malnutrition in the Era of COVID-19 and Climate change?

et al. 2021

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H UMAN health may depend on the environment and its compartments, which may include climatic factors. These climatic factors and their changes might impact on human health particularly the outbreak of pandemics like COVID-19. The combined stress resulted from climate changes and COVID-19 could be noticed in several countries especially in the developing countries. Malnutrition is considered one of the most important problems in the developing countries in particular under the droughts, flooding, and other climatic events. Malnutrition was aggravated under COVID-19 outbreak in these countries due to the closure of borders between countries, the crisis of global trade, and the global food insecurity. The biofortification process is the sustainable solution to overcome malnutrition, which included very recently using nano-nutrients as called nano-biofortification. The approach of nanobiofortification is a promising tool in producing biofortified edible plants, otherwise this tool still needs more studies to answer the open questions like which nano-nutrients can be used in nano-biofortification? Which recommended doses and crops are considered suitable candidates?

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“…Therefore, the right biofortification process should start with an analysis of the soil and its properties, then move to selection of the right edible plant or crop, which should fit the soil and climatic conditions. For example, soil or foliar agronomic Se-biofortification (up to 80 g ha −1 ) of rice is a promising strategy that could be adopted in tropical soils in Brazil to produce rice grains rich in Se for human consumption (34). In Se or Zn deficient regions, the biofortification of soybean seeds by spiking the soil with deficient elements during the flowering phase may improve the human nutrition value of this crop.…”

Section: Biofortification For Human Healthmentioning

confidence: 99%

“…Supplying necessary nutrients for cultivated plants through fertilization or other approaches is called biofortification, and is a vital process for human health (32). Biofortification has been used with many important food crops like wheat (33), rice (34), maize (35), cassava (36), sweet potato (37), pear (38), strawberry (39), and pulse crops (40). Nutrients that have been used for biofortification include boron (41), copper (42), iron (36), iodine (43), calcium (38), selenium (44,45), and zinc (46).…”

Section: Introductionmentioning

confidence: 99%

Soils, Biofortification, and Human Health Under COVID-19: Challenges and Opportunities

et al. 2021

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Soil is an important source of resources required for human health and well-being. Soil is also a major environmental reservoir of pathogenic organisms. This may include viruses like the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), which through 2020 and 2021 created dramatic catastrophes worldwide as the causative agent of the coronavirus disease of 2019 (COVID-19). So, soil has both positive and negative impacts on human health. One of the major positive impacts is the transfer of nutrients from soil to plants, and from there to humans through their diet. Biofortification is able to enhance the levels of nutrients essential to human health in the crops we consume and represents a sustainable solution to address malnutrition, which in turn may strengthen the human immune system against COVID-19. This nutrient transfer works better when we have healthy soils. Therefore, soils and biofortification have important roles to play in combatting the COVID-19 pandemic. However, several questions still remain, such as what are the expected environmental impacts of COVID-19 on soil? Can SARS-CoV-2 be transmitted through soil, and under what conditions? Which soil processes and properties influence SARS-CoV-2 survival rates and times, as well as transmission? What are the specific links between soil health and COVID-19? What are the projected soil management scenarios in response to COVID-19? Questions such as these deserve more attention as the world seeks to recover from its most recent pandemic.

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Strategies for applying selenium for biofortification of rice in tropical soils and their effect on element accumulation and distribution in grains

Cited by 16 publications

References 21 publications

Biofortification of Diverse Basmati Rice Cultivars with Iodine, Selenium, and Zinc by Individual and Cocktail Spray of Micronutrients

Biofortification of Diverse Basmati Rice Cultivars with Iodine, Selenium, and Zinc by Individual and Cocktail Spray of Micronutrients

Is Nano-Biofortification the Right Approach for Malnutrition in the Era of COVID-19 and Climate change?

Soils, Biofortification, and Human Health Under COVID-19: Challenges and Opportunities

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