Screening for plants and rhizospheral fungi with bioremediation potency of petroleum-polluted soils in a Tehran oil refinery area

Phytostabilization of Heavy Metals and Fungal Community Response in Manganese Slag under the Mediation of Soil Amendments and Plants

“…It can rapidly change or even destroy the structure of the original community and form new soil microbial communities [63,64]. Some studies have shown that in environments with low carbon sources, nutrients and drought or heavy metal stress, soil fungi are generally dominated by ascomycetes [65,66], which is consistent with our research results. In our study, a tolerant fungal community structure dominated by Ascomycota (relative abundance of 52.83%) was formed in the manganese slag.…”

“…Due to the long-term exposure to high concentrations of HMs, at the genus level, the dominant species in CK with a relative abundance exceeding 1% were only Leucocoprinus (8.02%), Alternaria (4.45%) and Idriella (4.10%). This indicates that these three genera exhibit strong adaptation to heavy metal stress, with Alternaria mostly being a plant pathogenic fungus, while being proven to display strong resistance to HMs and environmental stress [63,65]. After the addition of the amendments alone (M0), significant changes occurred in the microbial community structure of the manganese slag, with the abundance of the phylum Basidiomycota increasing to 87.03% and the genus Clitopilus becoming the dominant species (86.28%) under this phylum.…”