Agronomic biofortification of Brassica with selenium—enrichment of SeMet and its identification in Brassica seeds and meal

Seppänen, Mervi; Kontturi, Juha; Heras, Isabel Lopez; Madrid, Yolanda; Cámara, Carmen; Hartikainen, Helinä

doi:10.1007/s11104-010-0523-y

Cited by 79 publications

(45 citation statements)

References 31 publications

(41 reference statements)

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“…In this study, we can clearly note that selenite could promote purple lettuce growth at low concentrations, but purple lettuce growth was inhibited at high concentrations (exceeding 8 μM) as compared with the control (Figs 1 and 2). With the increase of selenite concentration in the nutrient solution, Se content in agricultural plants significantly increased, which agrees with those previous results [23][24][25].…”

Section: Discussionsupporting

confidence: 93%

How Exogenous Selenium Affects Anthocyanin Accumulation and Biosynthesis-Related Gene Expression in Purple Lettuce

Liu¹,

Li²,

Wang³

et al. 2017

Pol. J. Environ. Stud.

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Section: Discussionsupporting

confidence: 93%

How Exogenous Selenium Affects Anthocyanin Accumulation and Biosynthesis-Related Gene Expression in Purple Lettuce

Liu¹,

Li²,

Wang³

et al. 2017

Pol. J. Environ. Stud.

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“…Two-year average results of selenite foliar applications at the growth stage of 2 nd node on the main stem (32 BBCH) showed no significant effect on winter wheat grain yields, while selenate supply (10 g Se/ha) resulted in a significant increase of grain yield (Table 2) (Broadley et al 2010), yield of rapeseed (Seppänen et al 2010) and maize grain yield (Chilimba et al 2012, Wang et al 2013. However, several studies showed that Se application positively affected the plant.…”

Section: Resultsmentioning

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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“…Although there is increasing evidence that Se enrichment of plants can exert beneficial effects on their growth, antioxidant capacity and stress tolerance (Hartikainen 2005), Se however has not been recognised as an essential micronutrient for higher plants (Seppänen et al 2010). This paper reports the comparative effects of selenite and selenate on the lettuce plants, with a special focus on the use of this species for biofortification with Se.…”

Section: Discussionmentioning

confidence: 99%

Comparative effects of selenite and selenate on growth and selenium accumulation in lettuce plants under hydroponic conditions

Hawrylak-Nowak

2013

Plant Growth Regul

163

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The effects of different concentrations of selenite (2-30 lM) and selenate (2-60 lM) on biomass production, leaf area, and concentrations of photosynthetic pigments in lettuce plants were investigated. On the basis of the obtained results, the threshold of toxicity for the selenite and selenate has been designated. The toxicity thresholds for selenite and selenate were determined at concentrations of 15 and 20 lM, respectively. Next, four selenium (Se) concentrations (2, 4, 6 or 15 lM), below or near the toxicity boundary, have been selected for the lettuce biofortification experiment. In the biofortified plants, the oxidant status (levels of lipid peroxidation and H 2 O 2 concentrations), as well as Se and sulphur (S) accumulation were analysed. In the edible parts of the lettuce, the Se concentration was higher for selenate presence compared to selenite; however, this difference was not as obvious as it was noted in the case of the roots, where selenite application caused the high accumulation of Se. An application of 15 lM Se as selenite caused a decline in the biomass and an intensification of prooxidative processes in the plant's tissues and as toxic should be excluded from further biofortification experiments. These results indicate that an application of either selenate or selenite to the nutrient solution at concentrations below 15 lM can be used for biofortification of lettuce with Se, evoking better plant growth and not inducing significant changes in the oxidant status, the concentration of assimilation pigments and S accumulation.

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Agronomic biofortification of Brassica with selenium—enrichment of SeMet and its identification in Brassica seeds and meal

Cited by 79 publications

References 31 publications

How Exogenous Selenium Affects Anthocyanin Accumulation and Biosynthesis-Related Gene Expression in Purple Lettuce

How Exogenous Selenium Affects Anthocyanin Accumulation and Biosynthesis-Related Gene Expression in Purple Lettuce

Possibility of selenium biofortification of winter wheat grain

Comparative effects of selenite and selenate on growth and selenium accumulation in lettuce plants under hydroponic conditions

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