Four hundred hectares of the inland and hilly part of Apulia Region (Southern Italy) were contaminated by using low‐quality composts for many years. That territory now belongs to a national park and needs a sustainable soil restoration. Therefore, a greenhouse experiment was carried out to test the phytoremediation potential of the frugal Helichrysum italicum (Roth) Don, alone and mycorrhized by Septoglomus viscosum. The aims of the research were (a) to test if the H. italicum can reduce the soil content of Cd, Co, Cr, Cu, Ni, Pb, and Zn; (b) to identify in which part of the plant those metals are mainly accumulated; (c) to check the role of S. viscosum in promoting the plant growth and the soil phytoremediation. The results showed better plant growth in contaminated soils in comparison to control soils, regardless of the presence of mycorrhiza, probably due to the better soil fertility parameters in contaminated soils. In addition, non‐mycorrhized plants from contaminated soil accumulated greater amounts of heavy metals, especially Cr, Cu, Pb, and Zn, in their root system. According to the translocation and bioconcentration factors, the mechanism by which H. italicum incorporated heavy metals was ascribable to a phytostabilization process. In contrast, the application of mycorrhiza in the contaminated soil reduced the uptake of heavy metals by the roots, possibly through an exclusion mechanism, reducing the phytoremediation potential of H. italicum.

中文翻译：

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菌根和未菌根的蜡菊（Rich）Don对重金属污染土壤的修复

多年来，普利亚地区（意大利南部）的内陆和丘陵地区有400公顷的土地被劣质堆肥污染。该领土现在属于国家公园，需要可持续的土壤修复。因此，进行了温室试验，以测试节俭的Helichrysum italicum（Roth）Don单独的植物修复潜力，并通过粘膜腐霉菌（Septoglomus viscosum）对其进行了菌根化。研究的目的是（a）测试H是否。 Italicum可以减少Cd，Co，Cr，Cu，Ni，Pb和Zn的土壤含量；（b）确定这些金属主要在工厂的哪个部分积累；（c）检查S的作用。 粘胶在促进植物生长和土壤植物修复方面。结果表明，与无污染菌根相比，与对照土壤相比，受污染土壤中植物的生长更好，这可能是由于受污染土壤中的土壤肥力参数更好。此外，来自污染土壤的未菌根植物在根系中积累了大量的重金属，尤其是Cr，Cu，Pb和Zn。根据易位和生物富集因素，H的作用机理。 意大利掺入的重金属可归因于植物稳定过程。相比之下，在受污染的土壤中施用菌根可减少根部对重金属的吸收，这可能是通过排斥机制，从而降低了H的植物修复潜力。 Italicum。