Impact of molybdenum on Chinese cabbage response to selenium in solution culture

文献类型： 外文期刊

第一作者： Zhang, Mu

作者： Zhang, Mu;Hu, Chengxiao;Zhao, Xiaohu;Tan, Qiling;Sun, Xuecheng;Li, Na

作者机构：

关键词： molybdenum;selenium;transfer factor;distribution coefficient;Chinese cabbage (Brassica campestris L. ssp Pekinensis)

期刊名称：SOIL SCIENCE AND PLANT NUTRITION （ 影响因子：2.389； 五年影响因子：2.525 ）

ISSN： 0038-0768

年卷期： 2012 年 58 卷 5 期

页码：

收录情况： SCI

摘要： Molybdenum (Mo) and selenium (Se) are both essential micronutrients for animals and humans. Increasing Mo and Se contents in food crops offers an effective approach to reduce Mo and Se deficiency problems. A hydroponic trial was conducted to investigate the interactions of Mo and Se on uptake, transfer factors (TFshoot) as well as distribution coefficients (DC) of Mo and Se on Chinese cabbage (Brassica campestris L. ssp. Pekinensis). In Experiment 1 three concentrations of Mo (0.01, 0.1 and 1mg L-1) and four concentrations of Se (0, 0.01, 0.1 and 1mg L-1) were arranged with a randomized block design. In Experiment 2, there were three treatments, 0.1 mg L-1 Mo, 0.1 mg L-1 Se and a combination of 0.1 mg L-1 Mo + 0.1 mg L-1 Se. Experiment 1 showed that Se decreased Mo concentrations in shoots and roots. The impact of Mo on Chinese cabbage response to uptake of Se varied, depending on whether the root Se concentration was saturated or not; Experiment 2 showed that there is a strong antagonism between Mo and Se on nutrition uptake when Mo and Se deficiencies persist for long periods; Mo and Se were easily translocated from solution to plants and from roots to shoots. The results will also be of help in cultivating Mo-enriched and Se-enriched crops.

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