在受铅污染的土壤中共同栽培木棉 x giganteus 和天竺葵 x hortorum 以减少压力,提高生物量产量。

IF 3.4 4区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES
Sarah Berns, Jaïro Falla-Angel, Antoine Bonnefoy, Lucas Charrois, Philippe Laval-Gilly
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引用次数: 0

摘要

洛林大部分地区的工业历史和土壤活动的加剧增加了受污染地区的数量。为了恢复这些地区,可以采用多种方法。在这项研究中,利用 Miscanthus x giganteus 和 Pelargonium x hortorum 的共培养来净化主要受金属元素(包括铅)污染的土壤。对观赏植物的使用研究很少,即使这些物种可用于修复场地,同时改善其美观。实验结束时,测量了土壤和植物中的铅浓度。此外,还测量了植物激素,以评估植物在污染物面前的防御机制。结果表明,在实施植物修复过程后,铅浓度有所降低,PxH 能够从土壤中提取铅。关于植物在胁迫条件下合成的分子,只在 MxG 根部和气生部分发现了水杨素,尤其是在单独培养的植物中。根据所获得的结果,MxG 似乎能够在合成保护性分子和自身发展之间做出妥协。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Stress reduction with co-culture of Miscanthus x giganteus and Pelargonium x hortorum in a pb contaminated soil to improve biomass production.

The industrial past of most regions in Lorraine and the intensification of activities on soils has increased the number of polluted sites. To rehabilitate these areas, several methods can be employed. In this study, co-culture of Miscanthus x giganteus and Pelargonium x hortorum was used to clean up a soil mainly contaminated by metallic elements including lead. The use of ornamental plants has been little studied, even if these species can be used to rehabilitate a site while improving its esthetics. At the end of the experiment, Pb concentrations were measured in the soil and plants. Furthermore, phytohormones were also measured to evaluate the defense mechanisms of the plants in front of pollutants. The results showed a reduction in Pb concentrations following the phytoremediation process implemented and that PxH was able to extract Pb from the soil. Results showed that co-culture was not beneficial to the development of MxG. Concerning the molecules synthesized by the plants under stress conditions, only salicin was found in MxG roots and aerial parts in particular for plants grown in individual culture. According to the results obtained, it seems that MxG is able to make compromises between the synthesis of protective molecules and its development.

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来源期刊
International Journal of Phytoremediation
International Journal of Phytoremediation 环境科学-环境科学
CiteScore
7.60
自引率
5.40%
发文量
145
审稿时长
3.4 months
期刊介绍: The International Journal of Phytoremediation (IJP) is the first journal devoted to the publication of laboratory and field research describing the use of plant systems to solve environmental problems by enabling the remediation of soil, water, and air quality and by restoring ecosystem services in managed landscapes. Traditional phytoremediation has largely focused on soil and groundwater clean-up of hazardous contaminants. Phytotechnology expands this umbrella to include many of the natural resource management challenges we face in cities, on farms, and other landscapes more integrated with daily public activities. Wetlands that treat wastewater, rain gardens that treat stormwater, poplar tree plantings that contain pollutants, urban tree canopies that treat air pollution, and specialized plants that treat decommissioned mine sites are just a few examples of phytotechnologies.
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