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  selenate
Combined application of Epin and sodium selenate had virtually no effect on selenium accumulation in the pulp but increased the microelement content in the fruit skin and roots.
      
Synthesis and Crystal Structure of the First Uranyl Selenite(IV)-Selenate(VI) [C5H14N][(UO2)(SeO4)(SeO2OH)]
      
The U(1)O6(H2O) and U(3)O6(H2O) linked through selenate groups form chains running along [
      
Synthesis and crystal structure of a new uranyl selenite(IV)-selenate(VI), [C5H14N]4[(UO2)3(SeO4)4(HSeO3)(H2O)](H2SeO3)(HSeO4)
      
Crystals of a new uranyl selenite(IV)-selenate(VI), [C5H14N]4[(UO2)3(SeO4)4(HSeO3)(H2O)]·(H2SeO3)(HSeO4) were obtained by evaporation from aqueous solutions.
      
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The accumulation of sulphur and selenium containing compounds and their effects on glucosinolates in plant tissues of oilseed rape ( Brassica napus) was investigated. To study the effects of treatments on accumulation of glucosinolates in plant tissues, L methionine, selenate (SeO 2- 4 ) were used to replace sulphate (SO 2- 4 ) or increased SO 2- 4 supply in the nutrient solutions used in the culture of oilseed rape seedlings with sulphur (S) stress and sufficient. The results...

The accumulation of sulphur and selenium containing compounds and their effects on glucosinolates in plant tissues of oilseed rape ( Brassica napus) was investigated. To study the effects of treatments on accumulation of glucosinolates in plant tissues, L methionine, selenate (SeO 2- 4 ) were used to replace sulphate (SO 2- 4 ) or increased SO 2- 4 supply in the nutrient solutions used in the culture of oilseed rape seedlings with sulphur (S) stress and sufficient. The results indicated that synthetic rates of glucosinolate were significantly correlated with S supply. There was a strongly adverse effect of SeO 2- 4 on glucosinolate accumulation. It was a more strong effect for sufficient S supplied plants, and the glucosinolate concentration was linearly decreased with time. There was a similar pattern but not so strongly by the treatment of L methionine compared with SO 2- 4 concentration increased. Antagonistic function to glucosinolate synthesis existed in the treatment of L methionine plus SeO 2- 4 .

温室条件下,对硫胁迫与供硫充足的油菜植株,分别用 L甲硫氨酸和硒酸盐( Se O2-4 )代替营养液中的硫酸盐以及增加 S O2-4 供应浓度的方法,探讨了不同处理对油菜植株硫甙合成积累的影响。结果说明,增加供硫浓度可明显促进硫甙的合成速率,且在 48h 内对两个供硫水平的植株皆呈密切的二次回归型递增趋势; Se O2-4 对植株硫甙的合成积累具有强烈的阻抑效应,并对供硫充足的植株影响更大,48h 内呈直线下降; L甲硫氨酸具有与 S O- 24 浓度提高处理的相似效果但程度略低,而 L甲硫氨酸加 Se O2-4 处理对植株硫甙的合成积累具有抑制作用

Selenium uptake and accumulation by different soybean cultivars in low-Se soils were studied with both field and pot experiments. The results showed that significant difference of seed Se accumulation existed among soybean cultivars supplied with or without selenite. Tong-ai 405 cultivar has higher Se sensitivity and can accumulate 4 times higher Se in seeds than Qidong green-skin cultivar, however, the latter has higher capability of utilizing fertilizer Se. Yet, the findings with pot experiments support with...

Selenium uptake and accumulation by different soybean cultivars in low-Se soils were studied with both field and pot experiments. The results showed that significant difference of seed Se accumulation existed among soybean cultivars supplied with or without selenite. Tong-ai 405 cultivar has higher Se sensitivity and can accumulate 4 times higher Se in seeds than Qidong green-skin cultivar, however, the latter has higher capability of utilizing fertilizer Se. Yet, the findings with pot experiments support with field study results.Higher Se uptake by Tong-ai 405 roots of soil indigineous Se is responsible for its higher Se concentration in seeds. The further experiments with selenite uptake kinetics showed that the difference of Se uptake by roots of the two cultivars in low-Se soils was mainly due to the difference of their ability of selenate uptake.

通过大田和盆栽试验研究了低硒土壤中主栽大豆品种积累硒的品种差异并对其机理进行了初步探讨。结果表明 ,无论施硒与不施硒 ,不同大豆品种子粒对硒的积累均存在显著的差异。供试品种中 ,通矮 4 0 5积累土壤硒的能力较强 ,启东绿皮黄豆硒肥的肥效较高。盆栽试验结果表明 ,两品种子粒积累硒的差异是由于植株对土壤有效硒利用率的不同造成的。在硒酸钠依时间和浓度的吸收动态试验中 ,通矮 4 0 5幼苗含硒量均高于启东绿皮黄豆 ,但硒从根部向地上部的运输则无差异。说明通矮 4 0 5植株对土壤溶液中Se6 +较强的吸收能力导致了其对低硒土壤中有效硒有较高的利用率 ,是其子粒积累硒能力较强的根本原因。

 
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