The area of soils polluted with heavy metals is increasing due to industrialization and globalization. Aromatic plant species can be a suitable alternative way for agricultural valorization and phytomanagement of such soils by the commercialization of essential oils avoiding risks for the food chain. The potential of growing Helianthus petiolaris in heavy metal polluted soils was assessed in pot experiments using spiked soils and soils from a shooting range. In terms of phytostabilization, H. petiolaris could grow in soils containing 1000 mg/kg Pb2+, 50 mg/kg Cd2+, accumulating more than three times the soil Cd content in the aerial parts and translocating significant amounts of Pb to the aerial parts when growing in soils polluted with up to 500 mg/kg Pb.  When phytostabilization is considered, phytotoxicity of heavy metals strongly depends on the rhizospheric microbial communities, either by mitigating trace element phytotoxicity or promoting plant growth via phytohormone production. So, the effects of heavy metals on the diversity of the rhizospheric bacterial community were assessed using DNA-fingerprinting.

中文翻译：

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以向日葵为先驱的芳香植物物种稳定了铅和镉污染的土壤。

由于工业化和全球化，被重金属污染的土壤面积正在增加。芳香植物物种可以通过精油的商业化避免对食品链的风险，而成为对这些土壤进行农业增值和植物管理的一种合适的替代方法。在盆栽实验中，使用加标土壤和靶场范围内的土壤评估了向日葵在重金属污染土壤中生长的潜力。在植物稳定方面，H。petiolaris可以在含有1000 mg / kg Pb2 +，50 mg / kg Cd2 +的土壤中生长，在地上部分累积的Cd含量是土壤的三倍以上，并且在生长时会向地上部分转移大量Pb污染高达500 mg / kg铅的土壤中。考虑到植物稳定作用 重金属的植物毒性在很大程度上取决于根际微生物群落，可以通过减轻微量元素的植物毒性或通过植物激素的产生促进植物生长。因此，使用DNA指纹图谱评估了重金属对根际细菌群落多样性的影响。