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首页> 外文期刊>Genetics and Plant Physiology >EFFECTS OF EDTA AND CITRATE ADDITION TO THE SOIL ON C4 PHOTOSYNTHETIC ENZYMES AND BIOCHEMICAL INDICATORS FOR HEAVY METAL TOLERANCE IN TWO PAULOWNIA HYBRIDS
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EFFECTS OF EDTA AND CITRATE ADDITION TO THE SOIL ON C4 PHOTOSYNTHETIC ENZYMES AND BIOCHEMICAL INDICATORS FOR HEAVY METAL TOLERANCE IN TWO PAULOWNIA HYBRIDS

机译：两种肺炎杂交种中C4光合酶和生化指标对土壤中的土壤和生化指标的影响

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摘要

Phytoremediation is a low cost, long term, environmentally and aesthetically friendly in situ technology for toxins removal from contaminated soils (especially heavy metals and metalloids), by the roots of plants with subsequent transport to aerial plant organs. This technology is suitable for large areas, in which other approaches would be expensive and ineffective. The influence of the addition of EDTA and citrate to heavy metal contaminated soil on the activities of C4 photosynthetic enzymes, including phosphoenolpyruvate carboxylase; pyruvate, phosphate dikinase and NADP-malic enzyme in two-year-old plantlets of Paulownia tomentosa xfortunei - TFO1 and Paulownia elongata x fortunei - EF02 was evaluated in a pot experiment. Treatment with 1 mM EDTA and 10 mM citrate had a protective effect against heavy metal stress through improvement of CO_2 concentration mechanism and total antioxidant activity in TF01, while the application of 1 mM EDTA and 5 mM citrate enhanced antioxidant activity only inEF02. Comparative analyses of results showed that P. tomentosa x fortunei -TFO 1 hybrid possessed a more effective CO_2 concentration mechanism and antioxidant defence under heavy metal stress than P. elongata xfortunei - EF02 and could be successfully used for phytoremediation of polluted soils.
机译：植物修复是一种低成本，长期，环境和美观的原位技术，用于毒素从污染的土壤（尤其是重金属和金属体）的毒素，通过植物的根源，随后运输到空中植物器官。该技术适用于大面积，其中其他方法将是昂贵和无效的。添加EDTA和柠檬酸盐对重金属污染土壤的影响对C4光合酶的活性，包括磷酸丙酮酸羧酸盐;在Paulownia Tomentosa Xfortunei - TFO1和Paulownia Elongata X Fortunei - EF02的两年历史型Plantlets中，磷酸盐二氨基酶和NADP-malic酶在锅实验中进行了评估。用1mM EDTA和10mM柠檬酸盐处理通过改善CO_2浓度机制和TF01中的总抗氧化活性对重金属应力进行保护效果，而1mM EDTA和5mM柠檬酸盐增强的抗氧化活性仅均为INF02。结果的比较分析表明，P.Tomentosa X Fortunei -TFO -TFO 1杂交物在重金属应力下具有比P. Elongata Xfortunei - EF02更有效的CO_2浓度机制和抗氧化防御，并且可以成功地用于污染土壤的植物修复。

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