One of the possible ways to challenge selenium (Se) and iodine (I) deficiency in human\nbeings is the joint biofortification of plants with these elements. Though the relationship between\nSe and I is highly pronounced in mammals, little is known about their interactions in plants where\nSe and I are considered not to be essential. Peculiarities of Se and I assimilation by a natural Se\naccumulator, such as Brassica juncea L., cultivar Volnushka, were assessed upon joint and separate\nplant foliar supply with sodium selenate ..... and potassium iodide ..... in two\ncrop seasons (spring, summer). Conversely to the individual application of Se and I, their joint\nsupply did not stimulate plant growth. Separate use of sodium selenate enhanced I accumulation\nby 2.64 times, while biofortification with I increased the Se content in plant leaves by 4.3 times; this\nphenomenon was also associated with significant increase of total soluble solids and ascorbic acid\ncontent in leaves. The joint supply of Se and I did not affect the mentioned parameters. Both joint\nand separate application of Se and I led to synergism between these elements in: inhibiting nitrate\naccumulation; stimulating flavonoids biosynthesis ..... times compared to control plants) as well as\nAl and B accumulation; decreasing Cd and Sr concentrations. Plant biofortification with I increased\nthe content of Mn and decreased K and Li. The consumption of 100 g Brassica juncea leaves provided\n100% of the adequate human requirement of Se and 15.5% of I.
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