Improving crop tolerance to heavy metal stress by polyamine application.
Improving crop tolerance to heavy metal stress by polyamine application.
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DOI：
10.1016/j.foodchem.2016.06.087
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发表时间：
2016-12
期刊：
影响因子：
8.8
通讯作者：
P. Soudek;M. Ursu;Š. Petrová;T. Vanek
中科院分区：
文献类型：
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作者：
P. Soudek;M. Ursu;Š. Petrová;T. Vanek
许多地区受到工业重金属的严重污染，不适合粮食生产。食用受污染的食品对人类健康构成风险，尽管某些重金属在低浓度下是必不可少的。提高食物中必需元素的含量是改善营养的目的之一，本研究旨在通过外源性腐胺的施用来增加植物性食物中重金属的积累。测定了在添加重金属的水培培养基中生长的不同蔬菜中镉、锌和铁的含量，并与在参考培养基中生长的蔬菜进行了比较。估计每日摄入量，根据不同蔬菜类型的平均每日消费量，和多胺对金属吸收的影响进行了计算。
Many areas have been heavily contaminated by heavy metals from industry and are not suitable for food production. The consumption of contaminated foods represents a health risk in humans, although some heavy metals are essential at low concentrations. Increasing the concentrations of essential elements in foods is one goal to improve nutrition.The aim of this study was to increase the accumulation of heavy metals in plant foods by the external application of putrescine. The levels of cadmium, zinc and iron were measured in different vegetables grown in hydroponic medium supplemented with heavy metals and compared with those grown in a reference medium. The estimated daily intake, based on the average daily consumption for various vegetable types, and the influence of polyamines on metal uptake were calculated.