Effect of foliar application of selenium on its uptake and speciation in carrot

Kápolna, Emese; Hillestrøm, Peter René; Laursen, Kristian Holst; Husted, Søren; Larsen, Erik Huusfeldt

doi:10.1016/j.foodchem.2009.01.054

Cited by 138 publications

(95 citation statements)

References 24 publications

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“…In carrot leaves, foliarly sprayed with 100 mg Se L -1 in the form of selenate, Kapolna et al detected 80 µg Se g -1 , of which they found 32% to be in the form of the Se species Se(VI), SeMet and Se(IV), in decreasing order. 28 Speciation in stems gave similar results to those obtained for leaves. We detected traces of Se(VI) as the only species present.…”

Section: Se Species In Buckwheat Plant Partssupporting

confidence: 71%

Selenium and Its Species Distribution in Above-ground Plant Parts of Selenium Enriched Buckwheat (Fagopyrum esculentum Moench)

et al. 2009

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Section: Se Species In Buckwheat Plant Partssupporting

confidence: 71%

Selenium and Its Species Distribution in Above-ground Plant Parts of Selenium Enriched Buckwheat (Fagopyrum esculentum Moench)

et al. 2009

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“…Although selenium has not been demonstrated to be essential in plants, many studies show that, when supplied in low doses, Se benefits plant growth and production (Kápolna et al, 2009;Ramos et al, 2011;Boldrin et al, 2013;Zhu et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Research has already shown that carrots are highly efficient in absorbing and metabolizing Se, when supplied at low doses via the leaf (Kápolna et al, 2009) and soil (Bañuelos et al, 2015;Smoleń et al, 2016). However, there are few studies focusing on this specie.…”

Section: Introductionmentioning

confidence: 99%

Agronomic biofortification of carrot with selenium

et al. 2018

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The selenium (Se) is essential for human metabolism, but a large part of the world's population has deficiency in this element. This can be reversed by the consumption of biofortified foods, given that plants can efficiently act in controlling excessive and/or accidental consumption of an element that can occur in humans through the use of dietary supplements. The objective of this study was to evaluate the effect of different application forms and sources of Se in the growth, production, nutrition, physical-chemical characteristics, content and accumulation of Se in carrots. The experiment was conducted under greenhouse conditions, using pots containing 4 dm 3 of Red-yellow Latosol. A completely randomized design was used in a 2x2x2 factorial scheme (with and without Se application, two sources of Se: selenate and selenite, two forms of application of Se: soil and foliar applications), with five replicates. Foliar application of selenate increased the yield and titratable acidity, reducing root ripening index. Foliar application of selenite increased the content of Se in the shoots and the content of carotenoids in the roots. Both sources of Se (selenate and selenite) and application forms (soil or foliar application) increased their content in the roots. However, the foliar application of selenate was the most effective source and form of application. Therefore, it is possible to increase the contents of Se in the edible part of carrots, favoring the consumption of this element by the population. Index terms:Daucus carota Lam; selenate; selenite; maturation index; carotenoids. RESUMOO selênio (Se) é essencial para o metabolismo humano, porém, grande parte da população mundial apresenta deficiência nesse elemento. Isto pode ser revertido pelo consumo de alimentos biofortificados, uma vez que as plantas podem atuar de forma eficiente no controle do consumo excessivo e / ou acidental de um elemento que pode ocorrer nos seres humanos através do uso de suplementos dietéticos. Objetivou-se com o presente estudo avaliar o efeito de formas de aplicação e fontes de Se no crescimento, produção, nutrição, características físico-químicas, teor e acúmulo de Se na cenoura. O experimento foi desenvolvido em casa de vegetação, utilizando vasos com quatro dm 3 contendo Latossolo Vermelho Amarelo. Adotou-se o delineamento inteiramente casualizado, em fatorial 2 x 2 x 2 (com e sem aplicação do Se; duas fontes do Se: selenato e selenito; duas formas de aplicação do Se: via solo e foliar), com cinco repetições. O selenato aplicado via foliar aumenta a produção e a acidez titulável e reduz o índice de maturação das raízes. O selenito via foliar aumenta o teor de Se na parte aérea e o teor de carotenoides nas raízes de cenoura. As duas fontes de Se (selenato e selenito) e formas de aplicação (via solo ou foliar) promovem aumento do seu teor nas raízes de cenoura, porém o selenato via foliar é a fonte e forma mais efetiva. Dessa forma, é possível aumentar os teores de Se na parte comestível da cenoura e, assim, favorecer a in...

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“…Foliar Se application is an effective method of biofortifying food crops with Se. Both selenite and selenate have been shown to be more bioavailable to plants when applied directly to leaf surfaces opposed to soils (Kápolna et al 2009). …”

mentioning

confidence: 99%

Possibility of selenium biofortification of winter wheat grain

Ducsay¹,

Ložek²,

Marček³

et al. 2016

Plant Soil Environ.

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Selenium (Se) is one of the elements that determine the normal functioning of an organism; it has antioxidant properties and protects the organism against the actions of free radicals and carcinogenic factors. Selenium is an element that fulfils an important physiological function (Kieliszek and Blažejak 2013), but apart from all the elements, selenium has one of the narrowest range between dietary deficiency (< 40 µg/day) and toxic levels (> 400 µg/day) (Fordyce 2007).While there is no evidence of Se need for higher plants, several reports show that when Se added at low concentrations, it exerts beneficial effects on plant growth. Se may act as quasi-essential micronutrient through altering different physiological and biochemical traits; thus, plants vary considerably in their physiological and biochemical response to Se (El-Ramady et al. 2016).During the last decade, studies related with strategies for Se biofortification in food plants for human nutrition have increased significantly because this metalloid is incorporated into human metabolism mainly as a constituent of food plants (Mora et al. 2015). Biofortification is defined as the process of increasing the bioavailable concentrations of essential elements in the edible portions of cultivated plants through agricultural management (fertilization) or genetic improvement (White and Brodlay 2005).Plant-derived foodstuffs, namely cereals, are the major dietary sources of Se in most countries throughout the world, even if Se contents are strongly dependent upon the corresponding levels in cereal-growing soils. Therefore, wheat is one of the staple crops that appears as an obvious candidate for Se biofortification, considering its Possibility of selenium biofortification of winter wheat grain

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Effect of foliar application of selenium on its uptake and speciation in carrot

Cited by 138 publications

References 24 publications

Selenium and Its Species Distribution in Above-ground Plant Parts of Selenium Enriched Buckwheat (Fagopyrum esculentum Moench)

Selenium and Its Species Distribution in Above-ground Plant Parts of Selenium Enriched Buckwheat (Fagopyrum esculentum Moench)

Agronomic biofortification of carrot with selenium

Possibility of selenium biofortification of winter wheat grain

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