Effect of organic amendments on uptake of selenium and biochemical grain composition of wheat and rape grown on seleniferous soils in northwestern India

Sharma, Sucheta; Bansal, Ashish; Dogra, Ritu; Dhillon, S. K.; Dhillon, K. S.

doi:10.1002/jpln.200900265

Cited by 31 publications

(8 citation statements)

References 45 publications

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“…Additionally, the method of Se biofortification with inorganic fertilizer can be replaced by approaches that are more friendly to nematodes, like organic Se fertilizers (Se-rich straw and animal manures) (Sharma et al, 2011 ; Bhatia et al, 2014 ). Organic fertilizers have been shown to promote soil nematode abundance in studies conducted in grassland and tillage fields (Benkovic-Lacic et al, 2013 ; Ikoyi et al, 2020 ).…”

Section: Discussionmentioning

confidence: 99%

Selenium Effect Threshold for Soil Nematodes Under Rice Biofortification

et al. 2022

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Crop biofortification with inorganic selenium (Se) fertilizer is a feasible strategy to improve the health of residents in Se-deficient areas. For eco-friendly crop Se biofortification, a comprehensive understanding of the effects of Se on crop and soil nematodes is vital. In this study, a rice pot experiment was carried out to test how selenite supply (untreated control (0), 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 100, or 200 mg Se kg−1) in soil affected rice growth, rice Se accumulation, and soil nematode abundance and composition. The results showed that selenite supply (5–200 mg kg−1) generally increased the number of rice tillers, rice yield, and Se concentrations in rice grains. In soil under 10 mg kg−1 Se treatment, the genus composition of nematodes changed significantly compared with that in the control soil. With increased Se level (> 10 mg kg−1), soil nematode abundance decreased significantly. Correlation analysis also demonstrated the positive relationships between soil Se concentrations (total Se and bioavailable Se) with rice plant parameters (number of rice tillers, rice yield, and grain Se concentration) and negative relationships between soil Se concentrations (total Se and bioavailable Se) with soil nematode indexes (nematode abundance and relative abundance of Tobrilus). This study provides insight into balancing Se biofortification of rice and soil nematode community protection and suggests the effective concentrations for total Se (1.45 mg kg−1) and bioavailable Se (0.21 mg kg−1) to soil nematode abundances at 20% level (EC20) as soil Se thresholds. At Se concentrations below these thresholds, rice plant growth and Se accumulation in the grain will still be promoted, but the disturbance of the soil nematodes would be negligible.

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Section: Discussionmentioning

confidence: 99%

Selenium Effect Threshold for Soil Nematodes Under Rice Biofortification

et al. 2022

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“…Wheat ( Triticum aestivum, var PBW 621) used as a test crop was sown in soil collected from Punjab Agricultural University Research Farm, Ludhiana located between 30° 55′ N and 75° 85′ E in north‐western India. The physical and chemical characteristics of the experimental soil were determined by already described methods: sandy loam in texture, pH 7.5, electrical conductivity 0.28 ds m −1 , calcium carbonate 2.13%, organic carbon 0.6%, total Se 0.35 mg kg −1 and water soluble Se 0.016 mg kg −1 . A sample (7 kg) of experimental soil was weighed, treated with different levels and sources of Se and placed in a series of pots lined with polythene sheeting.…”

Section: Methodsmentioning

confidence: 99%

Influence of selenite and selenate on growth, leaf physiology and antioxidant defense system in wheat (Triticum aestivum L.)

Kaur

Sharma

2018

J Sci Food Agric

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“…For example, organic matter has been used to reduce Se toxicity in soils over-rich in Se [ 164 , 165 ]. Applying Se-loaded animal manures to the soil can result in higher Se concentrations in crops [ 166 , 167 ]. The organic biofortification of Se has become more widespread globally as Se-enhanced waste products have been recognized as a useful resource to improve the Se concentrations of agricultural soil and, indirectly, improve the nutritional status and health of humans [ 168 ].…”

Section: Biofortification—a Sustainable Agricultural Strategy For mentioning

confidence: 99%

Selenium Biofortification: Roles, Mechanisms, Responses and Prospects

et al. 2021

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The trace element selenium (Se) is a crucial element for many living organisms, including soil microorganisms, plants and animals, including humans. Generally, in Nature Se is taken up in the living cells of microorganisms, plants, animals and humans in several inorganic forms such as selenate, selenite, elemental Se and selenide. These forms are converted to organic forms by biological process, mostly as the two selenoamino acids selenocysteine (SeCys) and selenomethionine (SeMet). The biological systems of plants, animals and humans can fix these amino acids into Se-containing proteins by a modest replacement of methionine with SeMet. While the form SeCys is usually present in the active site of enzymes, which is essential for catalytic activity. Within human cells, organic forms of Se are significant for the accurate functioning of the immune and reproductive systems, the thyroid and the brain, and to enzyme activity within cells. Humans ingest Se through plant and animal foods rich in the element. The concentration of Se in foodstuffs depends on the presence of available forms of Se in soils and its uptake and accumulation by plants and herbivorous animals. Therefore, improving the availability of Se to plants is, therefore, a potential pathway to overcoming human Se deficiencies. Among these prospective pathways, the Se-biofortification of plants has already been established as a pioneering approach for producing Se-enriched agricultural products. To achieve this desirable aim of Se-biofortification, molecular breeding and genetic engineering in combination with novel agronomic and edaphic management approaches should be combined. This current review summarizes the roles, responses, prospects and mechanisms of Se in human nutrition. It also elaborates how biofortification is a plausible approach to resolving Se-deficiency in humans and other animals.

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Effect of organic amendments on uptake of selenium and biochemical grain composition of wheat and rape grown on seleniferous soils in northwestern India

Cited by 31 publications

References 45 publications

Selenium Effect Threshold for Soil Nematodes Under Rice Biofortification

Selenium Effect Threshold for Soil Nematodes Under Rice Biofortification

Influence of selenite and selenate on growth, leaf physiology and antioxidant defense system in wheat (Triticum aestivum L.)

Selenium Biofortification: Roles, Mechanisms, Responses and Prospects

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