Common wheat and Wheatgrass were able to absorb from the soil at the same time uranium, bromine, europium, and thorium Skadi. Toxic metals accumulate in the shoots, to such conclusion came from an employee of the Department of soil science and soil ecology of St. Petersburg state University Irina Stankeeva.
the ability of plants to accumulate metals in the shoots scientists have known for a long time. There is even a technology of cleaning soil, which is called phytoextracts, its the fact that your plot of land planted with certain plants, which absorb the element, pervading the soil. Then the plants are cut and in some cases even give for recycling – the number of items from plants to give.
But phytoextractum many unresolved issues. For example, it is not known what plant is which element absorbs. Also the question arises what to do if the soil is contaminated with several toxic metals.
As the press service of the St. Petersburg state University, in their research, published in the journal Environmental Geochemistry and Health, Irina Stankeeva told about an experiment with wheat and Wheatgrass. It turned out that these plants absorb not one, but several toxic metals.
Moreover, it was found that the concentration of metals in plants is different at different times of the day. For example, in the shoots, cut day turned out to be more toxic substances than those that were collected in the evening.
it was Also found that in the processing of wheat and wheat grass are widely found in nature bacteria Cellulomonas, plants accumulate from the soil a greater quantity of metals. At the University say that it is likely that these bacteria are able to “transform” the metals in a more “digestible” form for the plants.
